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can we replace the pistons.....

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Old Dec 19, 2007, 04:28 AM
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can we replace the pistons.....

i want to know if we are able to drop the oil pan, replace the pistons, rods and rings without having to take the motor out.

has anyone done this? if so whats the down time like? there is a motor shop near me, and if its not hard to do, i want to replace my lower end (keep the same crank).
Old Dec 19, 2007, 05:02 AM
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also found this

http://www.amsperformance.com/store/...oducts_id=1711

any good? i mean im not questioning AMS, just never heard of Manley rods.
Old Dec 19, 2007, 05:19 AM
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Manely rods are a pretty popular brand. As long as you remove the crossmember i dont see why you couldnt do this in the car.
Old Dec 19, 2007, 05:47 AM
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yea i was thinking the same thing. but i was wondering who here has actually done it. for some reason i think scorke has when he installed his stroker.
Old Dec 19, 2007, 05:52 AM
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yeah it's been done. A guy here local has also did it. I would've tried that route but I wanted to get the block on a motor stand and hone it.
Old Dec 19, 2007, 05:57 AM
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Yes it can be done and i have doenthis may times.
If there is no damage and the change of pistons and rods does not require engeneering work then your lucky. if you run into problems its 2X the effrot to remove the engine out of the car as the box and transfer case is still attached.

pitty you cant do this on a subaru......there you have no choice!
Old Dec 19, 2007, 05:59 AM
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well i have 36,000 miles on the motor and no problems so far. im assuming the block is fine.

so this has been done. thats good news.
Old Dec 19, 2007, 06:36 AM
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Originally Posted by popadel
pitty you cant do this on a subaru......there you have no choice!
Porsches too

I agree on getting the block honed though. Especially if you are using new rings.
Old Dec 19, 2007, 06:42 AM
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The head will have to come off.....then you can keep the block in the car. If you are going thru all that trouble, it will make things much easier to drop the entire thing. Check main bearings, properly clearance the bores etc. Just my two cents.
Old Dec 19, 2007, 06:42 AM
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Originally Posted by MR Turco
Porsches too

I agree on getting the block honed though. Especially if you are using new rings.
the block would be honed if i did do this. i would just have them hone it through the bottom
Old Dec 19, 2007, 06:44 AM
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Originally Posted by deadbeatrec
the block would be honed if i did do this. i would just have them hone it through the bottom
Not a good idea even if it could be possible to be done right. Which I can 100000% guarantee that it can not be.
Old Dec 19, 2007, 06:46 AM
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Originally Posted by deadbeatrec
the block would be honed if i did do this. i would just have them hone it through the bottom
you can hone it through the top, just remove the head. I definately would not do it through the bottom
Old Dec 19, 2007, 06:47 AM
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Originally Posted by SiCKlEyWiKeD
you can hone it through the top, just remove the head.
ok so the head would have to be removed. no biggie i dont think. the block would still be in the car.
Old Dec 19, 2007, 06:49 AM
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my question is, how would they hone it while the block was still in the car? is that possible?
Old Dec 19, 2007, 06:52 AM
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I dont think you would want to hone with the block in the car. I am pretty sure you would want to remove the crank and clean the block after honing. Doesnt honing make small metal shavings?


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