Main cap bearing bolts

[Zach Newton]

Can you buy new main cap bearing bolts for the 1.8L

 

[melsg5]

I am unaware of any supplier.
I assume you dont want to reuse the old ones.

 

[92 Sunbird LE]

Yes , the factory ones are "Torque to Yield " bolts but these ARP Opel studs are supposed to be the same...?

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Doug in P.R.

 

[92 Sunbird LE]

VAUXHALL ASTRA CAVALIER MAIN BOLT KIT 20 C20XE C20LET C20NE REDTOP 90234048 75MM | eBay

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About $34 US Dollars.

Doug in P.R.

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[Zach Newton]

Ok thank you I didn’t know they where supposed to be torque to yield the repairs manual I have said torque them to 70 foot pounds

 

[92 Sunbird LE]

They are throw away bolts aka "torque to yield " and require new ones, but in old JBody forum posts , if your engine isn't turbo , they " should " be fine to reuse.

Not sure if that is correct....

Doug in P.R.

 

[Zach Newton]

So since I’m not torquing them to the right spec should I use thread locker

 

[melsg5]

So since I’m not torquing them to the right spec should I use thread locker

Why arent you using the correct torque?
How are you calculating a different number?

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[92 Sunbird LE]

The guy in England or Australia that still builds these engines just told me to replace them .( Rod and Main Bolts)

He said ARP's are reusable if within spec .... stretch guage.

" Super Ron" on YouTube

Doug in P.R.

 

[92 Sunbird LE]

H

VAUXHALL ASTRA CAVALIER MAIN BOLT KIT 20 C20XE C20LET C20NE REDTOP 90234048 75MM | eBay

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About $34 US Dollars.

Doug in P.R.

These are 75 mm , 65 mm are also available....

Pardon Our Interruption...

www.ebay.com

Doug in P.R.

 

[92 Sunbird LE]

You could just size them up at a local bolt store and get them there. As as long as they are the same hardness , size and length.

The Cadillac guys do it since you can't buy them new anymore other than ARP which are expensive.

Doug in P.R.