I see the wear, but don't recognize what these components are. Also, it makes a very brief but load rattle on cold starts. The photo below compares the improved and original primary tensioners. The redesigned primary timing chain service kit includes an improved chain tensioner and chain guide, chain, jackshaft and sprockets. Some steps should be performed in the order indicated while for others the order may not matter. You only have ~5-6 minutes to install the balancer assy before the silicone cures.
Almost all timing gears have a dot that face each other when the timing marks are lined up. The puller center bolt head is then alternately tightened with a wrench and hit with a hammer until the balancer is extracted far enough to reach the head of the balancer retaining bolt. A scrap bolt with washers on both sides of the chain link is screwed into the head. This kit is essential to restore the smooth operation of your engine. I don't think it was a money generating product for ford more so a first couple years design bug. Put the engine in safe mode as shown in the article , remove the cam covers, unbolt all of the front accessories, the crank pulley, front cover, and then proceed to replace the components.
This particular engine has a timing chain in the back of the engine head passanger side that forces you to pull the engine out just to do timing chain replacement. The lighter oil will flow to the timing chain more quickly following a cold start and reduce the noise somewhat. The force required may exceed 75 ft-lbs. They all have walked away from Fords entirely forever and now own foreign vehicles. I'm the type that would go ahead and replace the timing chain while it's in front of you if you plan on having the vehicle for more than a year or so. Not sure what you'd find on the explorer though, you may need to remove the pulley.
Make alignment marks for reassembly on the flexplate and spacer or the flywheel and the crankshaft. A third timing chain in the back of the engine connects the rear of the jackshaft to the overhead cam in the right cylinder head. Normally, chain driven overhead camshafts would be more reliable than belt driven overhead camshafts. Gonna try and tackle replacing the pre-tensioners. It is very important to only hammer in one side so that the plug does not go into the opening.
If using a strap wrench or chain wrench to prevent the balancer from rotating attach it to the inner section of the balancer in the region identified by the green arrows in the photo below. All the other bolts unscrew using fingers only so why shouldn't this one? The lighter oil will flow to the timing chain more quickly following a cold start and reduce the noise somewhat. The front left chain tensioner can be tricky to extract because of its close proximity to the thermostat housing and coolant sensors. The rear jackshaft bolt is also covered by a small circular plug on the back of the engine. The camshaft chain is kept taught by a spring loaded hydraulic tensioner utilizing engine oil pressure.
Jason The person who says it cannot be done should not interrupt the person doing it. I have a 2001 Ford Ranger 4. Meaning, if the belt breaks, is it going to destroy everything or not. It probably allowed the engine to be shorter and more compact. I start to pull over and the engine dies. The first to go is usually the primary chain from the crank to the jacks haft.
But, if the engine has a bad rear chain or guide, or a chain guide has failed and throws debris into the crankcase, you will have to remove the engine to make the required repairs. To play it safe, use alldata or a service manual. An assembly consisting of a jackshaft sprocket, camshaft sprocket, connecting chain and chain guide constitute a cassette. Go with the genuine Ford replacement parts or parts from a quality-brand aftermarket company. If you don't have the balance shaft, it is not necessary to remove the block cradle. A photo of the left cassette is shown below. The balancer retaining bolt is torque-to-yield and should not be reused.
We have the best products at the right price. This ticking noise are usually associated with poor oil flow through the upper part of the engine or sticking lifters. Remove the left valve cover. Approximately 7-8 thousand miles ago I began having a rattle as my truck would upshift between 2. I highly recommend using a database like all data, or a Haynes or factory ford service manual along with these links. A universal sprocket holder similar the one shown below may be used to prevent the sprocket from rotating. The engine with the heads is very top heavy.
Meaning, if the belt breaks, is it going to destroy everything or not. Also, it makes a very brief but load rattle on cold starts. One thing I have not mentioned is that once you remove the chains, by no reason rotate the crankshaft. I am out of my element posting this on the 4. Remove block cradle If you have the balance shaft and want to replace the balance shaft chain tensioner it will be necessary to remove the block cradle upper oil pan in order to remove the balance shaft chain tensioner mounting bolts shown in the photo below by janolsson.
The above photo shows the original style tensioner that has failed. That includes removing the flywheel and flexplate so that the rear cam drive cassette can be replaced, and pulling the oil pan so any debris in the oil pan and oil pickup screen can be cleaned out. I used gasket sealer when reassembling. A second, longer timing chain behind the first chain connects the front of the jackshaft to the overhead cam on the left side of the engine. All of the timing chain related improvements were incorporated in the 2002 and later production models.