3 weeks ago
My Etec 250 HO has started to leak some fuel out of the exhaust.
I noticed it is worse at a cold start then after warming it is hardly noticable....but still there.
When cold you can see it come to the top of the water as small drops then it expands on the water surface leaving a slick.
After warming up and running a couple of times....it's only a small patch of it noticable.
Any ideas what may be causing this issue ?
My engine mechanic found the issue......engine running cold on one half of block.
Took thermostat out and it had a small piece of wood under it causing it not to seat correctly thus making one half of the engine block run cold.
Made sense since it did not leak bad at all except for 1st / cold start in the morning.