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Old 11-17-2015, 02:41 PM
v8volvo v8volvo is offline
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Join Date: Jun 2009
Location: Montana, USA
Vehicle: '86 745, '83 764
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You might also have a couple of wires for the EGR throttle switch if your car has EGR. Seem to recall those being black but they also might be blue.

All that matters for it to start, though, is that there should be +12V at the two solenoids on the pump, functional glow plugs and circuit, and correct timing. I wouldn't worry about the extra wires for now as long as the ones that are plugged in are doing what they should.

What is telling you that the problem is electrical? Sounds like it might be, but might also be mechanical or fuel-prime related. Were you able to get the fuel lines all bled and primed all the way to the injectors? If not, that's the starting point.

You can accidentally set timing 180* out by timing only to the crank without checking the cam. Ways of verifying this are either taking the valve cover off, or taking the vacuum pump off (easier but you need to use a little more caution), to check what the cam position is when the crank is at the #1 TDC you've been using.

Does it smoke or cough when trying to start, or is there nothing at all?
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86 745 D24T/ZF 345k lifted 2.5"
83 764 D24T/M46 155k
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