2.8l timing procedure? (Page 3/3)
BrittB FEB 25, 12:26 AM
Drove the car to work today and man it runs WAY better, Imagine that! I always figured that it was just a clapped out doggie V-6 but that little bit of fine tuning shows just how important that extra little bit of fine tuning really is plus it seems to run just a little smoother as well. I should have MPG numbers in a couple days.
hunter29 AUG 17, 06:50 PM
So is the ping easy to detect if you advance the timing to far ?
Patrick AUG 17, 07:22 PM

quote
Originally posted by hunter29:

So is the ping easy to detect if you advance the timing to far ?



For anyone who knows what to listen for, yes. For the uninitiated, you don't want to miss it... as doing so could eventually destroy your engine.

It's a bit trickier with an automatic, as it'll want to kick down a gear, but... While running Regular gas, what I do (after timing to factory specs) is floor the gas pedal in high gear while doing 30 mph up a slight incline. When an engine is timed to the factory specs, you shouldn't hear any pinging. I then advance the distributor a couple of degrees (turn it counterclockwise) and go through the procedure again. Eventually after doing this a few times, pinging should be apparent. It's like a rattling sound as you try to accelerate under the conditions I've laid out. Once you hear the rattling, retard the timing to at least where you had it previously... and then for good measure, retard it another degree or so. You simply do not want it pinging under any circumstances.

Newer cars can can pull (retard) the ignition timing to prevent engine damage. The Fiero ECU/ignition system is not capable of doing this. The engine will eventually beat itself to death if the ignition timing is too far advanced. You have been warned!

[This message has been edited by Patrick (edited 08-17-2024).]

hunter29 AUG 17, 08:02 PM
I remember ping from the old days, I think I timed it at 12* thinking it was close to 11*

I'll have to check it again tomorrow, I was just north of my mark thinking it was 10 3/4

So when looking at the scale it's from above, it would seem it should be viewed from the side. But thats not possible. So if it looks like it's at 12* is it really at 10* ?

You guys understand what I'm saying..

[This message has been edited by hunter29 (edited 08-18-2024).]

hunter29 AUG 19, 11:04 AM

quote
Originally posted by TopNotch:

Click here.



403... any other link ?
Vintage-Nut AUG 19, 11:20 AM
Hey hunter29, you only need to dig deeper in this link...

How to Set Ignition Timing on a V6 Fiero
https://www.gafiero.org/tips/timing.shtml

------------------
Original Owner of a Silver '88 GT
Under 'Production Refurbishment' @ 136k Miles

hunter29 AUG 19, 06:19 PM
Thanks but these links don't work, thanks I'm timed but thought I would look through it anyway, never know what you might learn..