This question has been covered before but usually becomes a 'debate'. Can somone who's recently been through a successful SVA tell me what (if anything) they did to lock the caliper mounting bolts. Just the two bolts that hold the caliper to the upright. Ta

SVA man only asked me if I had used threadlock on the bolts. It's all Ford used on the original sierra setup.

I didn't use owt - just the bolts.

If (and when) I do it again, I'll probably use "frilly" washers.

Pat...

You can get the lock tabs for the cortina uprights for both the caliper and disc-hub bolts from your freindly Ford deal. The disc-hub ones are 33p each and the caliper ones are something like 60p. SO they dont exactly break the bank!

David

[Edited on 8/10/05 by flak monkey]

Most production cars only use threadlock....

As steve says above most production cars use threadlock so why not just use that?

found these on ebay ?

http://cgi.ebay.co.uk/Better-than-genuine-FORD-CAPRI-brake-caliper-lock-tabs_W0QQitemZ4580793017QQcategoryZ21654QQrdZ1QQcmdZViewItem

if they look expensive he gives you all the info you need to make your own. Just scale the photo and cut out some 0.7mm steel sheet.

[Edited on 9/10/05 by givemethebighammer]

As the donor vehicle had locking tabs I believe some SVA engineers like to see the locking tabs.

I made some from 1mm m/stl, see 1:1 pdf drawing attached.

I never use locking tabs on my fasteners for the following reason.

Locking tabs are made from soft material so they can bend. Therefore you have soft material under the head of the bolt. This can squeeze out / flow and cause the fastner to loose some of the preload on it.

Also the actual resistance the locking tab adds to "prevent" the bolt coming undone is so small it is next to useless.

A correctly preloaded fastener is the way to do it, but this often difficult to achieve so one of the thread locking compounds is the way to go.

John

PS I do tend to use lock wire but only because it looks pretty!

Thanks John!

I have got quite fed up with hearing about how sva inspectors "like to see locktabs" when they are actually doing no good at all.

I use loctite and correct torque values, never had anything fall off yet!