wont idle with arrestor / crank case vents on

[pattyson]

Hi, I've got an 84 3.8l omc. 2bbl It wont idle with the crank case vent tubes against the arrestor. It just slowly dies off.
Im thinking Idle mixture. ??
Thanks
pattyson

 

[Coors]

Re: wont idle with arrestor / crank case vents on

http://forums.iboats.com/showthread.php?t=167561

Or a carb rebuild.

 

[subcrx]

Re: wont idle with arrestor / crank case vents on

does it look like you have steam coming out those tubes with them off?

 

[pattyson]

Re: wont idle with arrestor / crank case vents on

Ya there was some -- slight -- steamy - white ish looking vapor / smoke venting from them. Smelled rich to me.
So I went ahead and checked and reset the idle mixture screws to normal ... 2 1/2 turns out. Runs fine now. Its a new boat to me, from a hunderd + miles from me. Different operating environment. The screws were at like 4 turns out.
What do ya think about whats venting? I didnt check to see if it was still venting like that after running on lake after adjusting.

pattyson

 

[Gary H NC]

Re: wont idle with arrestor / crank case vents on

Keep an eye on the oil just in case you have water intrusion in the engine.
4 turns out was way too rich.The slight steam may have just been condensation in the crank case from sitting.It should clear up after a good run on the water.A little blow by out of those hoses is pretty common.

 

[Muqwump]

Re: wont idle with arrestor / crank case vents on

Change the arrestor and PCV valve out first. Sounds like it is restricted.