Question about 1989 Jeep Cherokee

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I need a picture of the timing marks for Jeep 4.0

I need a picture to set the timing

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Timing the Cam to the Crank

There are several ways to time the cam to the crank. Be sure to check the manual before you install the timing chain or belt.

  • Some timing sprockets are properly timed when the marks face each other.
  • On others, there must be a certain number of chain links between the marks.
  • Sometimes chains have colored links that must be aligned with the marks on the sprockets.
  • Some overhead cams have a mark on the cam gear that lines up with a mark on the cylinder head when the timing mark on the damper is at the TDC mark.
Align the timing marks for the camshaft and crankshaft sprockets before removing the timing belt or chain.

If the old parts are available, carefully compare the new gears or sprockets with the old ones. Check the keyway and timing marks just in case there might have been an error made in manufacturing. Sprockets are sometimes stamped backward. Its much better to find the problem during assembly, rather than waiting until problems show up after reassembly and reinstallation.

Maintaining Valve Timing

During a valve job, it is essential to keep the timing chain or belt in place to maintain correct valve timing. Position the number one cylinder at TDC. Some overhead cam engines use a single long chain for a cam drive. The chain can be wedged against its guides with a tapered block of wood.
the chain tensioner on some ohc engines must be wedged to keep the chain in position during cylinder head removal. courtesy of nissan motors.

Some engines have a lower and upper chain. These engines do not require special attention to wedging the chain. Be sure to look for hidden head bolts and check the repair manual before removing the OHC head.

Posted on Dec 08, 2012

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Posted on Jan 02, 2017

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SOURCE: need timing marks for jeep liberty

necesito marcar jeep liberty 2002 3.7

Posted on Feb 26, 2010

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1 Answer

Need to know how to set the timing marks for the camshaft gear & crankshaft gear


I would say that you line the marks up together between the gears. One gear should have two mars and the other gear should have one mark put the one mark between the two marks

Nov 27, 2015 | 1988 Jeep Comanche

1 Answer

1995 Jeep Wrangler SE 4.0L... It is running rich. I accidentally turned the distrobutor during recent repairs and cannot get the timing back to normal! Everyone i ask says that there is no timing procedure...


there is a static timing setting from which the ECM advances or retards the spark according to sensor reports and rpms
using a timing light connected to no 1 cylinder set the mark on the pulley to 10 degrees btdc and that will allow the timing to work properly
if there is no scale on the timing cover and a small slot th the pulley flange
do this
remove no 1 plug and get no 1 piston coming up on compression
using a piece of copper wire in the plug hole determine when the piston is at TDC by seeing the wire moves up or down as you move the crank either way
place a white paint line at a convenient place on the cover and on the pulley edge
now move the pulley back ( anticlockwise ) about 3/4 of an inch and put a second mark on the timing cover
That second mark will be close to 10 degrees and will be within the parameters for the ECM to adjust the timing when running
using the timing light again turn the body of the distributor until the pulley mark lines up with the second mark you made and clamp it up at that point

May 28, 2017 | 1995 Jeep Wrangler

1 Answer

Looking for how to set the timing on a 2001 jeep grand cherokee. I put a new engine in and the time needs set.


bring your no 1 piston up to top dead center, remove valve cover and make sure no 1 exhaust is open and you will see the alignment marks on the pulleys.

Sep 09, 2010 | Jeep Comanche Cars & Trucks

1 Answer

I have a 1993 jeep grand cherokee 4.0l and need a diagram for the timing chain links. i was told that there is to be 15 links between marks and then told 20. need help please.thanks


I don't have a diagram I can post, but once you install the new chain and have the two timing marks pointing toward each other, then turn the Crankshaft around twice and see if the two timing marks still line up. Remember, the crankshaft turns two times for every one time the camshaft turns.

I understand the 15 vs. 20, but that's neither here nor there. What the Factory Service Manual states is there should be 15 "pins" between the timing marks when the timing chain is set up properly. (?) The links you speak of aren't what you're counting...it's the pins in the chain. In other words, for each link of the Timing Chain, there are two pins, holding it in place...or a total of 48 pins on the length of the entire timing chain. Personally? When I install a timing chain, I rotate the crankshaft around twice to see if the timing marks still match up, and before putting everything back together, I start the Engine for a brief few seconds thereby knowing after reassembling everything, the Engine WILL Start.

If you're still concerned about the 15 pin thing, stop by your local Dealership and look in the Factory manual in Section 9 (Engine), Page 36 for a picture of the 15 so-called "chain-pins."

Hope this helps,

~00 Buck~

"Still living on the Right Side of Dirt..."

May 18, 2010 | 1993 Jeep Grand Cherokee

1 Answer

Need timing marks for jeep liberty


necesito marcar jeep liberty 2002 3.7

May 19, 2009 | 2002 Jeep Liberty

1 Answer

How do you time a 4 cyl, and a diagram for those timing marks locations


if u go on yahoo.com type 1995 mazda 626 timing and click on search images you will see a picture of how to set it.

Sep 20, 2008 | 1995 Mazda 626

1 Answer

Timing chain set up


hi there if you already replaced the timing chain then you must have aligned the crankshaft mark to the mark that is on the cam sprocket ?

Jul 08, 2008 | 1994 Jeep Grand Cherokee

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