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Do I need to replace rocker arm bolts?

Old 06-21-2019, 09:25 PM
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Default Do I need to replace rocker arm bolts?

This is a 1994 Buick Regal with a 3.8L "Series 1" we are putting back together after changing the head gaskets. Its hard to find info on the series 1.
I ran across several posts about replacing the rocker arm pedestal bolts because they are torque to yield but that was from folks working on series 2 and 3 engines.

My GM service manual for the car says to torque the bolts to 18ft lbs + 70 degrees.... That would make it a torque to yield bolt wouldn't it?

I will post the info from the manual below... It says to inspect and clean any thread locker from the bolts.

That is another issue. we installed he rockers today and did not use any thread locker...

So what should we do now?





Thanks
Anna
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Old 06-22-2019, 03:32 PM
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The info is correct. You should tear it back down and do it right. Be sure the threads are clean and dry when you assemble with a NEW bolts that are coated with the loctite.
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Old 06-22-2019, 03:54 PM
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Thanks Carfixer007.
I agree and was just wanting a second opinion.... We haven't put the valve covers on yet so its not like we have to tear it all back down...
Now the problem is locating new bolts. I have found conflicting info on that. According to
https://zzperformance.com/products/rocker-arm-bolts the part number is GM part # 24503515. According to SR, that bolt does not fit a 94 with 3.8.
according to
https://www.gmpartsgiant.com/parts/g...r=(e=L27;t=M13)
That bolt does fit...
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Old 06-22-2019, 05:26 PM
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My info is from 1999 and I'm sure they have a newer part number for the updated bolts.
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Old 06-30-2019, 01:39 AM
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Just wanted to follow up in case anyone else needs to replace the rocker bolts on a 1994 Buick Regal with a 3.8
GM part #24503515 is the correct rocker bolt.
I called 4 different GM parts departments and was told the bolts will fit a series 1 engine. I ordered them and they were the same bolts we took out.
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Old 07-01-2019, 02:12 PM
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Originally Posted by annaleigh View Post
Just wanted to follow up in case anyone else needs to replace the rocker bolts on a 1994 Buick Regal with a 3.8
GM part #24503515 is the correct rocker bolt.
I called 4 different GM parts departments and was told the bolts will fit a series 1 engine. I ordered them and they were the same bolts we took out.
Thanks for letting us know!

I'm sure someone in the future will find this to be valuable information.
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