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Can the timing chain be replaced without removing the engine

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No u need to remove the head

Posted on Jun 27, 2009


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XLT with a 4.0L V6. How do I replace timing chain without removing the engine entirely?

there is a lot to completing this job, your best bet is to look it up on youtube, that will show you step by step. Good Luck it would take a lot of explaining on here.

Jan 02, 2016 | 1998 Ford Explorer

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How remove the cylinder head of motor from a lincoln navigator 1998 without moving the timing chain

Impossible. This is a dual cam engine. There is a camshaft in each cylinder head. The head cannot be removed without removing the timing chain.

Nov 03, 2015 | 1998 Lincoln Navigator

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Can I adjust timing chain on a 1999 ford f150 5.4L without removing engine?

There is no real timing chain adjustment. If the timing chain is loose, it is because it has stretched beyond the ability of the tensioner to compensate. You'll need to replace the timing chain. (Yes, it can be done without removing the engine, but it's a tight space!)

May 15, 2015 | 1999 Ford F150 Regular Cab

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Engine lite just went on and called the dealer. My 2007 SRS Cadillac has 70,000KM On Star said it was the timing chain. The dealer stated they will check this tomorrow, Jan 11, and if the need to work...


Jan 10, 2011 | 2007 Cadillac SRX

1 Answer

Hello,i just replaced my 22re engine with a remanufactered engine with only 2200 miles on her it already sounds like the timing chain is rattling on her any ideas

gaurds for chain are probaly broken you can change these without removing the chain but do it before chain jumps time

Jul 21, 2009 | 1989 Toyota Pickup SR5

2 Answers

How to replace a timing chain 2000 chevy cavalier

I am familiar with that vehicle but generally with timing chain replacement, the engine needs full access for pulley and cover removal and in some cases the cylinder head requires removal.
Generally timing chains last so that they only need replacement at engine overhaul and it is not an economic proposition to have to replace a chain unless some relative degree of engine work is also required at that time. 

Engine timing chains generally have a tensioner on them which maintains tension, but some chains can wear significantly and cause timing cover to be "ground away" because of "slop".

If the engine is making the noisy rattle of the timing chain against the cover etc, I would schedule a top overhaul (head, machine, test and valve grind) with the chain replacement dependent on mileage with the degree of action.

Some simple simplex timing chains (type of chain similar to motor bike chain) may be replaced without dismantling the engines but I would expect your chain would be a "duplex" dual sprocket type, these are most common. 
These chains are not generally expensive but replacing them can involve a fair amount of work. 

Good Luck and hope this helps, Others will have different ideas.

May 04, 2009 | 2000 Chevrolet Cavalier

1 Answer

I am replacing the water pump of my 1995 3.0 v6 infinity (same as altima) but my son removed the chain with out marking it, now I need to set the timing. How do I do this? There's marking on the valve...

This should be the same engine as the Maxima. If that is the case, there is no reason to remove timing chain or get it out of time. The pump is driven by the timing chain, but is not "in time".

The pump is under its own cover. The chain tensioner is under its own cover. The pump is removed after the tension is released on the chain, the tensioner pinned in its retracted position to take tension off chain, and the crank is rotated about 20 degrees counter clockwise to slacken the chain at the pump sprocket without coming off the cam sprockets. Then, the pump is remove by removing its mounting bolts and then screwing in three long M8 bolts as jack bolts into 3 holes (carefully and evenly) to jack out pump. The pump is sealed from the engine case by two o-rings that must be replaced. I think the pump mount bolts are sealed with silicone when replaced. I would get a Haynes or other reliable manual.

If you truly have to reset or check timing, definitely get a book.

Jan 12, 2009 | 1995 Nissan Maxima

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