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PeteKz PeteKz is online now
PCA Member since 1988
 
Join Date: Feb 2018
Location: SW Washington State
Posts: 4,627
Garage
Good job so far. Once you get it running, it stays running, correct? If so, let it sit and run for a good long time until it gets fully warmed up, and/or drive it around the block a few times. Then try to restart it.

The yellow wire from the starter solenoid goes back to the ignition switch. Check your wiring diagram for your year ('cause I don't have all of them memorized), but there should also be a yellow/blue wire from the starter that goes to the cold start valve and thermo-time switch. The CSV activates and squirts fuel when the starter is energized, AND the TTS is cold. After the TTV warms up, either due to electrical current through it while starting, or due to the engine reaching operating temperature, the CSV no longer operates.

I'm also thinking you may have a fuel accumulator problem. The diaphragm inside eventually cracks and then it doesn't hold pressure for the next start. We've seen a lot of these go bad in the past couple years (mine included), IMO, due to the increasing amount of ethanol contamination in the fuel. It usually causes problems with warm restarts. Here's the Roadkill Garage quick and dirty check: remove the fitting from the bottom of the FA and pinch off or plug the hose. Run the pump. If you get any fuel out, it's bad. New one from our sponsor is about $160.

Also possible that you have a significant intake air leak that is preventing the airflow from lifting the metering arm high enough to activate the air flow switch, and thus powering the fuel pump. Plan to do a smoke check.

spuggy: I didn't mean to imply it has a turbo engine--it obviously doesn't--but that it may be an original turbo car, and that someone swapped the engine in the past. If so, he really stole it!
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1973.5 911T with RoW 1980 SC CIS stroked to 3.2, 10:1 Mahle Sport p/c's, TBC exhaust ports, M1 cams, SSI's. RSR bushings & adj spring plates, Koni Sports, 21/26mm T-bars, stock swaybars, 16x7 Fuchs w Michelin Pilot Sport A/S 3+, 205/55-16 at all 4 corners.

Cars are for driving. If you want art, get something you can hang on the wall!

Last edited by PeteKz; 05-10-2023 at 03:33 PM..
Old 05-10-2023, 03:17 PM
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