What is the timing set for a 4.3 motor
#1
11-30-07, 05:42 PM
What is the timing set for a 4.3 motor
Hi can anyone tell me what the timing should be set at for 4.3 motor in a 1988 chevy truck .
I looked in my book but it did not tell me ' it said to look on the truck . And I can't find it there .
PS: And what is the idle RPM suppose to be set at.
Thanks
I looked in my book but it did not tell me ' it said to look on the truck . And I can't find it there .
PS: And what is the idle RPM suppose to be set at.
Thanks
Last edited by major41; 11-30-07 at 06:22 PM.
#2
12-01-07, 05:08 AM
Group Moderator
Looks like 700 on the idle, not adjustable if it's fuel injected. Timing 4 deg BTDC for manual trans, automatic - "see underhood info". Hmmm. Maybe someone knows; in the meantime you're probably safe using the 4 BTDC.
On carbureted engines you would need to disconnect the vacuum advance line to kill the advance on the timing. On injected models there should be a small connector visible near the distributor that must be disconnected to accomplish the same thing prior to setting timing.
On carbureted engines you would need to disconnect the vacuum advance line to kill the advance on the timing. On injected models there should be a small connector visible near the distributor that must be disconnected to accomplish the same thing prior to setting timing.
