For a 1988 Jeep YJ, you should generally advance the timing by about 2 to 4 degrees from the factory setting, which is typically around 5 degrees BTC (Before Top Dead Center) for the 2.5L engine and 0 degrees for the 4.2L engine. It's important to check your specific engine type and consult the owner's manual for the exact specifications. Always use a timing light to ensure accurate adjustments and listen for any signs of knocking or pinging, which may indicate too much advance. Adjust accordingly based on performance and fuel quality.
Timing is computer controlled, you can not.
6Deg +/- 2Deg
If you mean the airflow diagram for the emissions system, it should always be on a plate under the hood or by the radiator or somewhere close by. If you are talking about the vacuum advance for the ignition timing, you should probably repost. Phil
For a 1988 Jeep Comanche with a 2.5-liter engine, the timing marks are typically located on the crankshaft pulley and the timing cover. The crankshaft pulley has a notch or mark that aligns with a corresponding mark on the timing cover. To set the correct timing, the engine should be at top dead center (TDC) on the compression stroke for cylinder number one. It's essential to use a timing light to ensure accurate ignition timing adjustment.
It has a timing chain that should last the life of the engine.
The timing chain does not require replacement unless it has failed.
3-4 deg before TDC with the vacuum advance hose off the distributor and plugged.
Yes, that should work.
A 2002 Jeep Liberty has a timing chain.
The Jeep Patriot has a timing chain.
A Jeep Patriot has a timing chain.
A Jeep Patriot has a timing chain.