496 HO Belt Squeal
#1
Registered
Thread Starter
496 HO Belt Squeal
Squeal, Squeak, Whine ...whatever. That's what I'm hearing from my new motor. More pronounced at higher rpms, the sound comes through the engine box. Only 2 hours on the engine. Has anyone else ran into this????
#2
Platinum Member
Platinum Member
120 hours here and not one sound from the belt. I would suspect that there is some kind of pulley misalignment going on with your set-up. That could really degregate the life of your belt.
#3
i have 496 mags andI had something similar that i thought was the belt. it ended being the air being sucked into the air filter/flame arrestor at about 2500 rpms and then stopped in the low 3000s rpm. A reccomendation i got for this was replacing the stock air filters with K&N brand. i haven't done it yet but it is on my list of things to do.
if you do it. let us know if it worked!
good luck
if you do it. let us know if it worked!
good luck
#4
Registered
Thread Starter
I'm taking the boat out for a few hours today - I'll check it out at those rpm's, and inspect the belt to see if it's showing signs of wear. Thanks guys...
#5
Registered
Thread Starter
Yup, the 496 HO sucks - AIR. At idle, the belt drive makes that "scrunchy" sound which suggested it might squeal at higher speeds. A few runs with the motor box open proved that was not the case. It's definitely the flame arrestor. Good news is, the noise bothers my wife, so she may insist on the K&N fix.
#10
OSO Moderator
Charter Member
496's will not gain any more power or speed from a K&N, the stock flame arrestor flows real good. Now you WILL get clean air in the motor. All the belt dust will be caught in the filter vs. ingested in your motor.
BTW: My belts never squeeked, but DO throw alot of dust. Even after 62 hours.
BTW: My belts never squeeked, but DO throw alot of dust. Even after 62 hours.
__________________
BillR
'00 Scarab Sport 302 CC
'02 Cigarette Top Gun TS
'02 PQ 340
'00 PQ 280
'98 Scarab 22
'97 Baja Outlaw 20
'72 Checkmate
'65 Glastron
BillR
'00 Scarab Sport 302 CC
'02 Cigarette Top Gun TS
'02 PQ 340
'00 PQ 280
'98 Scarab 22
'97 Baja Outlaw 20
'72 Checkmate
'65 Glastron
Thread
Thread Starter
Forum
Replies
Last Post
fountain27ho496
General Boating Discussion
7
07-15-2008 09:35 AM