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General Category => General Discussion => Topic started by: ozarquebus on February 21, 2020, 06:54:42 PM

Title: BMW R100/7 Transmission Mechanic Needed
Post by: ozarquebus on February 21, 2020, 06:54:42 PM
Who is a good mechanic to send a R100/7 5-speed transmission in the Mid West to Mid South USA?
Title: Re: BMW R100/7 Transmission Mechanic Needed
Post by: ohiorider on February 21, 2020, 07:17:04 PM
Who is a good mechanic to send a R100/7 5-speed transmission in the Mid West to Mid South USA?
Check Tom Cutter's web site.  He's in PA.
http://rubberchickenracinggarage.com/

Might also google Matthew Parkhouse BMW.  He and Tom Cutter are both experienced at tranny repairs and rebuilds, and both know how to correctly machine the groove in the output shaft so the circlip BMW decided to quit installing on some series of the airheads can be installed.  Fifth gear is helical, and under heavy throttle, tends to put a side load on the output shaft bearing (causing premature bearing failure.)  The circlip keeps this from happening.

I'd talk with both of them.

BTW is their physical location critical?  I thought you'd be mailing your tranny to them
Title: Re: BMW R100/7 Transmission Mechanic Needed
Post by: ozarquebus on February 21, 2020, 07:25:14 PM
Ohiorider,
 Location is not absolutely important, but the option to drop it off and pick it up would be nice from Missouri. It would make a good excuse for a road trip especially if I strapped it to the Guzzi. (when I get it get back on the road)
Title: Re: BMW R100/7 Transmission Mechanic Needed
Post by: oldbike54 on February 21, 2020, 10:30:55 PM
 That generation of beemer 5 speed is pretty tough , what is wrong with it ?

 Dusty
Title: Re: BMW R100/7 Transmission Mechanic Needed
Post by: wirespokes on February 22, 2020, 12:13:13 AM
I'm pretty familiar with those transmissions. Yes, Matt in the Denver area is a good possibility, but there may be someone locally to help you out. Like Dusty, I'm curious what the problem is. How many miles on it? Also, your transmission should have the circlip -it wasn't until the mid 80s they started leaving them out. Asking on the airhead list might find someone local to you.
Title: Re: BMW R100/7 Transmission Mechanic Needed
Post by: Two Checks on February 22, 2020, 02:23:57 AM
Dave Clark's Forever Endeavor Motorcycles in Pacific, MO. He's a former dealer mechanic.
abcbmw.com
Title: Re: BMW R100/7 Transmission Mechanic Needed
Post by: ohiorider on February 22, 2020, 08:02:40 AM
I'm pretty familiar with those transmissions. Yes, Matt in the Denver area is a good possibility, but there may be someone locally to help you out. Like Dusty, I'm curious what the problem is. How many miles on it? Also, your transmission should have the circlip -it wasn't until the mid 80s they started leaving them out. Asking on the airhead list might find someone local to you.
I'd forgotten that the circlip issue probably began after this bike was built.
Title: Re: BMW R100/7 Transmission Mechanic Needed
Post by: guzzisteve on February 22, 2020, 08:21:57 AM
Not too far, N.IL has Jim at Rose Farm. Knows them like back of his hand.           service@rosefarmclassics.com
Title: Re: BMW R100/7 Transmission Mechanic Needed
Post by: oldbike54 on February 22, 2020, 08:46:21 AM
I'd forgotten that the circlip issue probably began after this bike was built.

 1988 .

 Dusty
Title: Re: BMW R100/7 Transmission Mechanic Needed
Post by: ohiorider on February 22, 2020, 08:55:19 AM
1988 .

 Dusty
A shame.  For what?  A $1.35 clip and a few additional minutes having the groove machined into the output shaft?  My guy Jamie in the area doesn't do the circlip mod, but last time, (@156,000 miles) had him replace all bearings and shifter wear items.  Figured that repair would outlast me!
Title: Re: BMW R100/7 Transmission Mechanic Needed
Post by: arveno on February 22, 2020, 09:08:55 AM
http://largiader.com/

Title: Re: BMW R100/7 Transmission Mechanic Needed
Post by: ozarquebus on February 22, 2020, 11:21:13 AM
Dusty,
 It used to shift super smooth and fast, but I rode it home once with a broken clutch cable, shifting without clutch, and it has been very clunky shifting since. Syntehtic oil seemed to make it worse, but stiil same after putting dinosaur oil back in. Clutch cable adjustment makes no difference.
Added later. Miles appear to be 25,000
Title: Re: BMW R100/7 Transmission Mechanic Needed
Post by: ohiorider on February 22, 2020, 09:53:11 PM
Dusty,
 It used to shift super smooth and fast, but I rode it home once with a broken clutch cable, shifting without clutch, and it has been very clunky shifting since. Syntehtic oil seemed to make it worse, but stiil same after putting dinosaur oil back in. Clutch cable adjustment makes no difference.
Added later. Miles appear to be 25,000
I think you would almost have to describe the 'trip home' before anyone could make a judgement.  I've ridden a few long miles with no clutch cable, but if you were really abusing the tranny to make the bike move, you may have done some real damage.
Title: Re: BMW R100/7 Transmission Mechanic Needed
Post by: wrbix on February 22, 2020, 10:08:54 PM
Plamwerks.com in Hendersonville, NC. - the repair shop associated with Boxer2Valve and Wunderlich America.
I’m about to take two /7 final drives to them. They make a point that they do mail order component repair (believe they’ll ship you a crate). Check out their website.
Title: Re: BMW R100/7 Transmission Mechanic Needed
Post by: bodine99 on February 23, 2020, 09:16:12 AM
The Airhead-Old School Cool section on ADV rider forum as many of the Airhead pro techs there.
Title: Re: BMW R100/7 Transmission Mechanic Needed
Post by: ccoli on February 23, 2020, 10:50:42 AM
Rose Farm shut down last year. He got an offer on his building and his said it was time to retire. Jim is still around, but not accepting work AFAIK

Not too far, N.IL has Jim at Rose Farm. Knows them like back of his hand.           service@rosefarmclassics.com
Title: Re: BMW R100/7 Transmission Mechanic Needed
Post by: ozarquebus on February 23, 2020, 02:09:38 PM
 I only had to ride the R100 sidecar rig about a mile through residential streets with intersection every block. I rolled through all the stop signs, but had to make a couple of complete stops in neutral. It wasn't too bad except twice I had to drop it into gear at an idle while pushing along at walking pace.
Thanks for the responses
Title: Re: BMW R100/7 Transmission Mechanic Needed
Post by: ohiorider on February 24, 2020, 09:58:50 AM
I only had to ride the R100 sidecar rig about a mile through residential streets with intersection every block. I rolled through all the stop signs, but had to make a couple of complete stops in neutral. It wasn't too bad except twice I had to drop it into gear at an idle while pushing along at walking pace.
Thanks for the responses
Sounds like you took it as easy as possible on the tranny.
Title: Re: BMW R100/7 Transmission Mechanic Needed
Post by: Chuck in Indiana on February 24, 2020, 10:24:20 AM
Sounds like you took it as easy as possible on the tranny.
Quote
sidecar rig
I disagree.. :grin:
Title: Re: BMW R100/7 Transmission Mechanic Needed
Post by: GuzziDog54 on March 01, 2020, 03:04:42 PM
I know a guy who is a master at these transmissions. I mean he can make it shift better, he can increase the 5th gear ratio, it'll be better than new when he's done. I have forwarded him your post, I'm sure he'll contact you if he can take the job.
Title: Re: BMW R100/7 Transmission Mechanic Needed
Post by: ozarquebus on March 02, 2020, 08:38:55 AM
Thanks Guzzidog and for all who have answered.
Title: Re: BMW R100/7 Transmission Mechanic Needed
Post by: SPScottNT on March 02, 2020, 10:03:09 AM
Boxerworks in Watkinsville, GA
Can do the circlip mod.

Scott
Athens, GA
Title: Re: BMW R100/7 Transmission Mechanic Needed
Post by: arveno on March 02, 2020, 07:44:09 PM
Boxerworks in Watkinsville, GA
Can do the circlip mod.

Scott
Athens, GA
[/quot


100/7 had the c clip from the factory.