350 Timing

[Marsicano]

Hey guys, after throwing a couple pistons in my old motor i have gotten around to putting another 350 TBI in my 87 silverado. However when i pull the brown and black tracer timing wire the engine will not start. It runs fine with the wire plugged in, but i cant unplug it to time it to 0. Any ideas on what could be causing this?

Thanks for the help,

Dan

 

[350runner]

Pull it while running.

Sent from the dust in front of you!

 

[Marsicano]

Tried that to, it immediately dies out. I timed my old engine and it worked fine but i cant figure out why it would die when i take control away from the computer.

 

[350runner]

Have you tried advancing the distributor till you can get it to run?

Sent from the dust in front of you!

 

[Marsicano]

Yes tried advancing it a good amount, immediatly dies when unplugged and wont even start unless its plugged back in.

 

[bucket]

I don't know what is causing your problem, but the TBI motors really like more timing than what the factory called for. Mine have all been happy in the 8* to 12* range, with 10* or less still running fine on regular 87 fuel.

 

[89Suburban]

Hey guys, after throwing a couple pistons in my old motor i have gotten around to putting another 350 TBI in my 87 silverado. However when i pull the brown and black tracer timing wire the engine will not start. It runs fine with the wire plugged in, but i cant unplug it to time it to 0. Any ideas on what could be causing this?

Thanks for the help,

Dan

Is it at operating temperature when you pull the wire apart?