milky oil under valve covers..compression test
#41
Registered
Joined: Jun 2006
Posts: 14,914
Likes: 1
From: Lake Conroe, TX.
I won't know if my problem is fixed until I go for a ride..When I first got my boat it had PCV's.. I removed them and ran 2 hoses from the valve cover to the arrester's..Now I put back the pcv's..Everything else checks out.. I never had milky oil on my dipstick, only under the valve covers
Did you change anything...The Hp500 has a pcv at the base of the intake behind the carb.Does yours have pcv's ??..Did they remove your heads? to change the springs..Head gasket ??
Did you change anything...The Hp500 has a pcv at the base of the intake behind the carb.Does yours have pcv's ??..Did they remove your heads? to change the springs..Head gasket ??
#44
I would just change the stat...It maybe getting stuck in a slightly open position allowing constant flow to the cooler..and keeping you temps at 190
I believe the part number is Merc # 816163
I believe the part number is Merc # 816163
Last edited by 35fountain; 04-02-2010 at 07:43 PM.
#45
Registered

Joined: Feb 2009
Posts: 8,356
Likes: 1,515
From: NW Michigan
He's not answering you. What's up with that? LOL... The weather is great here up north.
#46
#47
Have you tested it since replacing the manifolds?
If not I wouldn't check anything else until you go for a test run. You might be worrying for nothing.
Lastly, what heads are you running and how old are they?
If not I wouldn't check anything else until you go for a test run. You might be worrying for nothing.

Lastly, what heads are you running and how old are they?
#48
I haven't tested it yet...another couple of weeks..You maybe right..about worrying for nothing... I don't know how old they are..400 hours since the engines were built through the old owner
#49
Registered
Joined: Mar 2009
Posts: 44
Likes: 0
From: Muscle Shoals, AL
I won't know if my problem is fixed until I go for a ride..When I first got my boat it had PCV's.. I removed them and ran 2 hoses from the valve cover to the arrester's..Now I put back the pcv's..Everything else checks out.. I never had milky oil on my dipstick, only under the valve covers
Did you change anything...The Hp500 has a pcv at the base of the intake behind the carb.Does yours have pcv's ??..Did they remove your heads? to change the springs..Head gasket ??
Did you change anything...The Hp500 has a pcv at the base of the intake behind the carb.Does yours have pcv's ??..Did they remove your heads? to change the springs..Head gasket ??




