I had the cylinders vapor blasted. In preparation, I removed the push rod tubes. After they were vapor blasted I install new stainless steel pushrod tubes I got from Euro MotoElectrics, who graciously has agreed to provide the parts for this charity rebuild project for free. I will auction this bike and proceeds will go to the Motorcycle Relief Project.
I have done this work before on my 1983 R100RS rebuild and will reference material from the documentation of that build as appropriate.
- 11 BMW 1983 R100RS Remove Push Rod Tubes & Head Studs
- 11 BMW 1983 R100RS Install Push Rod Tubes & Head Studs
Here is what I started with before vapor blasting the cylinders and replacing the push rod tubes.
Here is a link to the documentation and a short YouTube video summarizing the procedure.
VIDEO: 1983 BMW R80ST Replace Push Rod Tubes
This is the final result.