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-   -   Timing checked with autoenginuity, something wrong with my timing? (https://blazerforum.com/forum/engine-transmission-35/timing-checked-autoenginuity-something-wrong-my-timing-43613/)

Denominator 04-20-2010 03:22 PM

Timing checked with autoenginuity, something wrong with my timing?
 
I hooked up my autoenginuity and see that the timing on cylinder #1 is fluctuating between -17 and -22. Should it be this much off?

swartlkk 04-20-2010 03:26 PM

To what are you basing the idea that this is 'off'? What were the other operating conditions. If its sitting in your driveway idling, I don't see much wrong with the timing. If it's cruising down the road, there again, I do not see a lot of problems. But if it is under high load, that much timing advance could be troubling.

Denominator 04-20-2010 03:33 PM

I had my distributor out when I changed my LIM gasket, after putting it back I have had some slight stutter from my engine under load.
It will not run as smooth as it did earlier. It also has some jumping idle and loss of power. This was no problem before. I have now checked and changed everything that might affect this, but no change. No vacuum leak. If this is normal, what else could it then be?

swartlkk 04-20-2010 03:43 PM

You didn't answer my questions... I said 'could be'. You need to provide the details behind your readings. Simply giving the spark advance reading and asking if they are correct is useless.

Did you reinstall your distributor properly?

Denominator 04-20-2010 03:57 PM

I did the readings on my way home from work, 9 miles long road, steep uphill.

In my opinion I did reinstall my distributor properly, but I could be a tooth off.

swartlkk 04-20-2010 05:50 PM

EDI Engine Timing

LowLife 04-20-2010 10:33 PM


Originally Posted by Denominator (Post 323156)
I had my distributor out when I changed my LIM gasket, after putting it back I have had some slight stutter from my engine under load.
It will not run as smooth as it did earlier. It also has some jumping idle and loss of power. This was no problem before. I have now checked and changed everything that might affect this, but no change. No vacuum leak. If this is normal, what else could it then be?


On the back of the distr. did you plug back in the c.p.s?

Denominator 04-21-2010 02:21 PM

Everything is back where it should be :)

Here's some results and logging from the scanner:

Right click and save.......

http://www.katherine-kelly.com/Tomsb...ril21-2010.csv

http://www.katherine-kelly.com/Tomsb...rsteforsok.xml


Maybe you can take a look at this, swartlkk, as it seems that you have good knowledge about this :icon_imnotworthy:

swartlkk 04-21-2010 02:27 PM

Have you verified the position of the rotor after aligning the timing marks on the crank shaft pulley/damper with the marks on the timing cover/block per the instructions in the link I provided above??

Denominator 04-21-2010 02:31 PM

Yes, I have tried my best and as far as I can see, the converter is reinstalld correct.


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