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CamB CamB is offline
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Join Date: Apr 2000
Location: Auckland, New Zealand
Posts: 5,111
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Timing? Am I dwelling on this too much

And the award for the worst ever thread title goes to..... Cam!

I promise this has Porsche content - earlier Porsches have points too.

I have what I consider to be weird timing in the BMW 2002. It has a pretty standard Bosch distributor (0 231 149 008 I think), and is running an MSD.

When I check the dwell, it might be:

- 54 deg at 1000rpm
- 60 deg by 3000rpm
- nearly 70 deg by 6000rpm

And hence I appear to get points bounce and an early trigger on the MSD rev limiter.

What is worn to cause this? Or is this normal?

I feel clueless! I had the car on (effectively) a hill climb (see my other post) and during those runs the dwell was waaaaay out (I had set it to specification of 62 deg at 1000rpm, so they were probably never closed (open? can't remember) at 5000-5500rpm.

And 5000rpm was it. Top speed of about 145kph. I fixed it for the drive home (but couldn't use it).
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1975 911S (in bits)
1969 911T (goes, but need fettling)
1973 BMW 2002tii (in bits, now with turbo)
Old 09-15-2002, 04:50 PM
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