Question about engine rebuild

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Dec 26, 2006 | 05:27 PM

#21

350zDCalb

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From: Albuquerque, NM

Quote:

Originally Posted by Eazzzzzzy

No need for me to use ur Quote Todd----I missed that as I was typing that last post ---But thats interesting ----Theres a lot that is new to me as far as very late model engines.

One thing I was curious about was the Balance procedures with the Z motors---------Is it still, weighing Crank pulley ,rods,pistons,rings,pins,flywheel etc. ???? And then removing metal to acheive Balance

weighing the rotating assembly: rod, piston, rod bearings, rings, piston buttons (in the case with the ED arias), then building bobweights, attaching to each crank journal, then spinning crank...

evry crank we have checked has been at least 3-18 grams off each side..the balanced product is to less than .5 grams!

Dec 26, 2006 | 05:33 PM

#22

Eazzy

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From: Barackville

Sorry --My posts were getting out on sync with urs----Thats great and its not overkill ---Its the way it needs to be done.

I relize the Piston to Wall clearence has tightened up as far as Cast Pistons and Forged but didnt know how much.

There was a time that a properly clearanced Forged piston sounded like a can of rocks till it heated up

Dec 26, 2006 | 05:35 PM

#23

Eazzy

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From: Barackville

Quote:

Originally Posted by 350zDCalb

Excellent ---Thanks

Dec 26, 2006 | 06:55 PM

#24

350Zzzz

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From: Connecticut

Quote:

Originally Posted by Cannysage

when you guys get your engine rebuilt, they put in an engine that they've already built, right? How do you know if the engine isn't some previously blown pos, with 100k miles on the block, that's been rebuilt? If your new car's got only 5k on it, wouldn't you rather rebuild your own?

There is really not much you can do except check the VIN # and the more reason you want to deal with someone you know or comes strongly recommended. You have quite a few options available, shops that have been tried & tested; and supported by many on this site.

Using your own block, that is if it is usable, would mean a longer turn around time, and depending on what you wish to do.

G
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