Exhaust Studs & Extractors

[chris1969]

Sorry, this old chestnut again.

Trying to remove the studs on my Fazer 1000. A couple are slightly bent & all are rusty so they have to go, but on the plus side none have snapped....yet.

The first big question is, these studs are meant to be 6mm right? (I would measure them but most of my tools are boxed up as I'm moving house at the end of the week).

Reason for asking is, I borrowed 2 stud extractors today (the socket type), one 6mm & another 8mm. Couldn't get the 6mm on to the bolt at all, the 8mm did grip a bit but the stud didn't budge before the extractor lost grip.

I've tried the 2 nut method. No luck with that so far, but I'm not sure how far I can really push the tightening of the nuts as I don't want to stretch the stud.

I'm thinking of getting one of the collet stud removers from Snap On, granted they aren't cheap, but if they do the job, I really don't care.

ftp://http://buy1.snapon.com/catalog/ite...ir=catalog

Failing that maybe give these Laser Impact stud removers a go.

ftp://http://www.amazon.co.uk/gp/product...00_s00_i00

If all that fails it looks like either going down the mig welding option or cutting them off & drilling them out.....or just buy another cylinder head  :rolleyes

[maxzer1500]

Had this issue a few times. What never fails for me is to use a socket that would be a tight fit on the stud.

[chris1969]

That would probably be the 6mm socket extractor, but as they were lent to me and they were quite expensive I was reluctant to go too mad & whack the thing on with a hammer 

[maxzer1500]

Chris, i don't mean a proper extractor, just a small socket. I have several cheap small ( but long ) socket sets so even if the socket is sacrificed it is ok 

[chris1969]

Ah, got you. I have plenty of socket laying around. I'll give it a go.

[solorider]

The studs are 8mm, I ised a step extractor set from halfords, I did apply heat and I got all mine out without any breaking, I bought my studs from a vauxhall dealer as they were cheaper and virtually the same size in length.