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CPS Chronic Issue 900 1993

posted by  B.B. on  Wed Jul 24 15:41 CST 2024
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last visit: Mon Oct 6 13:15 CST 2014
[RELATED]

Hi Phil,

The 700/900 B230F/FT use the Bosch 16 MAF up to 1993 according to the Pocket data book. Get 2.5 - 4.0 ohms between pins 2 & 3.
There's a trim pot inside some of them, and the one spare AMM I tried to get apart to find the trim pot was corroded and resisted coming apart. Which reminds me to put a few more drops of mystery oil on those screws. A long soak is better than stripping the heads of the screws eh?

I found a reference to the CPS flywheel drive plate that Porkface mentioned.
It's easily damaged and its possible to install it wrong.
Volvo says there's a 1.0 MM +- 0.5MM clearance between the tip of the CPS
and the flywheel set of holes/teeth. The CPS needs to be at right angles, and too big a gap is inviting headaches.
How would you confirm the proper clearance?
What's the part number of the drive plate? I'd like to look up the parts drawing to see what it looks like. Can it be replaced with the engine in place?
If it's so fragile, can it be tweaked to restore the right angle position to the flyweel?

I wonder why AG hasn't posted back, it's easy enough to re-seat the power stage connector a few times and see if things improve.

Keep cool, Bill






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