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RT/10 and GTS Discussions (1992-2002) For technical and general questions and discussions related to the GEN I/II RT/10, GTS, and ACR Vipers (1992-2002).
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Old 06-29-2008, 09:51 PM   #1
TexasPettey

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Default Gen1 Motor Mount Torque SPEC

Anyone know what the torque specs are for the motor mount bracket to engine block bolts/nuts are? My service manual has them listed as 65ft-lbs in the back of section 9. However, in the text description of the removal/install of the motor mounts, it calls out 30ft-lbs.
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Old 06-29-2008, 11:42 PM   #2
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Default Re: Gen1 Motor Mount Torque SPEC

It's 65ft. lbs
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Old 06-30-2008, 08:49 AM   #3
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Default Re: Gen1 Motor Mount Torque SPEC

For further info, the introduction section lists bolt sizes, grade, and max torque.
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Old 07-01-2008, 08:25 AM   #4
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Default Re: Gen1 Motor Mount Torque SPEC

Quote:
Originally Posted by TexasPettey View Post
Anyone know what the torque specs are for the motor mount bracket to engine block bolts/nuts are? My service manual has them listed as 65ft-lbs in the back of section 9. However, in the text description of the removal/install of the motor mounts, it calls out 30ft-lbs.
I think those are 3/8-24 threads. 65 ft-lbs is way high for that size screw. Most generic charts like the one Tom refers to in your shop manual would say 30 ft-lbs on on 3/8-24 screw. Even grade 8 is only 45 ft-lbs.
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Old 07-01-2008, 08:54 AM   #5
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Default Re: Gen1 Motor Mount Torque SPEC

Well, I tried 65ft-lbs last night. SNAP the bolt broke. The bolts are 3/8"-16 thread. I'm guessing that 65 ft-lbs is too much. I bought some grade 8 bolts to replace them, but I don't think I'll be trying 65 ft-lbs on those.
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Old 07-01-2008, 12:02 PM   #6
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Default Re: Gen1 Motor Mount Torque SPEC

Wow...why are you replacing bolts Chris? did you change out your motor mounts agian...snap the ones you have?
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