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Registered
Join Date: Mar 2006
Location: Exton, PA
Posts: 103
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Starting problems after motor re-install
I just got the motor installed after oil leak fix and cam regrind. Cranked it over until got some oil pressure popped the fuel pump fuse in and the coil wire on. I have spark or at least I could hear the coil wire arcing to the motor mount bolt. The pump relay clicks and I will need to check if there is pressure, I can not hear it over the CD box buzzing. The cam is timed 2mm at TDC according to the grinders spec. I did get a little sputter after a lot of cranking and a pop occasionally. When it pops it almost stops cranking.
Now what?
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'80 SC 911 '67 Chevy SS Nova - Supercharged '99 GSXR track only, '99 Superhawk '05 Toy PU - daily driver |
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06-04-2006, 05:41 PM
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Registered
Join Date: Dec 1999
Location: TX USA
Posts: 9,804
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A CDI ignition system should NEVER be disabled by pulling the coil wire!!! You risk shorting out the coil between primary and secondary windings and burning out several components in the CDI unit!
Pull the 6-pin or 3-pin connector to disable the ignition during cranking ... Here are threads with a bit more info on testing CDI systems: 6-pin SC/Turbo CDI unit repair documentation History of Bosch CDI ... toubleshooting info, parts list changes, and schematics ...
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Warren Hall, Jr. 1973 911S Targa ... 'Annie' 1968 340S Barracuda ... 'Rolling Thunder' |
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06-04-2006, 06:29 PM
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Registered
Join Date: Mar 2006
Location: Exton, PA
Posts: 103
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Thanks, as far as i can tell there is still spark will check it later.
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'80 SC 911 '67 Chevy SS Nova - Supercharged '99 GSXR track only, '99 Superhawk '05 Toy PU - daily driver |
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06-04-2006, 06:45 PM
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resident samsquamch
Join Date: Oct 2005
Location: Cooterville, Cackalacky
Posts: 6,815
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It's been my experience that "popping" is often a sympton of incorrect igniton timing or incorrectly wired spark plugs..i.e. you might have a plug wire going from the dizzy to the wrong spark plug.
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-jeff back in the saddle: '95 993 - just another black C2 *SOLD*: '87 930 GP White - heroin would have been a cheaper addiction... "Ladies and Gentlemen, from Boston Massachusetts, we are Morphine, at your service..." - Mark Sandman (RIP  )
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06-05-2006, 07:40 AM
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Registered
Join Date: Jul 2001
Location: Wilmington, NC USA
Posts: 635
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Sounds like you are 180 degrees out with the distributer. Check all spark plug wires and position of distributer.
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69 911 2.3Ez 85 928S |
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06-05-2006, 09:10 AM
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Registered
Join Date: Mar 2006
Location: Exton, PA
Posts: 103
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There is a lot to be said for sleeping on it. I did not pull the distrubtor and therefore never checked it, by 6:50 am I was thinking is it possible to be 180 out by 6:55 I was thinking if I had a 50-50 shot at something 2/3 of the time I would be wrong! By 7:00 I was thing who is the biggest bonehead I know? Rheterorical question; 10:00 pm walk in inhale food and out to the garage. Pressure check #1, yep it is out and hey SC's dist rotates the other way, good thing I took a second look. Hit the key and instant ignition. It's ALIVE!!!!
thanks for all your help Jeff
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'80 SC 911 '67 Chevy SS Nova - Supercharged '99 GSXR track only, '99 Superhawk '05 Toy PU - daily driver |
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06-05-2006, 06:47 PM
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