D-Jet Issues-getting close, Need a little more specific advice |
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D-Jet Issues-getting close, Need a little more specific advice |
OU8AVW |
Mar 16 2015, 09:17 AM
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#1
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Yacht Rigger Group: Members Posts: 1,803 Joined: 1-October 08 From: Granbury, TX Member No.: 9,601 Region Association: Southwest Region |
So I got my car back from the local Porsche shop and installed a rebuilt MPS from Bowlsby but the car is still not running right. Flat spots and intermittent dead fire misses. She starts right up, idles well and drives ok but when you get on it it has intermittent flat spots and when shes just cruising it misses once and a while. Seems like the advance is not ramping up like it should. Also, the mechanic left a vacuum line off the distributor. The line from the inboard connection on the pot is hooked up but the outside one is off. I understand that one of these is advance and one is retard.
Just need a list of crap to check (IMG:style_emoticons/default/biggrin.gif) |
OU8AVW |
Aug 28 2015, 09:01 AM
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#2
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Yacht Rigger Group: Members Posts: 1,803 Joined: 1-October 08 From: Granbury, TX Member No.: 9,601 Region Association: Southwest Region |
Ok, so I'm getting really close.
Valves were adjusted poorly, set them to (almost) zero lash per Raby spec. New fuel pump with pressure meter installed and adjusted to 29psi (it was at 40!) Set the new TPS correctly Please tell me the o2 numbers I'm looking for on my LM2. I think I'm still a little rich at idle and part load 10.5-12.4 And lean at full load 13.8-15 I saw somewhere that 12.7 was a sweet spot? Car runs good. Gets a bit lean sounding when I get on it hard and wants to die when I drop RPM for a stop. |
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