Do I need to stretch my rod bolts?

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03-29-2011, 11:14 AM

hybrid1990crx

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Do I need to stretch my rod bolts?

I had my block, crank, rods, and pistons sent to the machine shop to bore, hone, pressure test, balance, clean, etc. I also had them spec all my bearing clearances.

Would they have already stretched my rod bolts when checking for bearing clearance? After getting everything back I noticed that ONE rod has the bearings in it. Maybe they only checked the one and just got all the same size for the rest?

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03-29-2011, 02:22 PM

Natural Aspirations

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Re: Do I need to stretch my rod bolts?

Maybe you could call and ask?

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03-29-2011, 04:59 PM

EG1834

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Re: Do I need to stretch my rod bolts?

Quote:

Originally Posted by hybrid1990crx

I had my block, crank, rods, and pistons sent to the machine shop to bore, hone, pressure test, balance, clean, etc. I also had them spec all my bearing clearances.

Would they have already stretched my rod bolts when checking for bearing clearance? After getting everything back I noticed that ONE rod has the bearings in it. Maybe they only checked the one and just got all the same size for the rest?

Uh oh, thats a bad sign. If they were too lazy to check the other bearings, who knows what else they were too lazy to do.

If they used a dial bore gauge to check the clearance, there should be tiny "tracks" in the bearing surface. It may be harder to see on stock or OEM type bearings.