Hi well to cut a long and annoying story short the imboseal who owned my car previous has rounded the head on the caliper bolt that bolts the caliper to the hub i have managed to get the top bolt out but the bottom is to far gone 17mm just spins and 16 wont go on even with abit of persuasion with the hammer. Does any one have any ideas on how i can get the bolt out i can grind it off as i have a set of 4 pots going on in place of the 2 pots so im not fussed about damaging the caliper just dont want to damage the hub, but does the bolt thread through the hub or is it just the caliper it threads into any help really appreciated and needed thanks.

 

The bolts threaded into the caliper so you should be ok to grind off the bolt head , or you could try some stud extractors on the offending bolt.

 

Grind the head and then use mole grips?

 

ok thanks for the replys, so if i grind the head of the bolt the caliper should just pull away with the disc then does that sound about right. I hope so as it has been a nightmare so far

 

The bolts do screw into the caliper so you would be ok removing the head.Id only do this as a last resort as you don't want to damage the hub.

Try applying some heat with a blow lamp and use some grips to remove the bolt.

 

Yes that was my main worry damaging the hub i think i have a blow touch sosme were i will have a go with that then 1st and get some mole grips on it but it looks pritty seized and the fact the head on the bolt is so fxxcked it would suggest it wont budge easily

 

With any luck the bolt might shear anyway.

 

you could try a set of pipe grips they sell them in most tool surplies ive uesd this type before on ebay Item number: 140528676159 dont know how to copy link up, hope this helps

 

Try AF and Whitworth sockets to see if there is something you can beat on the rounded head.

 

Hi thanks all for the advice I tried heating it that didn't do much so I just cut the head of very carefully with the angle grinder just need to order some new bolts know tho not sure were from

 

Don't know size but these are normal metric HT bolts (8.8 or better) your local garage should be able to oblige if you take an undamaged one with you as a pattern.

 

That's no good, the 4 pots mount differently to the 2 pots.

Arron, give Alyn at AS Performance a ring, tell him what you're doing (4 pot upgrade) and he should have the correct size bolts in stock for a very reasonable price. Does delivery too.

0191 410 3770

 

Hi mate thanks i got hold of Ian and he is sorting me out some bolts. I didnt know the bolts were different i thought they were all the same length etc on classics as the 4 pots seem to line up the same and they are the same thickness were they bolt to the hub