Torque for engine case studs
Club Member
Joined: Mar 2009
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From: Niles Canyon Ca.
OP do not go strong arm on the studs trying to seal it, doesn't take much to distort and warp a washer seating area, dealt with a number of cases been hashed this way by owners.
Seasoned HDF Member
Joined: Jul 2014
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From: Cental, MI
This stuff works much better for seepers, try Loctite # 545, hydraulic thread sealant, I use it on custom brake setups where sometimes the chrome on aftermarket parts isn't 100% true and you get weeping at banjo fitting or flares, seals problem case studs extremely well and acts a mild thread locker.
https://www.amazon.com/Loctite-30342...83GSXVCZS7PS61
OP do not go strong arm on the studs trying to seal it, doesn't take much to distort and warp a washer seating area, dealt with a number of cases been hashed this way by owners.
https://www.amazon.com/Loctite-30342...83GSXVCZS7PS61
OP do not go strong arm on the studs trying to seal it, doesn't take much to distort and warp a washer seating area, dealt with a number of cases been hashed this way by owners.
Thanks Twizted one!!!!! Well done.
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Stellar HDF Member
Joined: Mar 2016
Posts: 2,285
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From: Eastern NC
The first place I looked for torque specs was in the manual.
From the torque specs of the manual ......when grade of studs are unknown use values 2,5 and 8. For 5/16 studs the value spans 12 to 29........in other words HD says you are on your own on this one. What grade are these studs guys??
Seasoned HDF Member
Joined: Jul 2014
Posts: 8,627
Likes: 3,389
From: Cental, MI
Hmmm Good question... prolly need to Identify by part number [oops hard trick] then identify specs on that part... Good Luck,
But, I would be tempted to use Google myself...
or My service book for the 1993 Shovelhead states. On Page 3-2
Crankcase Stud Nuts .... 12-15 lbs
Crankcase Bolts .... 22-26 lbs
But, I would be tempted to use Google myself...
or My service book for the 1993 Shovelhead states. On Page 3-2
Crankcase Stud Nuts .... 12-15 lbs
Crankcase Bolts .... 22-26 lbs
Last edited by Racepres; Sep 17, 2020 at 07:36 AM.
Club Member
Joined: Mar 2009
Posts: 66,141
Likes: 51,484
From: Niles Canyon Ca.
Thanks guys,. With all do respect, why would I use google when I have the manual ? Simply identifying the fasten is not as simple as you suggest.
The first place I looked for torque specs was in the manual.
From the torque specs of the manual ......when grade of studs are unknown use values 2,5 and 8. For 5/16 studs the value spans 12 to 29........in other words HD says you are on your own on this one. What grade are these studs guys??
The first place I looked for torque specs was in the manual.
From the torque specs of the manual ......when grade of studs are unknown use values 2,5 and 8. For 5/16 studs the value spans 12 to 29........in other words HD says you are on your own on this one. What grade are these studs guys??
Seasoned HDF Member
Joined: Jul 2014
Posts: 8,627
Likes: 3,389
From: Cental, MI
My above post says '93... but of course... it is supposed to be '83.. I don't see trying to second guess the things if the Manual for that year... 1983, says what torque is for what fasteners... "Stud nuts" is the nuts on the thru bolts, and Bolts is bolts... the blind ones...
Unless someone put threaded rod in there!!!
Unless someone put threaded rod in there!!!
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