Timing question
09-21-06, 01:19 PM
#1
resU deretsigeR
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Timing question
background:
Okay, so I ligned up the marks on my CAS, and ligned up my leading mark on the pulley with the needle on the front cover....and stabbed the CAS.
Doing this, the car ran okay.....it was weak, but as expected with a fresh rebuild. I put around 50 miles on the car with the initial "stab".
I went to a friends house, and got a timing gun. When I checked the timing with a gun...the leading mark was at 10 o'clock (if looking at a clock, and using the needle on the front cover as my 12 o'clock). So, just adjusting the CAS without pulling it out and restabbing wouldn't bring it all the way back to "perfect" time.
So, I restab, and start the car up again...I lign everything up "perfect" on the leading, and trailing according to the timing gun (at 1300 rpms). The idle sounded better than the initial stab.
I'm expecting this to have a positive effect on the car, but when I try to drive it....it's weaker than it was on the initial stab.
Now.....to my questions......
Will it hurt to put my timing back to where it was on the initial stab? At least until I can get the car broken in a bit more to where it'll idle around 750-800...
In relation to my 2nd stab, is my 1st stab more advanced, or retarded?
Thanx.
Okay, so I ligned up the marks on my CAS, and ligned up my leading mark on the pulley with the needle on the front cover....and stabbed the CAS.
Doing this, the car ran okay.....it was weak, but as expected with a fresh rebuild. I put around 50 miles on the car with the initial "stab".
I went to a friends house, and got a timing gun. When I checked the timing with a gun...the leading mark was at 10 o'clock (if looking at a clock, and using the needle on the front cover as my 12 o'clock). So, just adjusting the CAS without pulling it out and restabbing wouldn't bring it all the way back to "perfect" time.
So, I restab, and start the car up again...I lign everything up "perfect" on the leading, and trailing according to the timing gun (at 1300 rpms). The idle sounded better than the initial stab.
I'm expecting this to have a positive effect on the car, but when I try to drive it....it's weaker than it was on the initial stab.
Now.....to my questions......
Will it hurt to put my timing back to where it was on the initial stab? At least until I can get the car broken in a bit more to where it'll idle around 750-800...
In relation to my 2nd stab, is my 1st stab more advanced, or retarded?
Thanx.
09-21-06, 11:16 PM
#2
Opinions are like........
Do you have the stock pulley?
Timing should be checked hot, no load, with test connector grounded, at 750 rpm and not 1300 rpm.
Restab and make sure CAS marks stay put.
Timing should be checked hot, no load, with test connector grounded, at 750 rpm and not 1300 rpm.
Restab and make sure CAS marks stay put.
09-22-06, 07:41 AM
#3
Lives on the Forum
Put it back to how it was.
You're not supposed to be pounding it anyways, so the slightly off ignition timing won't hurt anything.
It sounds like the original CAS stab was more correct.
At 1,300RPM, that's some significant ignition timing advance already, so you just backed all of that out.
If anything, you can crank the CAS for a little more advance (timing mark moves clockwise) to help the car driving around better...
-Ted
You're not supposed to be pounding it anyways, so the slightly off ignition timing won't hurt anything.
It sounds like the original CAS stab was more correct.
At 1,300RPM, that's some significant ignition timing advance already, so you just backed all of that out.
If anything, you can crank the CAS for a little more advance (timing mark moves clockwise) to help the car driving around better...
-Ted
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