Timing Madness. Cam timing = Good. Base timing = Not Good?!? (A Mystery)
Hello All,
I made a recent post called 'timing woes', where I was having problems getting the timing set correctly. Some people said it might be the crank pulley separated or cam timing might be off.
So, this weekend we swapped in S4 cams. Everything used for checking cam timing looked fine. We checked cam timing before AND after installing the cams. I was having this issue before we even swapped the cams. But during and after the swap we confirmed cam timing was good.
This is what we saw at TDC:
1.) 20 links between marks on timing chain
2.) Dowel pins at 10 and 12 o'clock
3.) Crank at 0* timing
4.) #1 piston confirmed at top of stroke
5.) Rotor pointing right at No 1 spark plug.
Most of this stuff was checked 2 and 3 times by several different people(some 4 times).
We also swapped out distributors and that didn't fix it AND no knock sensor code.
So here's my problem. When we get the car in timing mode(w/a Consult cable & timing light), 15* of timing is FAR advanced. Almost towards the front of the car to get it into 15* timing. Car seems to run perfect at this setting. If we move it right in the middle of the distributor(where 15* "should" be), the car hesitates and runs pretty bad.
One thing that was brought up is that the crank may be off a tooth?(note: crank, not cams) Would you still get good cam timing and would this affect overall base idle timing if that was true? Anyone have any ideas what my problem is?
IDK, I'm really confused..
-G
I made a recent post called 'timing woes', where I was having problems getting the timing set correctly. Some people said it might be the crank pulley separated or cam timing might be off.
So, this weekend we swapped in S4 cams. Everything used for checking cam timing looked fine. We checked cam timing before AND after installing the cams. I was having this issue before we even swapped the cams. But during and after the swap we confirmed cam timing was good.
This is what we saw at TDC:
1.) 20 links between marks on timing chain
2.) Dowel pins at 10 and 12 o'clock
3.) Crank at 0* timing
4.) #1 piston confirmed at top of stroke
5.) Rotor pointing right at No 1 spark plug.
Most of this stuff was checked 2 and 3 times by several different people(some 4 times).
We also swapped out distributors and that didn't fix it AND no knock sensor code.
So here's my problem. When we get the car in timing mode(w/a Consult cable & timing light), 15* of timing is FAR advanced. Almost towards the front of the car to get it into 15* timing. Car seems to run perfect at this setting. If we move it right in the middle of the distributor(where 15* "should" be), the car hesitates and runs pretty bad.
One thing that was brought up is that the crank may be off a tooth?(note: crank, not cams) Would you still get good cam timing and would this affect overall base idle timing if that was true? Anyone have any ideas what my problem is?
IDK, I'm really confused..
-G
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Originally Posted by turbotank 
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