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Replacing large left seal in rear drive, '81 R100
Posted: Mon Apr 18, 2016 12:35 pm
by itsme
To replace the seal, does the cover need to come off? Any special tricks? Regular tools sufficient?
Re: Replacing large left seal in rear drive, '81 R100
Posted: Mon Apr 18, 2016 1:45 pm
by Bamboo812
Wrap the splines with electrical tape or similar to avoid damaging the new seal when installing.
Re: Replacing large left seal in rear drive, '81 R100
Posted: Mon Apr 18, 2016 2:27 pm
by itsme
Bamboo812 wrote:Wrap the splines with electrical tape or similar to avoid damaging the new seal when installing.
Great idea, thanks!
Re: Replacing large left seal in rear drive, '81 R100
Posted: Mon Apr 18, 2016 3:29 pm
by itsme
old seal is out, need to clean now.
Re: Replacing large left seal in rear drive, '81 R100
Posted: Mon May 09, 2016 6:38 pm
by mattcfish
A Ranier beer can with the ends cut off fits perfectly over the splines too.
You should remove the cover and replace the gasket. It comes off easily...you thread in 2 screws to pull it off, there are threaded holes provided for this purpose.
Re: Replacing large left seal in rear drive, '81 R100
Posted: Tue May 10, 2016 10:08 am
by montmil
mattcfish wrote:A Ranier beer can with the ends cut off fits perfectly over the splines too.
You should remove the cover and replace the gasket. It comes off easily...you thread in 2 screws to pull it off, there are threaded holes provided for this purpose.
Most first-timers miss the two threaded holes that assist in removing the Cardan cover. 5mm, IIRC.
I've successfully used a trimmed aluminum adult barley beverage can as a seal/spline install tool. The rounded punt/bottom of the can gets the seal's lip properly positioned. Be sure to smooth the cut edge of the can as even a small burr can ruin the seal's fragile lip as you remove the "special tool". Plus, oil to can to aid in a smoother install.
That and don't forget the gasket!
Monte
Re: Replacing large left seal in rear drive, '81 R100
Posted: Tue May 10, 2016 2:00 pm
by Bamboo812
Modern cardan gaskets are thicker now than the original paper thin ones. Replacing it will most likely require re-shimming.
Re: Replacing large left seal in rear drive, '81 R100
Posted: Tue May 10, 2016 5:20 pm
by SteveD
Bamboo812 wrote:Modern cardan gaskets are thicker now than the original paper thin ones. Replacing it will most likely require re-shimming.
Is a modern gasket in a tube out of the question?
https://www.threebond.co.jp/en/technica ... skets.html
Re: Replacing large left seal in rear drive, '81 R100
Posted: Tue May 10, 2016 7:16 pm
by Bamboo812
Not out of the question; paper gaskets went the way of sword fighting awhile back. In this case though, taking either new or old gasket out of the question still requires re-shimming...
Re: Replacing large left seal in rear drive, '81 R100
Posted: Wed May 11, 2016 11:18 am
by enigmaT120
Bummer. I'm really good at sword fighting.
But I can't make paper gaskets seal.
