Hello!
I just recently bought a 1996 Bonneville SSEI, with 155K miles. Car is nice for the miles! No rust underneath. I have had many Bonnevilles over the years but first time for a supercharged one.
There is a distinct rattle sound in the area of the supercharger nose drive. In my research, I've seen it described as rocks or gravel rolling around. This is the sound. Only at idle and more noticeable when warmed up. If I put my hand on the nose, I can feel like a knock inside, but I realize that could be transferring from something else. Also, when I shut the engine off, I hear the tumbling rock sound as the engine stops.
Could this be the coupler? Would it make that sound as the engine is shut off? Or should I be looking for something else?
The engine, otherwise, runs very well!
I haven't pulled the belt yet to check it, but that will be my next step.
Any info. will be appreciated!
Thanks!
Mark
1996 Bonneville SSEi supercharger noise?
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J Wikoff
- Administrator
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- Year and Trim: 1992 SSE
2009 G8 GT - Location: Central Illinois
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Re: 1996 Bonneville SSEi supercharger noise?
Pretty sure it's the coupler. Also be prepared to feel some grinding in the bearings of the nose.
WHITE WHINE - 1992 SSE Supercharged 236.26 ci (.040 Over) 15.090 at 90.2 MPH on old engine w/ slipping trans & melted O2 sensor - Gen 3 M62 and matching TB, Gen 2 Pully, Zillamotorsports Ported LIM, YT 1.72 Roller Rockers, SII FPR & Injectors, Hypertech Thermomaster chip w/ 160 Thermo, TransGo Shift Kit, Infinity/Pioneer Speakers & a 10" Alpine Type R Sub, all the watts, 140 amp Alternator, Ricepipe CAI w/ heatshield, Pilot Angel Eye Foglights, Clear Corners, '02 17" Chrome Bent 5's, Magnaflow F-Body Muffler and Hi-flo Cat, Ceramic Coated Ported Exhaust Manifolds, Fan Override, Monroe Reflex struts, red calipers
2009 G8 GT - Sport Red Metallic, loaded, SOLO Axlebacks, Rotofab Intake, Tuned, autodim mirror, removed intake manifold cover, HSV GTS triple gauge pod, two tone red-hot shifter and HSV SuperSport steering wheel, GXP rear sway bar and diffuser, 3.45 diff and various Camaro suspension bits, LED Taillights
Re: 1996 Bonneville SSEi supercharger noise?
Thanks John! If this is the case, will this cause damage to the rest of the supercharger body? or will a nose drive re-build/replace work... or replace entire supercharger unit? Gonna pull belt in the next couple days and go from there.J Wikoff wrote:Pretty sure it's the coupler. Also be prepared to feel some grinding in the bearings of the nose.
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J Wikoff
- Administrator
- Posts: 17080
- Joined: Mon May 19, 2008 7:01 pm
- Year and Trim: 1992 SSE
2009 G8 GT - Location: Central Illinois
- Contact:
Re: 1996 Bonneville SSEi supercharger noise?
If you can get a nose with good bearings, that would probably be cheapest as far as time+money goes. Assuming yours does need work. I wouldn't wait too long, but it isn't likely to catastrophically die soon.
WHITE WHINE - 1992 SSE Supercharged 236.26 ci (.040 Over) 15.090 at 90.2 MPH on old engine w/ slipping trans & melted O2 sensor - Gen 3 M62 and matching TB, Gen 2 Pully, Zillamotorsports Ported LIM, YT 1.72 Roller Rockers, SII FPR & Injectors, Hypertech Thermomaster chip w/ 160 Thermo, TransGo Shift Kit, Infinity/Pioneer Speakers & a 10" Alpine Type R Sub, all the watts, 140 amp Alternator, Ricepipe CAI w/ heatshield, Pilot Angel Eye Foglights, Clear Corners, '02 17" Chrome Bent 5's, Magnaflow F-Body Muffler and Hi-flo Cat, Ceramic Coated Ported Exhaust Manifolds, Fan Override, Monroe Reflex struts, red calipers
2009 G8 GT - Sport Red Metallic, loaded, SOLO Axlebacks, Rotofab Intake, Tuned, autodim mirror, removed intake manifold cover, HSV GTS triple gauge pod, two tone red-hot shifter and HSV SuperSport steering wheel, GXP rear sway bar and diffuser, 3.45 diff and various Camaro suspension bits, LED Taillights