engine running fast...Briggs and stratton 35 classic petrol
 

(Briggs and stratton 35 classic petrol )

Following on from my previous post regarding flywheel removal and and
rebuild. I am pleased to say everything is back together and it starts,
however it seems to run much faster than it previously did, I don`t think
there is much room for adjustments to the carburetor so thinking maybe there
is something I haven`t put back together properly the only parts that I
might have got wrong are the 2 springs that are attached to the carb which I
think are something to do with it.
Anyone got any ideas or how these 2 springs should be located, or if
anything else could be causing this.

Any help appreciated.
thanks

engine running fast...Briggs and stratton 35 classic petrol
 

"S" wrote:

only parts that I
might have got wrong are the 2 springs that are attached to the carb which I
think are something to do with it.

This will be kind of generic: The usual scheme is that the throttle
control cable connects to some sort of governor, which then connects via
springs to the carb. So when you open the "throttle," you're really
telling the governor what speed you want, and the governor controls the
throttle plate in the carb. Governor adjustment generally involves
loosening a set screw/clamp and adjusting the position of a plate on the
governor shaft that sticks out of the engine. The spring adjustment usually
minimizes "hunting" or speed surging. You well might be able to find a
diagram on line of how things connect.


Gary Woods AKA K2AHC- PGP key on request, or at home.earthlink.net/~garygarlic
Zone 5/6 in upstate New York, 1420' elevation. NY WO G

engine running fast...Briggs and stratton 35 classic petrol
 

In message , S
wrote
(Briggs and stratton 35 classic petrol )

Following on from my previous post regarding flywheel removal and and
rebuild. I am pleased to say everything is back together and it starts,
however it seems to run much faster than it previously did, I don`t think
there is much room for adjustments to the carburetor so thinking maybe there
is something I haven`t put back together properly the only parts that I
might have got wrong are the 2 springs that are attached to the carb which I
think are something to do with it.
Anyone got any ideas or how these 2 springs should be located, or if
anything else could be causing this.

Any help appreciated.
thanks

Does this help?
http://www.amac.f2s.com/spring/index.htm
it's a slightly ***** spring but I believe it's in the correct place
(lawnmower scrapped as there is more rust than metal).

make sure that the triangular bit that the wire link fits into moves
freely and its easy to get it the wrong side of the end stop lug (which
should be in the middle

--
Alan
news2006 {at} amac {dot} f2s {dot} com

engine running fast...Briggs and stratton 35 classic petrol
 

"Alan" wrote in message
...
In message , S
wrote
(Briggs and stratton 35 classic petrol )

Following on from my previous post regarding flywheel removal and and
rebuild. I am pleased to say everything is back together and it starts,
however it seems to run much faster than it previously did, I don`t think
there is much room for adjustments to the carburetor so thinking maybe
there
is something I haven`t put back together properly the only parts that I
might have got wrong are the 2 springs that are attached to the carb which
I
think are something to do with it.
Anyone got any ideas or how these 2 springs should be located, or if
anything else could be causing this.

Any help appreciated.
thanks

Does this help?
http://www.amac.f2s.com/spring/index.htm
it's a slightly ***** spring but I believe it's in the correct place
(lawnmower scrapped as there is more rust than metal).

make sure that the triangular bit that the wire link fits into moves
freely and its easy to get it the wrong side of the end stop lug (which
should be in the middle

--
Alan

Thanks Alan, that answers 50% of my question as there is another spring, the
one you have pictured looks correct as per mine but the other spring
connects as follows.
On your picture on the spring that is ******** at the end of the ******
coiled end , just above it there is a metal triangular part, the other
spring I am sure connects to that but the other end connects where? I might
be wrong but I can just make out the end of the other spring in your picture
on that triangular part.

engine running fast...Briggs and stratton 35 classic petrol
 

In message , S
wrote

Thanks Alan, that answers 50% of my question as there is another spring, the
one you have pictured looks correct as per mine but the other spring
connects as follows.
On your picture on the spring that is ******** at the end of the ******
coiled end , just above it there is a metal triangular part, the other
spring I am sure connects to that but the other end connects where? I might
be wrong but I can just make out the end of the other spring in your picture
on that triangular part.

More pictures on the same link including one where the other spring (or
more correctly thick link wire) is removed at one end.
http://www.amac.f2s.com/spring/index.htm

If the wire link is fitted the wrong way around then the adjustment can
stick in the 'fast' position. Been there and got the T-shirt :)

The are no other springs on my carb but that doesn't mean that B&S don't
have more than one arrangement.


--
Alan
news2006 {at} amac {dot} f2s {dot} com

engine running fast...Briggs and stratton 35 classic petrol
 

Aha! I think this is where I might have got it wrong, picture link below of
mine.

http://tinypic.com/view.php?pic=29clzwi&s=4



"Alan" wrote in message
...
In message , S
wrote

Thanks Alan, that answers 50% of my question as there is another spring,
the
one you have pictured looks correct as per mine but the other spring
connects as follows.
On your picture on the spring that is ******** at the end of the ******
coiled end , just above it there is a metal triangular part, the other
spring I am sure connects to that but the other end connects where? I
might
be wrong but I can just make out the end of the other spring in your
picture
on that triangular part.

More pictures on the same link including one where the other spring (or
more correctly thick link wire) is removed at one end.
http://www.amac.f2s.com/spring/index.htm

If the wire link is fitted the wrong way around then the adjustment can
stick in the 'fast' position. Been there and got the T-shirt :)

The are no other springs on my carb but that doesn't mean that B&S don't
have more than one arrangement.


--
Alan
news2006 {at} amac {dot} f2s {dot} com

engine running fast...Briggs and stratton 35 classic petrol
 

In message , S
wrote
Aha! I think this is where I might have got it wrong, picture link below of
mine.

http://tinypic.com/view.php?pic=29clzwi&s=4

My guess is that spring 2 lives somewhere else :(

--
Alan
news2006 {at} amac {dot} f2s {dot} com

engine running fast...Briggs and stratton 35 classic petrol
 

I agree Alan, this is the original picture taken as I was dismantling and
before the springs were removed, however the picture is not too clear as to
the exact location as to where the ends are located.
It is roughly all in the same area though.

http://tinypic.com/view.php?pic=15pg0fr&s=4



"Alan" wrote in message
...
In message , S
wrote
Aha! I think this is where I might have got it wrong, picture link below
of
mine.

http://tinypic.com/view.php?pic=29clzwi&s=4

My guess is that spring 2 lives somewhere else :(

--
Alan
news2006 {at} amac {dot} f2s {dot} com

engine running fast...Briggs and stratton 35 classic petrol
 

On Fri, 31 Oct 2008 14:33:27 -0000, S wrote:

Anyone got any ideas or how these 2 springs should be located, or if
anything else could be causing this.

I'd go for the springs being wrong somehow. I'd go out and photograph mine
but it's dark, it's cold, and I think I'd have to take a cover off to see
the springs... I also have a sneaky suspicion there might be three springs
but one could be linkage to the paddle blown by the engine fan that opens
the throttle if the revs drop.

--
Cheers
Dave.

engine running fast...Briggs and stratton 35 classic petrol
 

On Fri, 31 Oct 2008 17:57:56 +0000, Alan wrote:

My guess is that spring 2 lives somewhere else :(

Yes it doesn't "look right" just hooked on the the end of the lever from
the fan paddle. If there was notch for it to it in it would be different
but there is nothing to stop it wandering about.

Begger it I've been out. The left hand end of spring 2 should be in the
loop of the linkage along with the left hand end of spring 1. My spring 2
has long closed loops at each end and is very sloppy without the engine
running.

--
Cheers
Dave.

engine running fast...Briggs and stratton 35 classic petrol
 

having messed about with it a bit more I am still at a loss as to how to
locate the springs, however if I start it up and the engine racing if I
manually push the lever that is linked to the regulator (paddle)
then the revs drop so somehow the springs manage the settings, but damned if
I know how.
Going by the photographs i took while dismantling as far as I am aware there
are 2 springs and a linkage to the paddle. going by your and my photographs
the larger spring does locate on the `paddle` and I have one anchor point
for the other spring, the other end of this spring I have anchored at the
same point as the other ie on to the linkage part for the paddle, this seems
the only logical place for it but it does not make sense to me. I am sure it
should be anchored else where but there does not seem to be an obvious
(other) anchor point.

Like you its now to B....y cold to continue, tomorrow will be soon enough.

regards



"Dave Liquorice" wrote in message
ll.net...
On Fri, 31 Oct 2008 14:33:27 -0000, S wrote:

Anyone got any ideas or how these 2 springs should be located, or if
anything else could be causing this.

I'd go for the springs being wrong somehow. I'd go out and photograph mine
but it's dark, it's cold, and I think I'd have to take a cover off to see
the springs... I also have a sneaky suspicion there might be three springs
but one could be linkage to the paddle blown by the engine fan that opens
the throttle if the revs drop.

--
Cheers
Dave.

engine running fast...Briggs and stratton 35 classic petrol
 

I will hook the smaller spring up to the `loop` tomorrow and see what
happens.


"S" wrote in message
...
having messed about with it a bit more I am still at a loss as to how to
locate the springs, however if I start it up and the engine racing if I
manually push the lever that is linked to the regulator (paddle)
then the revs drop so somehow the springs manage the settings, but damned
if I know how.
Going by the photographs i took while dismantling as far as I am aware
there are 2 springs and a linkage to the paddle. going by your and my
photographs the larger spring does locate on the `paddle` and I have one
anchor point for the other spring, the other end of this spring I have
anchored at the same point as the other ie on to the linkage part for the
paddle, this seems the only logical place for it but it does not make
sense to me. I am sure it should be anchored else where but there does not
seem to be an obvious (other) anchor point.

Like you its now to B....y cold to continue, tomorrow will be soon enough.

regards



"Dave Liquorice" wrote in message
ll.net...
On Fri, 31 Oct 2008 14:33:27 -0000, S wrote:

Anyone got any ideas or how these 2 springs should be located, or if
anything else could be causing this.

I'd go for the springs being wrong somehow. I'd go out and photograph
mine
but it's dark, it's cold, and I think I'd have to take a cover off to see
the springs... I also have a sneaky suspicion there might be three
springs
but one could be linkage to the paddle blown by the engine fan that opens
the throttle if the revs drop.

--
Cheers
Dave.

engine running fast...Briggs and stratton 35 classic petrol
 

"S" wrote:

having messed about with it a bit more I am still at a loss as to how to
locate the springs...

I have a B&S engine with two springs, one of which is much finer than
the other. The heavier spring is the linkage between the throttle cable
and the choke/main valve, the finer spring doubles up the linkage
between the crankcase governor and the butterfly valve which it
controls. Its ends just hook into the same holes as the wire link
itself. Because there is a good deal of looseness in the wire linkage,
the fine spring can act as a damper so that the governing action isn't
jerky --just like Gary said!

HTH

brian mitchell

engine running fast...Briggs and stratton 35 classic petrol
 

"brian mitchell" wrote in message
...
"S" wrote:

having messed about with it a bit more I am still at a loss as to how to
locate the springs...

I have a B&S engine with two springs, one of which is much finer than
the other. The heavier spring is the linkage between the throttle cable
and the choke/main valve, the finer spring doubles up the linkage
between the crankcase governor and the butterfly valve which it
controls. Its ends just hook into the same holes as the wire link
itself. Because there is a good deal of looseness in the wire linkage,
the fine spring can act as a damper so that the governing action isn't
jerky --just like Gary said!

HTH

brian mitchell

I now have the springs correctly located but engine still running fast.
Going to take the cover off and have a look at the complete assembly,
everything appears to be free and not sticking so the only thing I can think
of is the fan blades on the flywheel are not producing enough` blow` to push
the governor which is unlikely or the spring on the linkage is to `tense`
and therefore not allowing the governor to be blown back and operating the
carb valve.
I might try and put the likage on the other way round as this should reduce
the tension on the spring, worth a try anyway.

engine running fast...Briggs and stratton 35 classic petrol
 

"S" wrote:


"brian mitchell" wrote in message
...
"S" wrote:

having messed about with it a bit more I am still at a loss as to how to
locate the springs...

I have a B&S engine with two springs, one of which is much finer than
the other. The heavier spring is the linkage between the throttle cable
and the choke/main valve, the finer spring doubles up the linkage
between the crankcase governor and the butterfly valve which it
controls. Its ends just hook into the same holes as the wire link
itself. Because there is a good deal of looseness in the wire linkage,
the fine spring can act as a damper so that the governing action isn't
jerky --just like Gary said!

HTH

brian mitchell

I now have the springs correctly located but engine still running fast.
Going to take the cover off and have a look at the complete assembly,
everything appears to be free and not sticking so the only thing I can
think
of is the fan blades on the flywheel are not producing enough` blow`
to push
the governor which is unlikely or the spring on the linkage is to `tense`
and therefore not allowing the governor to be blown back and operating the
carb valve.
I might try and put the likage on the other way round as this should reduce
the tension on the spring, worth a try anyway.

Just a speculative thought: on my engine the visible part of the
governor consists of a shaft emerging from the crankcase with a lever
clamped onto it. The wire link, with spring wound round it, goes from
the end of the lever to the butterfly valve on the carb. I imagine the
angle of that lever to its shaft is pretty critical so if it got
disturbed it while dismantling/re-assembling, that could affect the
speed setting. Is there any part of the governor mechanism inside the
crankcase that might have become misaligned?

engine running fast...Briggs and stratton 35 classic petrol
 

"brian mitchell" wrote in message
...
"S" wrote:


"brian mitchell" wrote in message
...
"S" wrote:

having messed about with it a bit more I am still at a loss as to how
to
locate the springs...

I have a B&S engine with two springs, one of which is much finer than
the other. The heavier spring is the linkage between the throttle cable
and the choke/main valve, the finer spring doubles up the linkage
between the crankcase governor and the butterfly valve which it
controls. Its ends just hook into the same holes as the wire link
itself. Because there is a good deal of looseness in the wire linkage,
the fine spring can act as a damper so that the governing action isn't
jerky --just like Gary said!

HTH

brian mitchell

I now have the springs correctly located but engine still running fast.
Going to take the cover off and have a look at the complete assembly,
everything appears to be free and not sticking so the only thing I can
think
of is the fan blades on the flywheel are not producing enough` blow`
to push
the governor which is unlikely or the spring on the linkage is to `tense`
and therefore not allowing the governor to be blown back and operating
the
carb valve.
I might try and put the likage on the other way round as this should
reduce
the tension on the spring, worth a try anyway.

Just a speculative thought: on my engine the visible part of the
governor consists of a shaft emerging from the crankcase with a lever
clamped onto it. The wire link, with spring wound round it, goes from
the end of the lever to the butterfly valve on the carb. I imagine the
angle of that lever to its shaft is pretty critical so if it got
disturbed it while dismantling/re-assembling, that could affect the
speed setting. Is there any part of the governor mechanism inside the
crankcase that might have become misaligned?

Thanks Brian, I have since got a picture from `Briggs` showing the correct
layout so I now know that is correct.
Apparently where the other end of the spring locates (opposite from the
linkage end) its a case of bending the metal tab to reduce or increase the
tension on the spring.
having done this I still think its running fast. I am going to take a video
clip and some pictures and will post the links on here later, It will be
interesting to see if others think its running fast or not.
I have messed around with it that much even I am not sure any more.

engine running fast...Briggs and stratton 35 classic petrol
 

Link to small video clip of engine running, I still think a bit fast.
Opinions welcome.

http://s64.photobucket.com/albums/h1...=Videoclip.flv





"S" wrote in message
...


"brian mitchell" wrote in message
...
"S" wrote:


"brian mitchell" wrote in message
...
"S" wrote:

having messed about with it a bit more I am still at a loss as to how
to
locate the springs...

I have a B&S engine with two springs, one of which is much finer than
the other. The heavier spring is the linkage between the throttle
cable
and the choke/main valve, the finer spring doubles up the linkage
between the crankcase governor and the butterfly valve which it
controls. Its ends just hook into the same holes as the wire link
itself. Because there is a good deal of looseness in the wire linkage,
the fine spring can act as a damper so that the governing action isn't
jerky --just like Gary said!

HTH

brian mitchell

I now have the springs correctly located but engine still running fast.
Going to take the cover off and have a look at the complete assembly,
everything appears to be free and not sticking so the only thing I can
think
of is the fan blades on the flywheel are not producing enough` blow`
to push
the governor which is unlikely or the spring on the linkage is to
`tense`
and therefore not allowing the governor to be blown back and operating
the
carb valve.
I might try and put the likage on the other way round as this should
reduce
the tension on the spring, worth a try anyway.

Just a speculative thought: on my engine the visible part of the
governor consists of a shaft emerging from the crankcase with a lever
clamped onto it. The wire link, with spring wound round it, goes from
the end of the lever to the butterfly valve on the carb. I imagine the
angle of that lever to its shaft is pretty critical so if it got
disturbed it while dismantling/re-assembling, that could affect the
speed setting. Is there any part of the governor mechanism inside the
crankcase that might have become misaligned?

Thanks Brian, I have since got a picture from `Briggs` showing the correct
layout so I now know that is correct.
Apparently where the other end of the spring locates (opposite from the
linkage end) its a case of bending the metal tab to reduce or increase the
tension on the spring.
having done this I still think its running fast. I am going to take a
video clip and some pictures and will post the links on here later, It
will be interesting to see if others think its running fast or not.
I have messed around with it that much even I am not sure any more.

engine running fast...Briggs and stratton 35 classic petrol
 

In message , S
wrote
Link to small video clip of engine running, I still think a bit fast.
Opinions welcome.

http://s64.photobucket.com/albums/h1...=Videoclip.flv


That's too fast but what happens after it's warmed up a bit?


--
Alan
news2006 {at} amac {dot} f2s {dot} com

engine running fast...Briggs and stratton 35 classic petrol
 

I haven`t let run for that long in case I screw the engine.
What were you thinking of though?

--


Rent a villa in Turkey

http://www.freewebs.com/turkeyrent/

"Alan" wrote in message
...
In message , S
wrote
Link to small video clip of engine running, I still think a bit fast.
Opinions welcome.

http://s64.photobucket.com/albums/h1...=Videoclip.flv


That's too fast but what happens after it's warmed up a bit?


--
Alan
news2006 {at} amac {dot} f2s {dot} com

engine running fast...Briggs and stratton 35 classic petrol
 

On Sun, 2 Nov 2008 13:26:12 +0000, Alan wrote:

That's too fast but what happens after it's warmed up a bit?

Doesn't seem excessivly fast to me, may be a little quick towards the end
of the run but the start seems about what ours runs at with the throttle
set to "Hare".

--
Cheers
Dave.

engine running fast...Briggs and stratton 35 classic petrol
 

"Dave Liquorice" wrote in message
ll.net...
On Sun, 2 Nov 2008 13:26:12 +0000, Alan wrote:

That's too fast but what happens after it's warmed up a bit?

Doesn't seem excessivly fast to me, may be a little quick towards the end
of the run but the start seems about what ours runs at with the throttle
set to "Hare".

--
Cheers
Dave.



I think still a tad fast but an improvement.
Now that I know where the springs are located I think tomorrow I will take
the springs off and run it to see what happens and just manually position
the choke flap.
If I get it to run a bit better then I think that will tell me its the
springs possibly being too taut.
Thanks goodness I dont need to cut the grass til spring, gives me time to
mess around with it and get it right.

engine running fast...Briggs and stratton 35 classic petrol
 

Problem now sorted...........

It was the metal plate (deflector) behind the governor blade that was bent,
although the governor blade still operated the choke flap it was being
restricted because it couldn`t go back far enough.

So thanks to you guys for all the input and time to read all this.

Much appreciated.

--


Rent a villa in Turkey

http://www.freewebs.com/turkeyrent/

"S" wrote in message
...


"Dave Liquorice" wrote in message
ll.net...
On Sun, 2 Nov 2008 13:26:12 +0000, Alan wrote:

That's too fast but what happens after it's warmed up a bit?

Doesn't seem excessivly fast to me, may be a little quick towards the end
of the run but the start seems about what ours runs at with the throttle
set to "Hare".

--
Cheers
Dave.



I think still a tad fast but an improvement.
Now that I know where the springs are located I think tomorrow I will take
the springs off and run it to see what happens and just manually position
the choke flap.
If I get it to run a bit better then I think that will tell me its the
springs possibly being too taut.
Thanks goodness I dont need to cut the grass til spring, gives me time to
mess around with it and get it right.