Head Removal - Stuck Sprocket Bolt

[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.

[RiceBurner]

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!!!

[julian]

That sounds about right.

[Jason M]

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

[julian]

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.

[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

[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!

[Jason M]

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

[julian]

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.