Question about 1997 Ford F150 Regular Cab
I have a 1997 Ford F-150 regular cab pickup with a 4.2 liter 256 CID engine. After finding out I had a hydro lock I had the engine rebuilt from a local mechanic. I put a new crank and bearings, new piston and connecting rod and all new rings. Once the job was complete I drove the truck for about 300+ miles and the engine began making a very faint tapping sound on slight inclines if I was stopped and as I accelerated it would make this tapping sound as if something was rubbing against something else. As I continued to drive it, the sound got progressively louder to where it made the sound all the time. Apon further inspection the mechanic could push and pull the crank back and forth so the engine had to come out again, the crank was shot in the middle where it is bolted (Main Bearings?) anyway the auto parts dealer said there has been a few factory defective cranks and after alittle persistence we got a new crank and bearings. After about three weeks we recieved another crank and bearings and they were installed. I have had the truck for two days and only have about fifty miles on it and that sound is happening again very faint. The place where we got the crank and bearings said that the Torque converter had to have exploded to do this and my question is, can the torque converter which doesnt look like anything is wrong actually drive and function correctly but cause this problem with the crank. or is there something going on deeper or did this Mechanic miss something or not put the engine together correctly? I am in need of the answer as soon as possible. The truck is parked and I have no intentions on moving it until I have the answer as to not cause any more damage. thank you in advance.
If the torque converter failed to that extent the truck would not move. Most ford converter's have a drain plug. If yours does drain it and see if any bearings or bearing remains come out. Even still, a blown torque converter on a stock production engine won't break the crank.
Posted on Jun 23, 2009
If the transmission is functioning properly, and always has been, it couldn't possibly cause damage to the engine. It's impossible to lay blame on the mechanic, or the parts supplier, until it is disassembled again.
If you want this nightmare over with, go to an auto wrecker, and get another engine. There are plenty of low mileage engines out there, and no rebuilt is ever as good as a new or factory one. If you can get some of your money back from all this, spend it on a used one. Hey... you drive on used parts every day.
Posted on Jun 23, 2009
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Posted on Jan 02, 2017
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