I have a 454 mercruiser with a volvo 290, I just pulled the engine and outdrive I replaced the bellows,gimble bearing,ujoints all the normal replacment parts.I am having this rolling knock or rattle I have checked everything I can think of but it sounds like it is coming form the bell housing. any help would be appreicated. thank you
2007-02-19 14:17:05 · 4 answers · asked by kyleworman 1 in Cars & Transportation ➔ Boats & Boating
it depends was it making this noise before you changed these parts or after, if it was after then somthing was put together wrong if not i would check to see if you either have a knock in your lower end of motor or just somthing loose rattling around, in the engine compartment of a boat noises can travel and throw you off of where its coming from so mabye try a stethascope to narrow down where its coming from.
2007-02-20 00:31:24 · answer #1 · answered by dan o 1 · 0⤊ 1⤋
if you look where the outdrive shaft goes throught the hull to the engine, you'll see a large round bearing...say 3-4 inches in diameter. it's called a gimbal bearing. replace it and keep it greased a couple of times a season & you won't hear that anymore. did you check the u-joints when you had it off before?
2007-02-20 00:49:24 · answer #2 · answered by Anonymous · 1⤊ 0⤋
Is it a Mercruiser or a Volvo? Exhaust anti-backflow flappers can cause a rattling sound, most notably at idle.
2007-02-20 22:37:14 · answer #3 · answered by Wally T 3 · 0⤊ 1⤋
check the out drive to engine alignment ,this requires a alignment tool.make sure everything has grease.
2007-02-20 00:32:58 · answer #4 · answered by bill r 1 · 1⤊ 0⤋