M12 bolt in M14 hole (B3 strut housing) reducer sleeve?

Volkcar · Jul 21, 2011

I have oversized struts on the front of my coupe with M14 holes in the struts and M12 holes on the hubs

Would a 12mm holed washer thingy that expands slightly to 14mm with a ridge be ok... Is it safe and where could I find one?

(been looking for many hours) brass colored thing

http://sidewinderforge.co.uk/netlibrabi ... rcmod1.JPG

The simple solution would be to weld a nice thick washer on and bolt things up with a carriage bolt... but I am not sure I want to weld on them as I may use M14 hubs at a later date :dur:

Kliminati · Jul 21, 2011

hmm a bit confused here. When you say hub do you mean the bearing housing which the actual hub and bearing fit into? If so then couldnt you get the holes drilled at a machine shop from m12 to m14 and get some new m14 hardware? if im picturing your washer idea correctly i dont think it would be a good idea because you would essentially have an m12 bolt floating in an m14 hole with all the load only on the washers at the end rather than the length of the bolt.

Volkcar said:
I have oversized struts on the front of my coupe with M14 holes in the struts and M12 holes on the hubs

Would a 12mm holed washer thingy that expands slightly to 14mm with a ridge be ok... Is it safe and where could I find one?

(been looking for many hours) brass colored thing

http://sidewinderforge.co.uk/netlibrabi ... rcmod1.JPG

The simple solution would be to weld a nice thick washer on and bolt things up with a carriage bolt... but I am not sure I want to weld on them as I may use M14 hubs at a later date :dur:

Volkcar · Jul 21, 2011

sorry I meant bearing housing

As for a "m12 bolt floating in an m14 hole", well the bearing housing, hub, whatever will still be 12m and just the mounting hole of the strut will be 14mm.

I didn't really want to get the housings drilled but it may come to that

here is a MG thread detailing the same problem

http://www6.motorgeek.com/viewtopic.php ... =14mm+hole

a_CQ · Jul 21, 2011

Don't sweat it. My KWs are M14 and hub carriers M12. It gives you plenty camber adjustment! If those bolts are torqued down properly (a lot) nothing will move. Last time I did mine over a year ago, I marked them, and just checked the other day and everythign is still lined up.

I looked into redrilling first, but there is very little room there.

Kliminati · Jul 21, 2011

oh yea that's true I guess i was picturing the opposite of m12 on strut housing and m14 in bearing housing for the floating. If you get some larger washers and tighten them up good it may just work as is. Not sure though. You could try it for a day or 2 and check it again to see if it moved. I think the worst is you'll see some more camber if it moves. Not like the hole thing will come apart. You should get new hardware though because those are stretch bolts and using old ones is not a good idea.

Volkcar said:
sorry I meant bearing housing

As for a "m12 bolt floating in an m14 hole", well the bearing housing, hub, whatever will still be 12m and just the mounting hole of the strut will be 14mm.

I didn't really want to get the housings drilled but it may come to that

here is a MG thread detailing the same problem

http://www6.motorgeek.com/viewtopic.php ... =14mm+hole

Jretal · Jul 21, 2011

I had my friend's dad make me some of these. Started like so:

Ended like so:

Fit like so:

Only mistake I made was I had him cut them a bit too thick. Think I had him make them 4mm thick, and in reality it should have been more like 2mm. I had to put a grinding wheel to them to thin them up a little bit so the lock nut on the bolt would fully engage.

Otherwise works awesome. I only used them on the bottom, so it allows me to adjust camber with the top holes. I have enough to do the bottoms left over if you're interested in them. Really don't have any use for them since I don't plan on putting them at the top.

Kliminati · Jul 21, 2011

wow nice work. My KWs basically have the same thing. When you order them you have to specify whether you want m12 or m14. I wonder if receiving these washers with them is the only difference. The top hole on the KW is more of an oval though for adjusting camber. Using what you made on the stock strut housing seems like a good way to get a little more camber adjustment.

Volkcar · Jul 21, 2011

Yes Yes.. this made my day. I was totally freaking out about it

M12 bolt in M14 hole (B3 strut housing) reducer sleeve?

Volkcar

Kliminati

Volkcar

a_CQ

Kliminati

Jretal

Kliminati

Volkcar

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