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Join Date: Nov 2005
Location: KY, USA
Posts: 343
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Manual Tranny Pinion Bearing
As I mentioned several months ago, I have a clunking when I push the gas and then let it off, I had my someone test drive it and the think its the pinion bearing... also when you go over a hill and let off the gas while in gear, and let it hold back, it makes a kinda whine sound from the tranny... I was told the ring and pinion gears were trying to "pass" each other, is there a way I can put new bearings in it myself?... is there a way I can check the bearings myself?.. an access plate maybe?
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1987 Porsche 944 1971 Porsche 911E..(It went home,Germany!) 1969 Porsche 912 1964 Porsche 356c..(roller) 1988 Porsche 924S (PARTS CAR) |
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11-06-2007, 11:12 AM
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Anybody have an answer here? I'm thinking I have the same problem.
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70 911T 71 914 89 BMW R100GS |
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12-01-2007, 09:14 PM
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Clunking? No. Could be CVs.
Whining, yes pinion and ring gear bearings. To change the carrier bearings, easy. Drop the tranny. To change pinion bearings, not a home diy. Need tools, tools, special tools. Find a used low mileage tranny, best option.
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1993 964 C2 still makes me smile Retired and work as needed as a pain in the **s. |
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12-02-2007, 03:11 AM
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Join Date: Aug 2001
Location: Brighton UK since 11/2012
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If the "clunk" is when going on and off the power, the first thing to look for is the clutch rubber center. Remove the rubber plug at the trans front housing, set trans in neutral, grasp the torque tube and try to rotate it.
If it does you need a need a new clutch. If it doesn't look at the trans and cv joints.
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From November 2012; Precision Porsche Specialist Sussex UK, +44 (0)1825-721-205 2001-2012 Gerber Motorsport Inc. 206-352-6911 07.15.06 1996 Ducati 900SP. Suprisingly enough, it's red 08.16.09 1999 Kawasaki ZRX1100. Green. |
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12-02-2007, 12:04 PM
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winter-hater club member
Join Date: Oct 2003
Location: salt lake city, utah
Posts: 24,705
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i didn't realize the torque tube itself would rotate. i thought it was anchored at the bellhousing and the transaxle.
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2000 Corvette - ????, 2007 Buell XB9R - Astrid, 1996 Discovery - Piglet, 2000 Forester "COOL PRIUS!" - Nobody Ever |
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12-02-2007, 01:34 PM
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In my situation it's definately in the transmission. I'm pulling it out to replace the clutch here in the next week. I think driving it so long with the clutch rubber jacked up, put unnecessary stress on the pinion bearing. The constant clunking from on gas to off. My CVs are fine. What I hear is the whine of a bearing. Sounds like a dump truck if you know what I mean.
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70 911T 71 914 89 BMW R100GS |
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12-02-2007, 01:43 PM
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Location: Brighton UK since 11/2012
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Nynor:
The torque tube driveshaft rotates, the outer tube doesn't. if you drove the 944 with a broken rubber center, that may only be the noise, as the metal tabs in the clutch try and go over each other.
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From November 2012; Precision Porsche Specialist Sussex UK, +44 (0)1825-721-205 2001-2012 Gerber Motorsport Inc. 206-352-6911 07.15.06 1996 Ducati 900SP. Suprisingly enough, it's red 08.16.09 1999 Kawasaki ZRX1100. Green. |
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12-02-2007, 01:59 PM
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Politically Incorrect
Join Date: Aug 2005
Location: Hoover, Alabama
Posts: 1,497
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Quote:
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Edek '87 924S '91 535i |
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12-03-2007, 03:14 PM
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winter-hater club member
Join Date: Oct 2003
Location: salt lake city, utah
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right. thanks for the clarification!
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2000 Corvette - ????, 2007 Buell XB9R - Astrid, 1996 Discovery - Piglet, 2000 Forester "COOL PRIUS!" - Nobody Ever |
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12-03-2007, 04:20 PM
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911
