TodB
Well-Known Member
Along with the spring, what is the correct method to install the BB so that it gets positioned correctly? Is it’s purpose to plug some sort of valve to prevent oil loss from the bore when the engine is off?
The “BB” inside the timing chain tensioner bore
- Thread starter TodB
- Start date
TodB
Well-Known Member
Hoping for some guidance on this. Am I over thinking it?
Look carefully at the picture of the replacement spring shown by Walloth&Nesch
now go throw that bb away.
now go throw that bb away.
The problem starts with the BMW picture-
Early and late engines use the same part but a different picture than the one above...
Early and late engines use the same part but a different picture than the one above...
RealOEM.com - Online BMW Parts Catalog
BMW parts 5' E28 535i Timing and valve train-timing chain
www.realoem.com
TodB
Well-Known Member
Don, that was the picture I was looking at as my motor is a 5/633i vintage. To me, it doesn’t look like the BB does anything so I did not install it with the new spring and seal washer.
My leak source ended up being from the upper timing cover seal. It was leaking down around the view seal washer so that’s why I (hoped and) changed that out first.
My leak source ended up being from the upper timing cover seal. It was leaking down around the view seal washer so that’s why I (hoped and) changed that out first.