Mave
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| posted on 15/11/05 at 04:51 PM |
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Torque values LSD driveshafts?
Can anyone tell me how much the bolts connecting the driveshaft to the LSD diff should be torqued? (so I'm talking about the blue bolts in the
picture)
Thanks!
Marcel
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RichieC
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| posted on 15/11/05 at 05:14 PM |
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From the manual:
Driveshaft-Diff and Driveshaft-Hub are:
38-43 NM or 28-32 LbFt
Rgds
Rich
[Edited on 15/11/05 by RichieC]
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Mave
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| posted on 15/11/05 at 06:33 PM |
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Thanks!
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Stu16v
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| posted on 15/11/05 at 07:17 PM |
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But it is an extremely good idea to re-check these bolts after driving the car a few miles...
Dont just build it.....make it!
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JoelP
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| posted on 15/11/05 at 08:33 PM |
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is threadlock advisable?
edit: if you do threadlock them, its worth replacing them with proper hex head bolts, for ease of future removal.
[Edited on 15/11/05 by JoelP]
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Rorty
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| posted on 15/11/05 at 09:34 PM |
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There isn't room for conventional hex bolts, but quality socket heads will be fine. It's those damned spline-drive bolts that turn to
cheese that are a bugger to remove.
Cheers, Rorty.
"Faster than a speeding Pullet".
PLEASE DON'T U2U ME IF YOU WANT A QUICK RESPONSE. TRY EMAILING ME INSTEAD!
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RichieC
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| posted on 15/11/05 at 09:47 PM |
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Does anyone know the dimensions of these bolts, I agree, lose the Torx type and fit quality socket cap allen bolts.
Rgds
Rich
[Edited on 15/11/05 by RichieC]
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NS Dev
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| posted on 16/11/05 at 09:25 AM |
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M8 x 50 grade 12.9 Caphead bolts.
I install them without loctite in my autograss racing car and they never come loose.
I am VERY careful about it though.
I wash the threads in the CV cups with solvent and clean the bolts in solvent, then LIGHTLY oil the threads with gear oil.
I then put them all in and nip up, before tightening opposing bolts to their final torque, (with a torque wrench!) to 48nm.
I use 48nm which is a tad higher than the "book" figure, as I calculated this from scratch for that bolt size (using the Bosch automotive
"bible" formulas) and after destructively tightening some top quality bolts................they break consisitently at 68 to 72 nm.
After torquing them all up I put a line of tippex across from the CV to the bolt head. That way you can see at a glance if they have loosened as the
tippex will crack visibly.
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britishtrident
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| posted on 16/11/05 at 02:04 PM |
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Clean the threads and use locite.
When the MK1 Fiesta 1300 was first introduced I saw a few on which the drive shaft bolts had worked loose on. We reffited them with new bolts and a
dab of loctite and a bit of extra torque no problems after that. After a few months Ford must have revised the tightening procedure on the
production line because we never saw any after that.
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RichieC
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| posted on 16/11/05 at 05:15 PM |
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quote:
Originally posted by NS Dev
M8 x 50 grade 12.9 Caphead bolts.
Cheers mate, 6 per shaft (at the diff end)??
Rgds
Rich
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NS Dev
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| posted on 16/11/05 at 06:01 PM |
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yep, 6 per shaft at each end (so obviously a full set is 24)
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RichieC
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| posted on 16/11/05 at 06:02 PM |
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Just emailed me bolt man and he doesnt do them in 12.9 grade 
Ill have to find somewhere else - Dont suppose Ford do them at a reasonable price do they?
Was in today for some caliper bolts but all of them had been discontinued - bonus was, the screen gives grade and sizes so you can merrily get them
eslewhere
Rich
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Rorty
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| posted on 17/11/05 at 12:36 AM |
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Ask for Class 12.9 and you might get a result.
Cheers, Rorty.
"Faster than a speeding Pullet".
PLEASE DON'T U2U ME IF YOU WANT A QUICK RESPONSE. TRY EMAILING ME INSTEAD!
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