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Oil pump gear nut torque spec?

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Old 07-05-2013 | 12:45 PM
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Hai gebissen's Avatar
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Default Oil pump gear nut torque spec?

I have tried searching on this forum but I cannot find a definitive spec. I have a new oil pump gear (steel) and I want to torque it before I forget and then have to post a month from now that my gear came off and my valves are bent.

Thanks,

Eric
Old 07-05-2013 | 12:49 PM
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IIRC M8 (13 mm) is 15 ft lbs (20 Nm). Or is it M10 (17 mm) then 29 ft lbs (40 Nm). If you are replacing the aluminum gear with a steel one, remove the thin washer behind the gear. Use loctite on the nut to prevent disaster.
Old 07-05-2013 | 12:50 PM
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That's in the "all other" specs based on bolt and nut size.
Old 07-05-2013 | 02:21 PM
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Thanks. Thin washer removed and Loctite applied.
Old 07-05-2013 | 02:27 PM
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I used the spec on Dwaynes tbelt epic as well blue loctite.......3k kms later no worries
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Old 07-05-2013 | 02:35 PM
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Hai,
Keep this link.


https://docs.google.com/file/d/0BzC7...it?hl=en&pli=1
Old 07-05-2013 | 03:15 PM
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Originally Posted by Hai gebissen
I have tried searching on this forum but I cannot find a definitive spec. I have a new oil pump gear (steel) and I want to torque it before I forget and then have to post a month from now that my gear came off and my valves are bent.

Thanks,

Eric
I can first hand attest that that is a feeling you NEVER want to feel! lol

Originally Posted by Leon Speed
IIRC M8 (13 mm) is 15 ft lbs (20 Nm). Or is it M10 (17 mm) then 29 ft lbs (40 Nm). If you are replacing the aluminum gear with a steel one, remove the thin washer behind the gear. Use loctite on the nut to prevent disaster.
The 29 Ft/lbs sounds about right from memory. If you don't use blue loctite (Rl'ers are about split 50/50), make sure you clean ANY oil from the threads on the nut the shaft and faces. I suspect that that may have been the cause of my disaster.



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