Cylinder head exhaust threads

[Parky]

Hello everyone. I’m a new member from the NE of England and have just bought my first Morini 3 1/2
It’s an amazing bike and I love it. So light and handles like a dream. My initial problem is that the exhaust threads on the front head have been butchered. Is there anyone who can repair them? Can they be helicoiled?
Any advice greatly appreciated.
John

[buzby]

I had a repair done at http://www.lussoveloce.com/, the former North Leicester Motorcycles and it wasn't cheap and it took a long time but it cured my problem.

[EVguru]

I've been known to take on the task.

https://youtu.be/ZfFbA9Y3jHw

[Parky]

When you say not cheap, how not cheap was it?

[davel182]

The last time I had an exhaust thread repaired at NLM it was ~150 pounds and they pretty much insisted I bought one of their stainless nuts to ensure fit - another 40 (which turned out to be true as the original bronze nut did not thread nicely into the new port).

You might want to check out the work of Gini Mauro http://www.morinispecial.it/joomla/inde ... cle&id=177 despite the problem/cost of posting to Italy?

[acemorini]

Hello Party,
Paul Compton recently repair a exhaust thread for me, very good service and quick and very reasonable, highly recommended.
Regards Pete.

[Parky]

Many thanks for your responses. The possible cost has made me try harder to sort out the crossed threads and with the help of a pal I have managed to get the nut fully home.

Not sure if it will work again but for now the problem is resolved
Thanks again

[3potjohn]

I made good and sure that my threads were cleaned of any carbon or other residue and then used the same grease I use on my beemers.So far so good....
John

[julianharty]

John, which grease do you use for your exhaust threads please?

[Ming]

I use Molykote 1000, or failing that, Copaslip.

[3potjohn]

I am sure any moly grease will do, the stuff I have is Optimol TA, I have had it for years. John

[Sprog]

I've been known to take on the task.

https://youtu.be/ZfFbA9Y3jHw

Hi Paul, are you still able to do exhaust threads for a 500 as one of mine has given up at trac mon this week