David Hill wrote in
:


I'm a bit confused about the engine on this one. You say it's a Hatz
diesel, then you say it has a Kohler engine.

He said a Hatz mower. Baz is right see, except it is a petrol engine.
http://www.rescuingthepast.co.uk/Howard_Gem.html

I only know of Kohlers as petrol engines. The Hatz diesel was a 2
stroke diesel engine, and a good one. So I wonder if it's had an
engine transplant at some point, it's often the case with old Gems.
I can tell you a certain amount at least about operation of the Hatz
diesel if in fact that's what it is. The Kohler petrol engines as
fitted to the Gem were pretty much standard industrial engines that
should be self explanatory to anyone experienced with larger petrol
driven garden machines. Try online for facsimile manuals, parts etc.
There used to be a rump of Dowdswell - the company that took over
the brand after Howard went bust and you could get some spares from
them but I don't know if they're still going. A local firm that
serviced our old Gem always seemed to be able to get bits and Gems
are still being used by many landscape firms so you should be OK.

Rod


I don't know if I am missing posts but Baz said it has a Kohler K301T
engine.
No mention of Hatz engine, He also said he has had it running.
I am sure that he can tell the difference between petrol and diesel,
and can tell if the engine has a spark plug or not.

Confusion over I think.
It was bought new with a Kohler petrol engine, as it says on the paperwork,
and was later fitted with the Hatz diesel in the 70's so it could use
cheaper red diesel. I have never heard of any of the two engine
manufacturers before so it's very exciting really. The guy still has the
Kohler engine according to his son and that is mine too, just have to find
it and cart it home. What do you do with this?
I am tempted to restore this beautiful machine, but for now it is a tool
and it runs nicely, a bit rattly.

Baz