2001 90 HP 4-stroke oil pressure lost

sfox

Recruit
Joined
Jun 29, 2004
Messages
1
I've had a series of intermittent problems since I purchased this, involving poor starting and /or rpm limited to 2500 rpm. Dealer can't find the problem, doesn't do it for him. When I got the boat out this spring, I started out with the low max rpm problem, that went away, then had the siren going off for low oil pressure. Dealer first said it was the sender, replaced it, now says it has no oil pressure and is trying to figure out why - not sure he has much experience with 4 strokes - Also, I noticed some oil in the base area at floor of engine, not sure where it could come from. Any ideas what problem could be?
 

screeech

Cadet
Joined
Jun 13, 2004
Messages
14
Re: 2001 90 HP 4-stroke oil pressure lost

I am no mechanic, but I have seen a couple of these motors with gasket problems. I believe it was the main head gasket was breaking prematurely.
 

2springers26

Seaman
Joined
May 18, 2004
Messages
63
Re: 2001 90 HP 4-stroke oil pressure lost

is there alot of time on the motor... if the drive shaft bushing is not changed when a impeller is installed... the drive shaft sway will take out the oil pump!!!
 
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