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PostPosted: Wed Sep 24, 2008 11:21 pm 
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Howdy. Newb to the site

Few questions. Could boost from the lobe housing somehow have found its way into the snout?

I was doing some fuel tuning (MegaSquirt) the other day. I was in the top of 3rd gear at about 14psi and I almost instantly went from boost to full vac on my gauge. I pulled over assuming I lost the belt, pop'd the hood and oil was all over my belts, hood, and even my wheel's inside.

I tracked the the oil to being from the blower. It leaks from the snout only when turning.

On the drive home she would only build about 8psi. Is this most likely from an oil coverd slippy belt? Or is this sudden seal failure related to the boost loss other than slicking up the belt?

Regardless I orderd a snout rebuild kit from rolling performance. I havent removed the blower yet but Iam fearing the worst. Atleast Ill have a rebuild kit if I end up buying another M62.


Last edited by 6sic6 on Wed Sep 24, 2008 11:22 pm, edited 1 time in total.

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PostPosted: Wed Sep 24, 2008 11:23 pm 
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which end of the snout?

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PostPosted: Wed Sep 24, 2008 11:23 pm 
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Sry, pulley side


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PostPosted: Wed Sep 24, 2008 11:37 pm 
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I'd guess it's just from belt slip. You'll probably want a new belt.

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WHITE WHINE - IT'S INTOXICATING. 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, Easy Performance Gen 3 Air/Fuel Calibrator, Hypertech Thermomaster chip w/ 160 Thermo, TransGo Shift Kit, Infinity/Pioneer Speakers and 10" Subs, 1300 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, McCoy Motorsports Ceramic Coated Ported Exhaust Manifolds, Fan Override, PowerSlot Slotted Rotors.
2009 G8 GT - Sport Red Metallic, loaded, SOLO Axlebacks, Rotofab Intake, Tuned, autodim Trailblazer 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


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PostPosted: Fri Sep 26, 2008 12:16 am 
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Could boost have somehow got into the nosedrive?


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PostPosted: Fri Sep 26, 2008 9:20 am 
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You'd have to have a rotor plate bearing failure of some sort. If yours still turns fine, I doubt it's a problem.

If there's rotational play in the pulley, you'll need a coupler, by the way. If there's no wobbling, grinding, or play, you may just need a new nosedrive shaft seal. There's two kinds, nitrile and viton. I'd get the cheaper of the two. It seems to "seat" better and won't leak as much off the bat.

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WHITE WHINE - IT'S INTOXICATING. 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, Easy Performance Gen 3 Air/Fuel Calibrator, Hypertech Thermomaster chip w/ 160 Thermo, TransGo Shift Kit, Infinity/Pioneer Speakers and 10" Subs, 1300 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, McCoy Motorsports Ceramic Coated Ported Exhaust Manifolds, Fan Override, PowerSlot Slotted Rotors.
2009 G8 GT - Sport Red Metallic, loaded, SOLO Axlebacks, Rotofab Intake, Tuned, autodim Trailblazer 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


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PostPosted: Fri Sep 26, 2008 10:48 am 
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J Wikoff wrote:
You'd have to have a rotor plate bearing failure of some sort. If yours still turns fine, I doubt it's a problem.

If there's rotational play in the pulley, you'll need a coupler, by the way. If there's no wobbling, grinding, or play, you may just need a new nosedrive shaft seal. There's two kinds, nitrile and viton. I'd get the cheaper of the two. It seems to "seat" better and won't leak as much off the bat.


*dang*, I have a rebuld kit with the "Viton" seal on the way.


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PostPosted: Fri Sep 26, 2008 10:54 am 
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Well, give it a shot. Just because it didn't work for me and a few others, doesn't mean it'll fail you.

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WHITE WHINE - IT'S INTOXICATING. 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, Easy Performance Gen 3 Air/Fuel Calibrator, Hypertech Thermomaster chip w/ 160 Thermo, TransGo Shift Kit, Infinity/Pioneer Speakers and 10" Subs, 1300 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, McCoy Motorsports Ceramic Coated Ported Exhaust Manifolds, Fan Override, PowerSlot Slotted Rotors.
2009 G8 GT - Sport Red Metallic, loaded, SOLO Axlebacks, Rotofab Intake, Tuned, autodim Trailblazer 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


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PostPosted: Fri Sep 26, 2008 1:17 pm 
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Shes full of metal paste. I drained the fluid today. Clumpy and metalic.


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PostPosted: Fri Sep 26, 2008 1:23 pm 
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That sounds like bearing failure. If the goo got to the seal, it could tear it and leak. Hope it's the nose drive bearings and not the rotor plate bearings. Those are impractical to replace.

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WHITE WHINE - IT'S INTOXICATING. 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, Easy Performance Gen 3 Air/Fuel Calibrator, Hypertech Thermomaster chip w/ 160 Thermo, TransGo Shift Kit, Infinity/Pioneer Speakers and 10" Subs, 1300 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, McCoy Motorsports Ceramic Coated Ported Exhaust Manifolds, Fan Override, PowerSlot Slotted Rotors.
2009 G8 GT - Sport Red Metallic, loaded, SOLO Axlebacks, Rotofab Intake, Tuned, autodim Trailblazer 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


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PostPosted: Fri Sep 26, 2008 1:43 pm 
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Its weird. Everything turns fine. No binding or noises. Ive never changed rotor bearings before. These bearings now arent that old. I changed them along with the coupler and snout seal about a year ago and prob only 1k miles.


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