broke piston
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Joined: Jun 2003
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broke piston
after what i thought was a blown headgasket, turns out to be a broke piston on my 300 6 cyl, 1982 f150. i found out the oil pan will not come off because it hits transmission. is it possible to raise tran, or do i have to pull motor just to get oil pan off.also how do you fix piston. i know it has to be drove from the bottom up. i am learning as i go. i might go on and pull motor just to have the learning experiance. thanx
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Joined: Oct 2001
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From: Juneau, AK
broke piston
prolly depends on how broken your pistion is, but you usually use a ridge reamer before removing your old pistion. this tool removes the ridge which is usually present at the top of the cylinder after years of use. with a broken piston you will want to inspect your cylinder wall for damage/odd wear as well.
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Joined: Jan 2001
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broke piston
If you are trying to remove the piston w/o pulling the motor, you need to unbolt the motor mounts and jack up block. (Assuming you have taken the head off) Put a piece of wood under the harmonic balancer and jack up the motor until you can remove the oil pan. You may have to unbolt the oil pump (had to with a 302) for more clearance. After you remove the pan put blocks under the motor mounts and drop the jack so you can rotate the crank(put tranny in neutral). You will need to remove the piston ridge before pusing the piston out. Afterwards take the nuts off the connecting rod and tap the side with a soft mallet to knock the connecting rod cap lose. Finally push the piston out the top with the opposite end of the same mallet.
Definately check cylinder wall wear before replacing piston. It may be cheaper and easier to replace the motor depending on wear and mileage.
Good luck,
Jeff
Definately check cylinder wall wear before replacing piston. It may be cheaper and easier to replace the motor depending on wear and mileage.
Good luck,
Jeff
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broke piston
Originally posted by jeff967
If you are trying to remove the piston w/o pulling the motor, you need to unbolt the motor mounts and jack up block. (Assuming you have taken the head off) Put a piece of wood under the harmonic balancer and jack up the motor until you can remove the oil pan. You may have to unbolt the oil pump (had to with a 302) for more clearance. After you remove the pan put blocks under the motor mounts and drop the jack so you can rotate the crank(put tranny in neutral). You will need to remove the piston ridge before pusing the piston out. Afterwards take the nuts off the connecting rod and tap the side with a soft mallet to knock the connecting rod cap lose. Finally push the piston out the top with the opposite end of the same mallet.
Definately check cylinder wall wear before replacing piston. It may be cheaper and easier to replace the motor depending on wear and mileage.
Good luck,
Jeff
If you are trying to remove the piston w/o pulling the motor, you need to unbolt the motor mounts and jack up block. (Assuming you have taken the head off) Put a piece of wood under the harmonic balancer and jack up the motor until you can remove the oil pan. You may have to unbolt the oil pump (had to with a 302) for more clearance. After you remove the pan put blocks under the motor mounts and drop the jack so you can rotate the crank(put tranny in neutral). You will need to remove the piston ridge before pusing the piston out. Afterwards take the nuts off the connecting rod and tap the side with a soft mallet to knock the connecting rod cap lose. Finally push the piston out the top with the opposite end of the same mallet.
Definately check cylinder wall wear before replacing piston. It may be cheaper and easier to replace the motor depending on wear and mileage.
Good luck,
Jeff
