1987 OMC 3.0 STALLS

[jpimentel]

I have a 1987 OMC 3.0 that idles great when cold but after running for 30 min or more it idles rough and i will have a hard time getting her in gear without stalling. This low hour motor for some reason does have a lot of blow-by i have done a compression check and all was great, but have not done a leak down test yet. Any ideas would be great. Thanks!

 

[Bondo]

Re: 1987 OMC 3.0 STALLS

My 1st Guess is,........<br /><br />Your Choke is Out of Adjustment,.....If it's not releasing, it's idling Rich when warm.........<br />Or,...<br />The Low-Speed Circuit in the Carb. is restricted,...... When the Choke releases,... It's going Lean,.......<br /><br />Either Way,.......... I'd be looking at Fuel Delivery Issues,....(the Carb.).......