Running Rich
 

I have an 88 turbo I just rebuilt. The motor seems fine except it keeps fouling plugs and will not start after it warms up. It will start fine when it cools down. What would cause this problem? Would the fast idle cam adjustment cause this prblem? If not what would??? PLEASE HELP!!!:confused:

If it won't start when warm it might be flooding due to leaky injectors. That might also be the cause of the fouled plugs if the engine keeps flooding.

Most likely, the injectors are leaking.

Other possible causes:

-bad water thermo sensor (in back of water pump)
If working correctly, enrichens mixture + hike idle to 1,200 rpms when cold)

-bad bac valve (supposed to let maximum air when starting a hot engine)

Hugues -