Jump to content

Caliper bolt stripped swivel housing thread?


Disty
 Share

Recommended Posts

I ordered AFU1031 from LR Series, and when I fitted my calipers with it, it stripped the thread of the swivel housing, meaning I now have to buy new swivel housings :'(

Does anybody know why these two parts are different? One has a much tighter thread than the other and is also slightly longer.

Is it a big no-no to retap the thread on the swivel housings? I did all 4, grr!

Correct bolt: http://www.lrseries.com/shop/product/listing/6974/FTC3375-CALIPER-TO-SWIVEL-BOLT.html?search=FTC3375&page=1

Incorrect bolt: http://www.lrseries.com/shop/product/listing/2416/AFU1031-BOLT-CALIPER-TO-SWIVEL-HOUSING.html?search=AFU1031&page=1

Link to comment
Share on other sites

Am I skewered..?

Not in my opinion.

You could helicoil them.

Or, if that's not deemed suitable in this safety crtical area, weld the holes up then re-drill and tap them. Obviously you would have to make sure to re-do them in the correct position, an engineering shop might be best to carry out the work.

I personally don't see why helicoils would not be suitable but I stand to be corrected.

HTH,

Mark.

Link to comment
Share on other sites

I went for the breakers option and got 2 housings from paddocks for £20 a pop.

Now I've gone and sheared the bolt that holds the bottom pin in. The Rave CD says 78NM is required for those bottom pins- seems a heck of a lot, and clearly I sheared my bolt trying to get it up to that. Now I have to go get it drilled out! Annoying!!

Link to comment
Share on other sites

I was going to drill in and use an easy out, but I brought it back with me and will take it to the engineers I think. So annoying!! I can see how the top bolts are 78 as they are m17, but the bottom ones were like m10 on one side and m13 on the other I think.

Link to comment
Share on other sites

M17 doesnt sound right?

if you mean a 17mm head, then its probably an M10 bolt. The M size is the diameter of the threaded section.

The bolts in the bottom of my swivels were M8, which is usually a 13mm head, however mine had unusually small 10mm heads on them for some reason.

Link to comment
Share on other sites

See my link above. 17-25lbft depending on the grade.

I've seen quite a few errors printed in manuals for components around that area.

For example, one of the manuals gives the top bearing preload values as ~4kg for all vehicles, whereas that value only applies to railko bushes. Vehicles with taper bearings at the top should only be done up to ~1.2kg

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

 Share

×
×
  • Create New...

Important Information

We use cookies to ensure you get the best experience. By using our website you agree to our Cookie Policy