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Search took 0.00 seconds. Search: Posts Made By: mmwjr

Forum: Engines

10-08-2016, 03:50 AM

Replies: 22

Merc 5.7 loses oil pressure, one manifold hot, white stuff on remote oil filter.

Views: 3,007

Posted By mmwjr

No alarm? Those pressure readings sound...

No alarm?

Those pressure readings sound normal for those conditions.

Forum: Engines

09-19-2016, 12:54 AM

Replies: 22

Merc 5.7 loses oil pressure, one manifold hot, white stuff on remote oil filter.

Views: 3,007

Posted By mmwjr

Since gauge and alarm are going off not sure what...

Since gauge and alarm are going off not sure what a mechanical gauge will provide that you do not already know.

Too much fuel can get past the rings and thin out the oil but not to the point of...

Forum: Engines

09-14-2016, 01:17 AM

Replies: 22

Merc 5.7 loses oil pressure, one manifold hot, white stuff on remote oil filter.

Views: 3,007

Posted By mmwjr

How many hours are on the engine? What you just...

How many hours are on the engine? What you just described sounds a lot like how my old engine was at the beginning of this season but a 5 psi it was knocking up a storm. IMO a rebuild or new engine...

Forum: Engines

09-12-2016, 11:11 PM

Replies: 22

Merc 5.7 loses oil pressure, one manifold hot, white stuff on remote oil filter.

Views: 3,007

Posted By mmwjr

Yes but it does get thinner and if the engine has...

Yes but it does get thinner and if the engine has loosened up in the main bearing it may loose pressure, yes a long shot.

However since it goes to zero but then recovers has me thinking it's the...

Forum: Engines

09-12-2016, 08:32 PM

Replies: 22

Merc 5.7 loses oil pressure, one manifold hot, white stuff on remote oil filter.

Views: 3,007

Posted By mmwjr

Really not sure what it is. Try unbolting...

Really not sure what it is.

Try unbolting the oil filter bracket from the exhaust to see if the hot manifold/riser are heating the oil up and thinning it out. Use some cord to tie it off so it's...

Forum: Engines

09-12-2016, 02:09 AM

Replies: 22

Merc 5.7 loses oil pressure, one manifold hot, white stuff on remote oil filter.

Views: 3,007

Posted By mmwjr

What does the oil pressure drop to? Any...

What does the oil pressure drop to?

Any knocking noise?

Could be the oil pump pressure regulator getting stuck open.

My 5.7 lost oil pressure when hot this year along with a knock, it was...

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