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914World.com _ 914World Garage _ MPS Certificate

Posted by: MarkV Jul 9 2003, 08:42 PM

I just got my wiring harness & MPS back from Jeff Bowlsby. Jeff tested my MPS & made some repairs to my harness. Jeff did a great job on the harness.

The MPS passed all of the tests except for the leak down test. The standard leak down is from 40 cm/Hg in 4 minutes, mine leaked down in less than 2 minutes. I was wondering if I should take it apart to try to fix the leak, or just run it. It's a sealed MPS that appears to be a rebuild.

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Posted by: ChrisReale Jul 9 2003, 10:40 PM

I would not mess with it. All it will do is run rich, and in your case, not too bad.

Posted by: Bleyseng Jul 10 2003, 08:13 AM

Which looks like that might be good to run rich cuz the calibration is a little lean for my taste.

Geoff

Posted by: MarkV Jul 10 2003, 02:52 PM

QUOTE(Bleyseng @ Jul 10 2003, 06:13 AM)

Which looks like that might be good to run rich cuz the calibration is a little lean for my taste.

Geoff

Too lean to run on a stock cam 2056??

Posted by: Lawrence914-6 Jul 10 2003, 04:01 PM

QUOTE

Ok, I give away the secret settings here
For a 2056cc you need at 0hg (WOT) about 1.50 -1.55
At 4hg (partload ) you need 1.26-1.28
At 15hg (idle) you need .74-.77
This gives you the proper A/F mix at partload about 13.7 to 1
and at WOT about 12.5 to 1
Write it down cuz this message will self destruct in 12hrs.

Geoff

Saved for posterity.

Posted by: MarkV Jul 10 2003, 04:04 PM

So Geoff, can I send it to you? For a fee of course.

Posted by: Bleyseng Jul 10 2003, 04:08 PM

Yeah, I can adjust it for you.

Rusty, thanks alot!!! I would prefer not to leave this up