Question about 2003 Ford Explorer
Go to autozone. They sell a real nice easy to follow cd that will walk you step by step thru the process.
Posted on Apr 23, 2015
Its not the chain that has marks. it is the cam and crank gears
Posted on Apr 16, 2015
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Posted on Jan 02, 2017
There are no timing marks. Timing is done using special tools to hold the crank at top center and a tool to hold each camshaft in position. the cam sprockets are not pinned to the cams. there are also dummy tensioners installed to take up the slack till the tightening is done. Also there are chains at the back of the motor that can only be timed with the motor out of vehical.
Posted on Feb 21, 2009
There are no marks on this one. There is a special tool set to align camshafts ($900). The best you can do is to bring #1 cyl to TDC compression with both cam(valve) covers off. #5 cyl should have lobes at equal opening, exhaust just closing and intake just opening.. #1 cyl cam lobes should each be diametrically opposed to the positions of #5. If cams need to be moved, there is no registration of gear onto cam. Just loosen bolt holding gear and move cam. Retighten bolt. Roll thru 2 crank revolutions and check cam timing again.Simple.
Posted on Jul 24, 2009
There are 2 different 4.0L type engines on Ford Explorers if it is the VIN letter E (8th number reading left to right) then yes it has a timing chain on the back and there are 3 timing chains on the front. You will need special tools to hold the timing in place whille you change the chains. You can buy them from several different tool manufacturers. I bought mine from Snap-on but it was several hundred dollars and came with many different adapters for several different engines. But be prepared to spend a little money they aren't cheap even the small sets. Depending upon how much you'll use them you may want to see how much it would cost to have it done or try to find someone to loan you some. If you do then it's just a matter of following the procedure in the maintenance manual. As far as how hard is it? It isn't rocket science but I would make sure you read over the procedure in a repair manual, see if you can get the special tools you will need and depending upon your mechanical aptitude determine if it's something you want to tackle yourself. Good luck.
Posted on Nov 05, 2009
Remove the two bolts, the timing chain tensioner and tensioner arm.
NOTE: LH shown; RH similar.
Remove the bolts and the timing chain guides.
CAUTION: Do not compress the ratchet assembly. This will damage the ratchet assembly.
Compress the tensioner plunger, using an edge of a vise.
If the copper links are not visible, mark two links on one end and one link on the other end, and use as timing marks.
If removed, install LH and RH crankshaft sprockets.
Position the tensioner arms and tensioners, and install the bolts.
Posted on Apr 07, 2010
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