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  1. #1

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    Rebuild: case is split, a couple pics to analyze...

    I got the case separated finally and I took a picture of one of the main bearings. Please look and tell me what you think.

    I also took a picture of a nice piece of aluminum I found rattling around in the case. I never heard this piece until I got the case separated but I fished it out and I have no idea where the heck it came from!

    Last picture is of the big rod ends. Do they come from the factory paired and numbered 1 2 and 3? Someone has etched the numbers into the caps and the rods...

    Thanks all for your help with this!
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  2. #2
    A smart admits!A wicked excuses!An idiot insists! mitsakosgt's Avatar
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    First pic-Time for a rebuilt...

    Third pic-Someone had the engine apart before....

    Second pic-And he left the aluminum piece in it,maybe from a broken piston.....

  3. #3
    Got Boost? psycho rxp's Avatar
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    The second pic, could be a part of the block directly across from the SC hole, behind the timing chain, where the SC shaft may have broken and contacted the block, from an earlier failure??

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  5. #4

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    Nov 2011
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    Hmm its a 2002 GTX n/a but that doesn't really mean anything haha. No telling what year motor is in it. Any way to tell? Yeah, I was afraid the motor had been out before just because of the two hooks on the head look like they'd been lifted on.

    The bores all still have the cross hatching in them and look great. Is it possible to use new non-oversized rings on the pistons? I've seen several places only seem to sell the +.5mm rings.

    I haven't got the crank completely out yet but from whqat I can tell the crank journals look good. I'll measure when it's out to be sure. Is there anything special I should know when rebuilding one of these? Thanks again for the help everyone!!!

    I've seen the term CP pistons used a lot with boost on this site. What does that stand for?

    Parts I'm thinking of so far:
    New gasket set
    Net stretch bolt set
    New rod bolts
    New flywheel bolts
    New piston rings
    New main bearings
    New countershaft bearings
    New thrust washers

  6. #5
    To answer some of your questions:

    1. Those main bearings look really worn. Could be due to really dirty oil, probably because whoever worked on it before didn't have good shop cleaning practices.

    2. Rods are not numbered from factory. They are scored then broken at the seams to make a matched set. They will only go on one way and you cannot mix them.

  7. #6
    Got Boost? psycho rxp's Avatar
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    Quote Originally Posted by WS6 GreeN View Post
    Hmm its a 2002 GTX n/a but that doesn't really mean anything haha. No telling what year motor is in it. Any way to tell? Yeah, I was afraid the motor had been out before just because of the two hooks on the head look like they'd been lifted on.

    The bores all still have the cross hatching in them and look great. Is it possible to use new non-oversized rings on the pistons? I've seen several places only seem to sell the +.5mm rings.

    I haven't got the crank completely out yet but from whqat I can tell the crank journals look good. I'll measure when it's out to be sure. Is there anything special I should know when rebuilding one of these? Thanks again for the help everyone!!!

    I've seen the term CP pistons used a lot with boost on this site. What does that stand for?

    Parts I'm thinking of so far:
    New gasket set
    Net stretch bolt set
    New rod bolts
    New flywheel bolts
    New piston rings
    New main bearings
    New countershaft bearings
    New thrust washers
    CP =Carrillo Products
    You can buy New Std bore rings for OEM pistons.
    Replace the timing chain while apart
    Check, and replace oil pumps if needed
    You should check the head while out (surface, and valve job)
    U should probably hone the block to get the new rings to seat better.

    http://partsfinder.onlinemicrofiche....AFT-W/-PISTONS

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