Oil level came up??

Lit549

Seaman Apprentice
Joined
May 12, 2012
Messages
32
Its a 87 four winns 19ft mercruiser with 4.3..I ran it for 3-4 days on vacation and the oil level came up,i know;cracked block..BUT,is there any other possibilities besides head gasket?? It doesnt run hot,runs great and 1st oil change when i got it oil had no milk to it(changed through dipstick)..The engine also has new exhaust manifolds,could that add water(cracked manifold) and thats why theyve been changed?? Engine has 380hrs,and runs very good..Maybe bad fuel pump seal??Any suggestions,tests i could do??THANKS in advance!
 

Don S

Honorary Moderator Emeritus
Joined
Aug 31, 2004
Messages
62,321
Re: Oil level came up??

How much did the oil level rise. I know everyone always hopes the head gasket is the problem, but I don't recall anyone ever finding that it was.
 

Grub54891

Vice Admiral
Joined
Jun 17, 2012
Messages
5,908
Re: Oil level came up??

Your mechanical fuel pump will do that. Check the oil,if it smells gassy then the pump is no good.
Grub
 
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