Re: setting ignition timing on a 1989 f-250 302 v8

Apr 01, 2004 11 Replies

Go to the library and read one of the manuals or buy a manual for the truck. There is a plug (wiring) you have to remove. The timing setting should be on your emissions label.


C. Vaughan


Can anyone please help me? I'm trying to set my timing. Is there a wire
> that u disconect before setting the base timing? Then where on the scale
> do u set it? Again its a 1989 f250 with a 302 v8 multi port fuel > injecton.
>

for anyone who wants this info, to set up your ignition timing. bring your engine to top dead center #1 cylinder. drop in your distibutar put #1 plug wire to where the rotor is pointing on your cap. disconect the SPOUT connector from your distributar to engine harness. run engine and set timing mark at zero. reconnect the SPOUT wire and run engine the EEC will adjust the timing as it needs. dont forget to disconnect the battery positive afterwards. because running the engine with the SPOUT wire disconnected will set a trouble code in the computer. hope someone can use this info

I hope no one uses it since it's wrong........... Bob

Useful only if someone want a truck that runs like crap.

Yeah, I hope no one wants that WRONG information. You don't just "drop it in" and then put #1 just anywhere. (unless of course you're a shade tree mopar mechanic)

OK if my info is wrong, why didn't anyone tell me how to do the timing procedure when i first asked?

Some people are just plain indifferent!

I didn't see your original post, is there any way I may be of assistance?

Refinish King

Because it's clearly spelled out on the under-hood tune up label?

As for your second post where you describe the procedure wrongly; #1 plug wire -has- to go to the cap terminal _marked_ #1, then the distributor -has- to be installed so that with cylinder #1 at TDC compression, the rotor aligns with the cap terminal marked #1. If you don't do this correctly and install any old which-way and then try to compensate by relocating the plug wires around the cap, your injectors will be fired out of sequence because PIP will be synched wrong.

Lastly, base ignition timing is not set at zero. -ALL- EEC-IV ignition timing is set to 10* BTDC. EEC-IV will not, can not compensate for improperly adjusted base ignition timing.

thank you refinish king i was just wondering on how to set my base timing but i think i got it now

thank you for the info maybe i just didnt type what i was thinking about putting the plug wires on. i've set up a bunch of engines and never had any problems with firing order . just never on the newer computer controlled stuff. as for the info i got it from my snap on salesman who was a auto mechanic and thought it sounded good. guess it wasnt lol. but thank you for correcting me

I did. You never said the dist. was out of the truck. If it wasn't, I never said to pull it.

Pull the SPOUT, set the timing according to the emissions label on the truck. Put the SPOUT back in. You're done.

If the engine was apart or the dist. had already been pulled, you should have mentioned that in your original post.

For those that don't have the original post, it is as follows:

"Can anyone please help me? I'm trying to set my timing. Is there a wire that u disconect before setting the base timing? Then where on the scale do u set it? Again its a 1989 f250 with a 302 v8 multi port fuel injecton."

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