Worn cylinder head threads

[degsey]

anyone any ideas please as my R80 has worn cylinder head threads and I cant get the exhaust rose nut to tighten up

I dont want to strip the heads off

cheers

 

[Kenny]

Looks like you'll have to send them off to Srimminger etc for re-threading...they have to be pretty tight !

 

[Rob Farmer]

I just put the right goo on and nip them up, never had one come loose yet. I don't know why everybody feels they need to swing on them or hammer them to tighten them up.

 

[Rob Farmer]

Don't send them to scriminger send them to Richie Moore. Richie does a much neater job and charges less.

 

[Kenny]

Richie Moore then

But if he can't do them up tightly then they'll need re-threading....he should be selling his Newcastle Ale towels to pay for it !

 

[degsey]

They won't tighten up at all chaps

 

[Rob Farmer]

Oh dear!

Would it be inappropriate to make an offer?


Seriously

Motobins or Motorworks were selling a repair kit a while back

 

[Box’a’bits]

Try this at Motorworks

 

[degsey]

Cheers

 

[degsey]

HAD A LOOK AT THE SITE MOTORWORKS FOR THE REPAIR KIT LOOKS GOOD HOWEVER THEY WANT £18.50 POSTAGE

 

[Garry H]

New Nuts !!

Might be worth trying some new nuts
If they are worn new one might just grip enough

Heres a head i repaired

 

[degsey]

very nice job, no chance with new nuts

 

[Damien]

I had mine done here, great job!

http://blrengineering.co.uk

 

[Kenny]

Feckin' postage is the bane of society at the moment

Incidently, if mileage is over 50,000 may be best to have the exhaust valves replaced at the same time as having the exhaust thread repaired; kill two birds with one stone........obviously depends on budget etc

 

[Padmei]

garry H was that a ready made threaded ring replacement thingy or did you make one up? Looks bloody amazing.
Have you got a pic of the whole setup of your machine- is it a standard lathe?
cheers

 

[Garry H]

It's all home made
The threaded piece is made from brass
This is a pic of the setup

 

[degsey]

great job

 

[Paul Rochdale]

Some years ago I had to drill and chisel off the exhaust nuts on my R100/7. The exhaust stubs were manky but after a good wire brushing I made up a 'tool' by getting a hacksaw blade and grinding a knife edge along the teeth, and then used this to gently file along what remained of the threads. With new nuts and coppergrease, she carried on perfectly well for years.