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Join Date: May 2019
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'99 1100S rear seal tips

Just bought a 99 1100s to keep my 2000 1100rt company in the garage. Bought it with a known bad engine seal. I have a Haynes manual for it to help but any tips would be welcomed.
Old 05-14-2019, 06:52 PM
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Unlike most other oilheads you need to remove the big silver frame piece. The centerstand comes with it so you need to figure out some way to support the front half of the bike. I jacked it up then slid a kitchen chair under each cylinder. Mrs. Moore was somewhat nonplussed but it worked pretty well.
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Jim Moore
Jax, FL
'01 R1100S
'07 CBR600RR
Old 05-15-2019, 02:04 AM
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unsafe at any speed
 
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Join Date: Dec 2003
Location: Arkansas
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If it is the rear main seal there are actually two seals, an inner and an outer with a space between them for the crankcase vent. They are a single lip seal with no spring like most seals have. The lip has to be forced inward when installed.
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Bill Swartzwelder
2002 R1100S Prep/2006 BMW R1200GS
1969 BSA StarFire
Old 05-15-2019, 11:18 AM
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see this

Flattbutt in Arkansas thread

Hey Bill, bet you never thought that thread would be so useful.
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'99R1100SA DDP of course
'12 M1100 mostro rosso

Old bikers don't get old by accident
equito ergo sum
Old 05-15-2019, 04:11 PM
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Brent
 
Join Date: Dec 2012
Location: santa cruz
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Garage
I have one of the bmw bolt to the motor lifts it works well, but any motorcycle lift under
the motor works lots of prior threads on clutch removal here,
the seals are a bit annoying you need to find something about the size of the two seal surfaces
to pre form the stock seals and quickly fit them and press them into the corrrect depth
the inner one seats all the way in the outer flush with the rear housing
there are special tools for all of this I use a aluminum coke can cut in half it works and is about
the correct size
Old 05-15-2019, 10:34 PM
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I saw a creative man use a yogurt cup for the seal fitting.
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'99R1100SA DDP of course
'12 M1100 mostro rosso

Old bikers don't get old by accident
equito ergo sum
Old 05-16-2019, 06:30 AM
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Thanks alot. You are great!
Old 05-16-2019, 10:06 AM
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unsafe at any speed
 
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Quote:
Originally Posted by flatbutt View Post
see this

Flattbutt in Arkansas thread

Hey Bill, bet you never thought that thread would be so useful.
I am only in it for the fun Tom...
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Bill Swartzwelder
2002 R1100S Prep/2006 BMW R1200GS
1969 BSA StarFire
Old 05-16-2019, 01:20 PM
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Check page 3-

Clutch splines
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RBMann- The road is his workshop, and his trips are opportunities to do much needed repairs. -Bill S.
* 2000 S, color-Salmon 100K+
* '17 Africa Twin* '09 F650GS twin-sold
* '83 GPZ 550-gone to a newbie * '75 CB400F-retired to AZ.
Old 05-16-2019, 01:46 PM
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