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8hp Kohler Torque Specs


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#1 BTS ONLINE  

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Posted December 11, 2012 - 07:57 PM

I am rebuilding a 8hp Kohler Magnum engine, i have a book that says the (used) connecting rod should be torqued to 200"lb, then i found online that it should be torqued to 105"lb and then someone told me 100"lb.
I was wondering which is right?
Thanks for any info

#2 JDBrian OFFLINE  

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Posted December 11, 2012 - 08:00 PM

If you have the correct factory manual for your engine I'd go with that value unless someone can give you a good explanation for using a different value.

#3 boyscout862 ONLINE  

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Posted December 11, 2012 - 09:13 PM

Its been 15+ years but I remember torquing, backing off, and retorquing the rods on Kohlers. Check the official manual carefully those rods are sensitive to the proper torque. There are two different rods used so you need to figure that out. Try http://gardentractor...service-manual/

#4 Farmlife OFFLINE  

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Posted December 12, 2012 - 05:22 AM

yea I would go with the manual. Everyone has their own way of doing things and I'm sure some may be right but if you have a manual available to you, use it.

#5 BTS ONLINE  

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Posted December 12, 2012 - 10:13 AM

I have a Chilton repair manual, it has the specs of lots of different brands and Kohler being one of them.
The book just gives the specs for the size of engine and not the brand, it says for a 8hp it should be 200"lb and it also doesn't specify "used" or "new"
Thanks for everyone's help

#6 WNYTractorTinkerer ONLINE  

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Posted December 12, 2012 - 11:50 AM

Here's the specs from the Kohler K-series "bible":

Kohler Rod Torques.jpg

#7 JDBrian OFFLINE  

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Posted December 12, 2012 - 12:04 PM

You should download the Kohler k series manual from their site. Better to have the manufacturers info. than 3rd party IMO.

#8 WNYTractorTinkerer ONLINE  

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Posted December 12, 2012 - 04:16 PM

You should download the Kohler k series manual from their site. Better to have the manufacturers info. than 3rd party IMO.


That picture was from the Kohler K-series service manual BTW! Trust it!

Edited by WNYTractorTinkerer, December 12, 2012 - 04:17 PM.


#9 BTS ONLINE  

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Posted December 13, 2012 - 08:28 AM

Thanks for all of the info, i will start resembling today.
Thanks again :worshippy1:

#10 JDBrian OFFLINE  

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Posted December 13, 2012 - 08:30 AM

That picture was from the Kohler K-series service manual BTW! Trust it!


By 3rd party I meant the Chilton manual, not your kohler manual exerpts.
  • WNYTractorTinkerer said thank you

#11 HankS OFFLINE  

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Posted December 14, 2012 - 11:23 AM

Here is a useful link with specs on a lot of different engines. If you look at the what it says for the K181 connecting rods it may explain why you've gotten different specs.

Small engine specs




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