Does the cam make a sound?
01-01-2009, 04:50 PM
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Car: 1989 Firebird Formula 350
Engine: 350 TPI
Transmission: 700R4
Axle/Gears: 9 Bolt Borg Warner 3.27 gears
Does the cam make a sound?
I was checking my pulleys today by removing the serpentine belt and spinning them by hand. While they all seemed ok, I started my engine up. I noticed the pulley for the cam was making a kind of medium "chugging" sound. Is this normal or is something amiss? Timing chain perhaps?
Ken
Ken
01-01-2009, 05:25 PM
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Car: 91RS, 91RS
Engine: 305TBI, 3.1MP
Transmission: WCT5, TH700
Re: Does the cam make a sound?
Pardon my dumb question, but...
Which pulley are you referring to as the "cam" pulley? You might also want to elaborate on this "chugging" sound. Like, compare it to something that we've all heard.
Max,
Which pulley are you referring to as the "cam" pulley? You might also want to elaborate on this "chugging" sound. Like, compare it to something that we've all heard.
Max,
01-01-2009, 06:08 PM
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Car: 1989 Firebird Formula 350
Engine: 350 TPI
Transmission: 700R4
Axle/Gears: 9 Bolt Borg Warner 3.27 gears
Re: Does the cam make a sound?
Well the pulley I'm talking about is the one right there at timing marks. The one on the very bottom of the engine. The sound is more like an small exhaust leak. Kinda a hollow sound.
Ken
Ken
01-01-2009, 06:54 PM
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Car: 1990 Camaro
Engine: 3.1 V6
Transmission: 700R4
Re: Does the cam make a sound?
Depending on the noise which will be hard for any of us to really fully know it could be the plastic timing chain guide.
On my 3.1 I had that guide break which is right behind the timing chain cover around the area your talking about. It sounded bad and might go with the sound your refering to.
On my 3.1 I had that guide break which is right behind the timing chain cover around the area your talking about. It sounded bad and might go with the sound your refering to.
01-01-2009, 07:02 PM
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Car: 88 IROC, 76 Malibu Classic
Engine: 350 TPI, 350
Transmission: 700R4, 4-speed
Axle/Gears: 10 bolt ????
Re: Does the cam make a sound?
^if thats the case get a new timing chain while your at it. thats what happened to my cars original engine. it wore off the damper at first then skipped timing.
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