RoadkillUK
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| posted on 27/7/03 at 11:50 AM |
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Suspension bolts
It's come to the stage (nearly) where I'll be bolting the car together so I'm wondering what size bolts will I be needing for my
suspension? The brackets and suspension parts are from MK.
Roadkill - Lee
www.bradford7.co.uk
Latest Picture (14 Sept 2014)
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MK7
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| posted on 27/7/03 at 04:45 PM |
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I've got an MK and they supplied me with M12x70mm HST (8.8) galvanised bolts
Russell
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RoadkillUK
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| posted on 27/7/03 at 08:58 PM |
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Cheers MK7, can anyone confirm that MK sells the same brackets for the 'book' locost that he does for the 'Indy' ?
Roadkill - Lee
www.bradford7.co.uk
Latest Picture (14 Sept 2014)
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Dick Axtell
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| posted on 28/7/03 at 07:03 AM |
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quote:
Originally posted by RoadkillUKCheers MK7, can anyone confirm that MK sells the same brackets for the 'book' locost that he
does for the 'Indy' ?
Hi,
My "book" chassis came from MK, and I've just discovered that the coilover (damper) fixing brkts are drilled to accept 1/2"
bolts, but the rest of the brkts (wishbones, panhard rod, trailing arms) are all drilled at 12mm, so I've used 12 x 60mm bolts here. For the
dampers, 1/2" unf x 2.5".
ATB
Dick
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spy
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| posted on 28/7/03 at 09:55 AM |
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My "book" chassis came from MK, and I've just discovered that the coilover (damper) fixing brkts are drilled to accept 1/2"
bolts, but the rest of the brkts (wishbones, panhard rod, trailing arms) are all drilled at 12mm, so I've used 12 x 60mm bolts here. For the
dampers, 1/2" unf x 2.5".
ATB
Dick
Yep, 1/2" bolts are very commonly used on dampers. Roadkill, double check whether you've got 12mm or 1/2"(12.7mm). 0.7mm is a lot
of difference
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MK7
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| posted on 28/7/03 at 12:00 PM |
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The wishbone brackets on my Indy measure 50mm (outside edge to outside edge), the shock absorber brackets measure 40mm.
I can pass a 1/2 inch drill bit through the top shock absorber bracket with a bit of slack, the same bit won't pass through the lower bracket.
I'm not sure if this is an issue but I'm planning to use M12 bolts all round (shocks and wishbones). Someone stop me if this is likely to
be a problem 
Russell
[Edited on 28/7/03 by MK7]
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RoadkillUK
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| posted on 28/7/03 at 03:39 PM |
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Thanks all, bought 22 M12's and 6 1/2" bolts today, can't really check at the moment as the chassis was trailered to
'Peateys' in Yeadon for blasting and powder coating, should be ready to collect on Friday.
Roadkill - Lee
www.bradford7.co.uk
Latest Picture (14 Sept 2014)
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Dick Axtell
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| posted on 28/7/03 at 05:33 PM |
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quote:
Originally posted by MK7: I'm not sure if this is an issue but I'm planning to use M12 bolts all round (shocks and
wishbones). Someone stop me if this is likely to be a problem
Got my shocks from Darren George (doz@gtscougar etc.), and the 12mm bolts won't fill the sleeves in the end-fittings(0.7mm slop!). A 1/2"
bolt is really necessary (unless you get some foreign Euro-compliant dampers).
Work-in-Progress: Changed to Zetec + T9. Still trying!!
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RoadkillUK
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 posted on 29/7/03 at 11:17 PM |
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Am I correct in thinking that the thread on the bolt shouldn't start until it has passed through the bracket? i.e. no thread inside the
bracket. 
Roadkill - Lee
www.bradford7.co.uk
Latest Picture (14 Sept 2014)
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leto
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| posted on 30/7/03 at 06:59 AM |
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quote:
Originally posted by RoadkillUK
Am I correct in thinking that the thread on the bolt shouldn't start until it has passed through the bracket? i.e. no thread inside the
bracket.
If you going to drive your car only in theory: No. For any use in reality: Yes.
Cheers Leif
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RoadkillUK
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| posted on 30/7/03 at 12:47 PM |
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In which case I have the wrong bolts 
£20 too, nevermind, I'll take them back on friday when I can get a measurement from the chassis.
Roadkill - Lee
www.bradford7.co.uk
Latest Picture (14 Sept 2014)
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Ben_Copeland
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| posted on 31/7/03 at 12:14 AM |
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I've come up against this now too... need to get the right bolts for the job.
So far i have used XE headbolts with the thread ground down a bit. Just to get everything together. Until I can get the proper bolts. Which will
hopefully be soon !!!
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Rorty
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| posted on 31/7/03 at 12:52 AM |
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RoadkillUK:quote:
Am I correct in thinking that the thread on the bolt shouldn't start until it has passed through the bracket?
Correct. I posted about this a while ago, the thread name escapes me, but may be worth a search.
Briefly, you need aircraft industry fasteners, They have a standard length of thread for each diameter of bolt, to accommodate two washers and a
locking nut. The shank lengths are available in 1/8" (American, wouldn't you know!) increments.
With these fasteners, both sides of the suspension brackets are in contact with the correct diameter of bolt shank. Using ordinary engineering
fasteners will result in the thread remaining inside the hole on one side of the bracket, thus putting unequal stress on the bracket.
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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