Timing troubles!!!

[MYYellowTY]

Ok I done a search and read all I could.My symptom is similar to these link

I removed my distributor, and replaced it.Now when I time it its between the TWO timing marks.I noticed when I plug the tan wire in it didnt change.Is that right or maybe the module is bad??

Also, does it matter if its off a tooth or more ?Or can the base just be rotated to where you need to line it up with #1 post at TDC?

I got a piston stop and the balancer is fine but if I time it to 0 with the tan wire undone it dies.Then it wont start because seems to much compression and my starter started arcing because it wont crank.Also when its between the 2 marks if I retard it near the one line it knocks bad but if I advance it near the other the sound goes away and smooths out but I still get 18KR no matter where it is.

This is driving me nuts!!! Getting a ECM to try that and may try a pickup and module to??????????HELP!!!

 

[Don W.]

Re: Timing troubles!!!

First, using your TDC check mark the correct mark on the dampener. Disconnect the tan wire and get the truck to start and set the timing to "0". (Being one tooth off won't matter, just turn the dist as necessary. More than a 1 or 2 teeth you may want to reset the dist.) With timing set, tighten dist, making sure the hold down is up on the dist, and recheck timing. Shut truck off, reconnect tan wire, remove ECM fuse, wait a moment, reinsert fuse, start truck.

FWIW I've spoken to a GM tech that says you do-not have to remove the fuse after reconnecting the tan wire. That doing that forces the IAC to reset also and the ECM doesn't need to be reset anyway.

 

[MYYellowTY]

Re: Timing troubles!!!

I cant get it set to 0* with it running, it dies.I can get the timing mark about 4*ATDC and restartable.It runs best when its between the 2 timing marks.If I set it 4*ATDC and reconnect the tan wire and reset the ECM, it still shows 4*.Shouldnt it change when its reconnected?? Ill have to try a different module I guess. ?????????

 

[MYYellowTY]

Re: Timing troubles!!!

Found my problem.Got piston to TDC and balancer lined up on the second timing mark if engine rotates clockwise.Set distributor to fire at #1 and started it up.Ran good.Checked timing and was off 2* so adjusted it.Turned it off, connected tan wire and started.Still at 0*.So I replaced the module and 25* timing. So if your timing is between 2 timing lines your module is most likely the prob. :tup: