speed & reference sensor mounting
 

a small part of the block has broken away around the bolt hole for the bolt that goes through the round hole in the sensor mounting bracket. I have a new "tensioning sleeve" as Porsche calls the split sleeve that goes around this bolt. Should this sleeve be fitted into the bracket or into the block?

Or can I just dispense with this sleeve altogether?

No, keep the sleeve.
The tensioning sleeve is the pivot for the reference sensor bracket/reference sensors to get the accurate gap.

Can you put the tensioning sleeve in the block and fill the missing area with a steel epoxy paste or is the engine block hole for the sleeve damaged beyond repair (too big)?

http://forums.pelicanparts.com/uploa...1349181363.jpg

GL
John

The problem is that the hole still has thread at the bottom but it doesn't compress the tensioning sleeve tightly enough to be able to fit the sensor bracket hole over it. I had to compress the sleeve quite a lot to get it into the bracket hole There is some of the sleeve still protruding from the bottom of the bracket hole so can I just install it thus and then put grease(as a mould release) on the sleeve and bracket bottom face and fill in the gap with JB Weld or similar?

This is a picture of the sensor bracket and tensioning sleeve--normal.

http://forums.pelicanparts.com/uploa...1349197776.jpg


Here is a picture of the rear engine and sensor bracket installed (with TDC sensor).

http://forums.pelicanparts.com/uploa...1349197946.jpg

Trying to understand...
You have only a couple of threads left in the block for the bolt that passes through the tensioning sleeve into the block and tightens the sensor bracket to the block.

Have you tried a slightly longer bolt?

The normal repair is to use a thread repair-heli coil. You might have enough room if your hands and fingers are real tiny.

If the threaded hole has a piece missing--chipped off ---using a steel putty may not hold or may prevent accurate movement of the sensor bracket and alignment for the proper sensor gap.

Decisions ???

GL
John

Had the same issue with the same bolt. In my case there were enough threads remaining in the block that the bolt would tighten properly. I just put a new sleeve in the bracket and everything bolted in as it should. So far... no problems.

Thanks guys-will try this Sunday