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Head Removal - Stuck Sprocket Bolt
Posted: Tue Dec 21, 2004 11:31 am
by julian
Can't get the sprocket bolt undone.
Have spoken to Bailey who recommends a decent 8mm socket and a breaker bar to release the threadlock.
After the previous sheering of the manifld stud I'm very wary of excessive force on what is only a 65Nm bolt. Should I use a heat gun to loosen the Loc-tite? If so which one - are they the same as leccy paint strippers in B&Q or more subtle than that??
Cheers
Julian
off to get a decent 1/4 inch 8mm hex socket.
Re: Head Removal - Stuck Sprocket Bolt
Posted: Tue Dec 21, 2004 12:14 pm
by RiceBurner
julian wrote:Can't get the sprocket bolt undone.
Have spoken to Bailey who recommends a decent 8mm socket and a breaker bar to release the threadlock.
After the previous sheering of the manifld stud I'm very wary of excessive force on what is only a 65Nm bolt. Should I use a heat gun to loosen the Loc-tite? If so which one - are they the same as leccy paint strippers in B&Q or more subtle than that??
Cheers
Julian
off to get a decent 1/4 inch 8mm hex socket.
assuming this is a chain sprocket nut ?
we had this once on a ZX6R - get a mate to stand on the back brake, bike in gear, and use a 6foot length of scaffold pole over the breaker bar - we got the end of the scaffold pole to turn through 90 degrees before the nut loosened off!!!
Posted: Tue Dec 21, 2004 12:29 pm
by julian
That sounds about right.
Posted: Tue Dec 21, 2004 1:23 pm
by Jason M
julian wrote:
That sounds about right.
Ditto that - they're a prize bastard to remove. I've got a length of scaffold pole I use to persuade bolts out too
Think I just used the 20" torque wrench and a bit of heat from a little blow torch. You definately need the good 8mm hex socket though
Jason
Posted: Tue Dec 21, 2004 2:48 pm
by julian
Jason M wrote:julian wrote:
That sounds about right.
Ditto that - they're a prize bastard to remove. I've got a length of scaffold pole I use to persuade bolts out too
Think I just used the 20" torque wrench and a bit of heat from a little blow torch. You definately need the good 8mm hex socket though
Jason
OK just been out and got an 8mm 1/2 inch Tengtools socket for £6 so hopefully it will be a better fit than the Halfords which is a tad sloppy.
One other thought - is it a standard anticlockwise to undo thread?
It's for the RHS i.e. offside pot.
Posted: Wed Dec 22, 2004 8:49 am
by Jason M
Julian - can't be 100% sure TBH, but I'm pretty sure it is. The manual makes no mention of it being a left hand thread or whatever. If you want to wait I can check tonight when I get home. Could make a quick phone call to a dealer I guess
Jason
Posted: Wed Dec 29, 2004 10:34 am
by julian
Impact driver didn't work - too much play in chain.
90 seconds heat with a gas blow torch and it came off with a regular hex without any issues or excessive pressure. Bloody loc-tite!
Posted: Wed Dec 29, 2004 2:52 pm
by Jason M
julian wrote:Impact driver didn't work - too much play in chain.
90 seconds heat with a gas blow torch and it came off with a regular hex without any issues or excessive pressure. Bloody loc-tite!
I didn't think there was any loctite on that bolt
If you need to borrow a little to apply on reassembly I can send you mine - it's f'kin expensive stuff!
Anyway, glad to hear it's out JK. What's the state of the piston etc? Muchus Gungious or not?
Jason
Posted: Wed Dec 29, 2004 7:03 pm
by julian
Jason M wrote:julian wrote: Anyway, glad to hear it's out JK. What's the state of the piston etc? Muchus Gungious or not? Jason
Haven't removed the head yet as I was out today. Will try later in the week. Thanks for the Loc-tite offer, however I have some (green) that I bought off Bob last year.
Still need the seat rubbers though pls, and maybe the rear plastic grab rail that has the BMW logo.