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My sons 96 Ranger 2.3 L hit a piece of metal on the interstate, busted a hole in his oil filter and ran it without oil. Shortly afterward the timing belt "Broke".
We needed to replace clutch and wanted to check engine over carefully so we have pulled the engine. Now I am having trouble getting the pully bolt off even with my impact wrench. Is this reverse threaded or is there a "secret" to removing this I am not aware of.
Is there anything in specific that I should look for otherwise on this engine that we should replace or check, it did not lock up when run without oil when all hell broke loose he shut it down, but this timing belt "Breaking" has me concerned.(enough to pull the engine)
It is a right hand thread.
The camshaft was without oil 'First', so it locked up, and shredded the teeth in the belt. My bet. Try turning the camshaft...
I would pull the pan while you have it out, and make sure that your oil pump intake is clear. Some years had a gasket that disintegrated and plugged the pump pickup. This is an opportunity to inspect that, and also check the rod and mains for clearance and wear. You may have lucked out, but it is worth it to check given all the labor you will have invested, this is just a smidgen. Plus, you get a well-sealed oil pan, no?
You could just take the head to a machine shop, have them inspect and/or replace the cam bearings and clean up the cam journals for less than it would cost for a valve job, or get a re-manufactured head or used cylinder head.
The belt shredded because all of the inertia of the crankshaft, rods and pistons -and the vehicle through the locked drivetrain - kept going while the camshaft stopped. Right now.
tom
Thanks for the response, I really appreciate the information, it is just what I wanted to know. It is about what I expected and I am hoping for the best. I will take your advice, and post how it went.
Are you located in a 'salt belt' state? In other words, is the bolt corroded into the crankshaft nose? You might have to get a LARGE breaker bar, or two. One for each end of the crankshaft. Or pick it up, put it in the trunk/bed and haul it over to your local machine shop. They'll charge you a bit, but maybe their impact has more torque. I used a ratchet wrench and a piece of pipe, with the truck in 4th gear, and the wheels blocked, emergency brake pushed down hard, and it was difficult. However, this truck never lived up north, and started life in northern Calif.
tom
The bolt on the crank on this engine is hard to get loose. If you have a good air impact it can be done fairly easy if your not so lucky you will need a socket 1/2 in. drive socket a breaker bar a piece of pipe to lengthen that bar and someway of holding the crank. They are tight. Your shearing of the timing belt was most likely caused by running without pressure to the cam bearings as was mentioned. How many miles on the belt? You can expect a life of about !00,000 plus from them. I changed mine at 130 and it still looked ok but why wait untill you have to drag it home. kotzy
Thanks for the input, I do have an air impact and it has not budged it yet, I have been a little tentative but I am determined and will get it off tomorrow ecvening.
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