I have a 1998 Ford explorer v6 motor, i have replaced the timing chain and tentioners on the front of the motor but not knowing when the chain undone the timing slipped. I would appreciate if you could send me a diagram how to retime the complete motor.
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The tensioner is located at the rear (right side) of motor. Jack the car up, remove right front wheel, remove the splash guard. Looking up, above the exhaust manifold near rear of motor you'll see a BLACK 25mm or 27mm bolt head....That's the tensioner.
There are three engines used in a 97 model. The 4.0 single overhead cam V6 engine uses a timing chain in the front and in the rear, one for each cam. The left side is in the front and the right side is in the back. You would have to take the engine out to access the rear chain. The 4.0 overhead valve engine and the V8 engine only have one chain in the front.
If thie engine in your explorer is the v6 4.0 I found this information online - You are not supposed to need to replace the timing chain(s) on a 4.0L
SOHC V6. There are actually a total of FOUR, on this particular engine.
This is a job that I would NOT recommend anyone even thinking of
attempting to replace, if it's by anyone other than a FORD DEALER
TECHNICIAN FAMILIAR WITH DIASSEMBLY/ASSEMBLY OF 4.0L SOHC V6 ENGINES.
The reason for this is because, this particular engine is an interference engine BIG TIME!!! There are NO timing marks on this particular engine. They require FIVE dedicated Ford/Rotunda tools to service.
As timing chain accumulate mileage, chain stretch, sprockets wear out and set the valves off timing. Most chains go up to 100000 miles or more, but not always. As a rule when there is more than about half inch of play between the gears on a V6 or V8, it is the time for a new timing chain and sprockets. It is unusual for a timing chain to accumulate 200000miles, but I remember a car, with broken timing chain with only 160000miles on it. Signs of worn out timing chains are: Rough idle. Sluggish performance and poor economy. Sudden engine performance change including the inability to start the engine. Intermittent backfire through the intake manifold. Inconsistent ignition timing or a clattering noise coming from the front of the engine. It is a good idea to replace the water pump (coolant pump), and the thermostat while replacing the timing chain. The cost of the replace of timing chain is at least +$1300, but if is to bad, we pull out engine and replace both guides. In this case might cost more. Please do not be mad with me. I'm a certified dealer, and I'm trying to give you the necessary information to help you to deal with the problem.
Yes Ford Explorers are like that, The timing chain tensioners are plastic and need replaced with the chains. The engine has to be removed, please replace all chains and related parts at this time. This will save you money and downtime later. There are multiple chains on these Fords.
hi, as far as i can remember its impossible to do the work without removing the whole lot as you just have not got enough room to get the tools in to get the job done, you could contact your nearest main dealers technical department but im pretty sure that the last one we did here we had to take the whole lot out as we could not get the tools in as their just isnt enough room they build these engine big enough to fill the engine bay leaving you no room to carry out these type of repairs so taking the engine out is the only way your going to get this work carried out.
Let me know how you get on or if you need further assistance ok.
Make sure you purchase a workshop manual as this will give you all the correct settings your going to need ok
The front of the motor has to be removed to access the chains and guides [which may have broken] This can be done without removing the engine, but there are special tools needed to set the chain timing and also for removal of the crank dampner. It is not an easy task.