squeal on start-up



squeal on start-up

Postby grumpyvette » March 10th, 2015, 5:16 pm

grasshopper wrote:I get a constant churp/squeal only on cold startup, its very loud and disappears after warmup. I poured some water over the belt while its running and the sound instantly disappears (for a while)

Is it safe for me to just go ahead and replace the belt? Is there anything else I should check/bear in mind while doing it? The belt doesn't look particularly warn but its prob the factory belt and I didn't have a thorough look

Cheers


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YOUR ACCESSORY DRIVE FAN BELT MAY BE WORN OR LOOSE or THE ALTERNATOR , EMISSIONS AIR PUMP< POWER STEERING PUMP,BELT TENSION,IDLER PULLEY,,OR WATER PUMP BEARINGS COULD BE WELL WORN, the source should be located with a bit of testing, ( be sure its not a vacuum leak your hearing btw,) as that can at times sound similar, I had a very similar situation, with my 1996 corvette having a high pitch squeak on cold starts, it was obviously from the area in the engine front, and because I had wanted a 200 amp alternator anyway to boost the ignition and cooling fans , I replaced the factory alternator, the result was that both the ignition and cooling fans worked noticeably better but the squeak on start up did not go away as expected, so checking further lead me to replace the water pump which cured that issue. Id suggest removing the belt and spinning each individual accessory wheel by hand, feel for bad bearings, the belt tension may have caused un-even wear. idler pulleys and alternators are always suspect, and power steering pumps and emission air pumps are not far behind in failing

http://www.dbelectrical.com/p-9527-alte ... 7AodKlUASg

viewtopic.php?f=80&t=10723&p=47422&hilit=water+pump+corvette#p47422

viewtopic.php?f=36&t=3222&p=46703&hilit=corvette+alternator#p46703

viewtopic.php?f=32&t=258&p=313&hilit=wheel+fabricate#p313
IF YOU CAN,T SMOKE THE TIRES AT WILL,FROM A 60 MPH ROLLING START YOUR ENGINE NEEDS MORE WORK!!"!
IF YOU CAN , YOU NEED BETTER TIRES AND YOUR SUSPENSION NEEDS MORE WORK!!
grumpyvette

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