How do you change the timing chain on a 22R?

Remove the one horizontal mounting bolt up front and the two vertical mounting bolts in back and use a floor jack to lower the front differential assembly. Alternately, you can remove the motor mount bolts (2 per side) then use a cherry picker crane to raise the engine a few inches for clearance to drop the oil pan, if needed.

Can a 4.0L SOHC engine bend the timing chain?

Fortunately, the 4.0L SOHC is not an interference engine so a timing chain failure won’t bend the valves. But it does create an expensive repair for the vehicle owner.

How many bolts are in a timing chain?

There is also one more bolt (not shown in the image below) behind/below the “two water pipe bolts”, so there are in total 18 bolts holding the cover in place, be sure all 18 have been removed before attempting to remove the timing chain cover. 16. Here you have two options: Remove the whole oil pan, or just remove the two front bolts.

What are the bright links on a timing chain?

Locate marks or “bright” links in your timing chain. These links are brighter than the other links and are used to align your engine. Set your engine to top dead center. To get your engine to top dead center, line the bright links on the timing chain up with the marks on your camshaft and crankshaft gears.

Fortunately, the 4.0L SOHC is not an interference engine so a timing chain failure won’t bend the valves. But it does create an expensive repair for the vehicle owner.

Where are the notches on a timing chain?

With the vehicle in neutral turn the crank by until the timing guide 0 (ZERO) is lined up with the notch in the pulley. Now you should see that the cam gear notches are at the top and that the raised rib on the crank is also at the top.

When is the best time to replace timing chain?

Best to address this step early on in the process, instead of waiting until the engine is torn half-way down and starter operation is not possible. This is step 18 below.

Can a worn out timing chain make a noise?

A worn timing chain may make noise inside the casing, especially if it is sitting loosely enough on its gears to rattle. To hear this, you will need to open the hood with the engine running and listen closely since it may be inaudible above the general engine noise while you sit in the car.

How can I tell if my timing chain has slipped?

Listen for any abnormal engine noises, with the engine idling, in the vicinity of the timing chain cover. Chains that have slipped time have slackened and can sometimes rattle during cold start or idle, or produce a swishing or scraping noise.

Do you have to change timing chain in front wheel drive car?

No such luck if you have a modern front-wheel drive car with a transversely-mounted engine, as the space in the engine compartment could be very tight. To avoid timing chain problems you should maintain your engine properly and have the engine oil changed at recommended intervals. Using premium quality engine oils and oil filters will also help.

Can a timing chain be replaced on a pushrod car?

In old-style pushrod engines, replacing the timing chain is a fairly easy task. No such luck if you have a modern front-wheel drive car with a transversely-mounted engine, as the space in the engine compartment could be very tight.

What can I do to avoid timing chain problems?

To avoid timing chain problems you should maintain your engine properly and have the engine oil changed at recommended intervals. Using premium quality engine oils and oil filters will also help. Keeping the proper oil level will ensure that the timing chain is always lubricated.

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