What should the timing be on a jeep?
Set your timing at 650rpm and at 9000′ your timing should be 18deg, at 5000 your timing should be at 14deg. Cap the vac source when setting. Miscellaneous.
Is there a owners manual for a Jeep CJ?
In the table below you can see 2 CJ Workshop Manuals,0 CJ Owners Manuals and 4 Miscellaneous Jeep CJ downloads. Our most popular manual is the Jeep Jeep CJ Jeep CJ 1960 Owners Manual . This (like all of our manuals) is available to download for free in PDF format.
When to replace timing chain on Jeep 4.2?
Full steel timing gears are available if you look. They are a bit noisier though. I bought mine years ago. When you are adjusting the timing, and the mark on the balancer seems to bounce around, then its time for replacement. A timing chain will stretch out in around 50k or so.
How do you change ignition timing on a Jeep Wrangler?
Jeep Wrangler Timing Instructions. You can adjust ignition timing on your Jeep Wrangler by rotating the distributor a few degrees. This procedure is possible on the 4.2L engine model only though. On 2.5L and 4.0L models, the Electronic Control Unit (ECU) controls ignition timing.
What do you set your timing to on a jeep?
This is the best method to set timing and tune the carb. Chilton said 8 degeees for my 1990 4.2L with a carb. Lower than 8 seems really, really low. I’d aim for a base timing of 8-10. Remember to readjust the carb idle speed and idle mixture AFTER setting the timing.
What’s the best way to set your timing?
Find a manifold vaccuum source, plug into that line with the vaccuum gauge and adjust timing so that maximum manifold vaccuum is achieved. Then go and adjust your carb idle mixture screws with the gauge still plugged in. Adjust one at a time to achieve max vac then lean it out VERY slightly. This is the best method to set timing and tune the carb.
What’s the ignition timing on a Jeep Wrangler?
This procedure is possible on the 4.2L engine model only though. On 2.5L and 4.0L models, the Electronic Control Unit (ECU) controls ignition timing. Before starting, make sure you have the correct timing degree and RPMs at idle specified by the vehicle manufacturer.
What should the idle speed be on a Jeep Wrangler?
Start the engine, increase the idle speed to 1600 rpm and adjust the idle to the number provided on the VECI label, following the procedure described in the same label. If you do not have this label, consult your car owner’s or vehicle service manual.