I had to remove the rear cover of my r75/5 transmission in order to retighten one of the shift fork pivot bolts. I cleaned the two surfaces and used a new gasket but upon reassembly and installation it now leaks at the gasket. The cover and transmission gasket surfaces looked good but the last person who worked on it had used a gasket sealant on the gasket when reassembled. I hate to use it but I dislike oil leaks more so I'm going to take it out and redo it with gasket sealant. Any recommendation for this type of application. Thanks
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r75/5 transmission rear cover
- Thread starter jbarneshb
- Start date
Are you familiar with BMW motorcycle transmissions? Once you took that rear cover off everything changed, especially the shimming and clearances. If you aren't completely sure what you are doing, stop NOW before you do some expensive and possibly fatal damage.
I would suggest reaching out to the Airheads Beemer Club, www.airheads.org for some assistance. California is home to many highly skilled airheads willing to share their knowledge and help. And you will find a neat group to ride with and participate in many activities. Club founder lives in San Diego area, but we are international in scope.
Friedle
ABC BoD
I would suggest reaching out to the Airheads Beemer Club, www.airheads.org for some assistance. California is home to many highly skilled airheads willing to share their knowledge and help. And you will find a neat group to ride with and participate in many activities. Club founder lives in San Diego area, but we are international in scope.
Friedle
ABC BoD
I'd echo what Friedle said. With a different type of sealant used now, that will change some of the dimensions.
But if you want to try a sealant, I'd probably use the same thing that is used on the cylinder base during a top end overhaul. Things like Hylomar, Permatex Ultra Gray, Dreibond, etc.
But if you want to try a sealant, I'd probably use the same thing that is used on the cylinder base during a top end overhaul. Things like Hylomar, Permatex Ultra Gray, Dreibond, etc.
Make sure both surfaces are clean and flat. Best to warm the cover some, 200 deg is fine. I normally put the cover on with a dry gasket but is sealant is needed use Gaskacinch. Available at auto parts stores. If you still have a leak the cover is not flat.
