Engine running too fast

damian green · Post by **damian green** » Sat Jan 16, 2010 6:17 pm

Hi,
I posted a message about the overheating incident followed by poor starting, it did turn out to be the head. Now replaced I have a small problem the engine is reving very fast moving the throttle will speed it up but not slow it. it shuts off fine on pull stop, could this be the idle speed set wrongly or the fuel pump govenor ....... ?

Jan 59 · Post by **Jan 59** » Sat Jan 16, 2010 8:51 pm

Check the vacuumpipe from inlet manifold to governor housing.
May be false connection .
Or it can be a leak in the governor diphragm

damian green · Post by **damian green** » Sat Jan 16, 2010 9:11 pm

thanks its going to be my first job tomorrow morning the wife will have to wait for her breakfast (Sunday treat lucky girl).
Cheers
Damian

Post by **Brian** » Sat Jan 16, 2010 11:01 pm

If you have a vacuum governed pump it could also be the pump diaphragm.