Torque specification

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offrink
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Torque specification

Postby offrink » Fri Apr 19, 2019 9:48 pm

I am trying to for the torque specifications for the oil pan bolts and haven’t found anything. That made me think about it and I don’t remember seeing any on any part of a cub. Is there a place that has that info?

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Dale Finch
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Re: Torque specification

Postby Dale Finch » Fri Apr 19, 2019 9:59 pm

Try this Blue Ribbon Manual from the links above:
CUB INFO>RUDI'S MANUALS>BLUE RIBBON SERVICE MANUALS>SPECIFICATIONS>ENGINE NUT AND BOLT TORQUE SPECS
or:
http://farmallcub.com/rudi_cub/www.cleancomputes.com/Cub/Blue%20Ribbon%20Service%20Manuals/GSS-1008%20Specifications/GSS-1008%20Specifications.htm

Just make sure you get those rear bolts tight, but don't strip the holes. Those rear bolts screw into the softer metal of the Rear Engine Seal Retainer, which is easy to strip, and would need to be helicoiled if that happened.
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Glen
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Re: Torque specification

Postby Glen » Fri Apr 19, 2019 10:07 pm

Hi,
The Cub service manual has torques for some bolts, below is the page.

http://www.farmallcub.info/manuals/gss- ... 001-09.jpg

If a bolt is not listed specifically, use the table below. It is made for modern bolts, with modern head markings. That is shown at the lower right of the page. :)

http://www.farmallcub.info/manuals/gss- ... 000-06.jpg

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Dale Finch
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Joined: Tue Apr 27, 2010 11:34 am
Zip Code: 27517
Tractors Owned: '51 Cub "Bernie" with Fast Hitch
'55 Cub "Bruno" with Woods 59 mower
'55 Cub "Bertha" with Woods 42 mower
'55 Cub "Ben" with Woods 42 mower
'56 Cub "Boris" with Mott Flail mower
Circle of Safety: Y
Location: NC, Chapel Hill

Re: Torque specification

Postby Dale Finch » Fri Apr 19, 2019 10:09 pm

I noticed that the Oil Pan was not actually listed, but this earlier post by Glen should help you:
http://farmallcub.com/phpBB2/viewtopic.php?f=1&t=102167&p=807839&hilit=bolt+torques#p807839

I type too slowly, Glen!! :lol: Glen is the Manual GURU!!!
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offrink
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Re: Torque specification

Postby offrink » Fri Apr 19, 2019 10:22 pm

I guess I didn’t look at the right spots! Thanks guys!
Last edited by offrink on Fri Apr 19, 2019 10:27 pm, edited 1 time in total.

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Glen
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Re: Torque specification

Postby Glen » Fri Apr 19, 2019 10:25 pm

Hi,
Thanks for the compliment Dale. :) :) :)

offrink
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Posts: 406
Joined: Thu Jan 02, 2014 4:23 pm
Zip Code: 49316
Tractors Owned: 1954 farmall fcub, 1954 farmall super m
Location: Caledonia, MI

Re: Torque specification

Postby offrink » Fri Apr 19, 2019 10:31 pm

Looking over the list I may have slightly over torqued them. I only used a short 8” socket wrench but I made them a little over snug. Sure I could still crank down more but I don’t think they needed more and I’m glad I didn’t. By the way, what is a good way to get to the middle back bolt? I used a U-joint adapter to swivel it and a thin extension but I’m not sure how to really get to it well without splitting the tractor.

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Dale Finch
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Tractors Owned: '51 Cub "Bernie" with Fast Hitch
'55 Cub "Bruno" with Woods 59 mower
'55 Cub "Bertha" with Woods 42 mower
'55 Cub "Ben" with Woods 42 mower
'56 Cub "Boris" with Mott Flail mower
Circle of Safety: Y
Location: NC, Chapel Hill

Re: Torque specification

Postby Dale Finch » Fri Apr 19, 2019 11:04 pm

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ricky racer
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Re: Torque specification

Postby ricky racer » Sat Apr 20, 2019 4:39 am

It is my opinion that the oil pan bolts are usually over tightened by most. What happens, in my view, is the tightened bolt squeezes down the pan gasket at the bolt location and can make gaps between the bolts causing leaks. I feel the best thing to do is flatten out the pan flange as good as you can get it, put a good sealer on the gasket and add Locktite to the bolts. Just get the bolts good and snug, not cranked down.
If you check the flatness of the oil pan flange, you'll likely see distortion of the flange from previous over tightening.
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Re: Torque specification

Postby TallCoolOne58 » Sat Apr 20, 2019 10:24 am

I like to use a nut driver for tightening gasket bolts not subject to pressurized liquids, i.e. gravity drain. You can get them snug, but not distort or crush the gasket, causing a potential leak, like is possible using a ratchet or power tool to tighten, since you do not have near the leverage. In these cases, normally a good thing.
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