Exhaust thread reconditioning

[Paradiso]

Hi. Can anyone recommend an engineer to sleeve or weld and recut an airhead exhaust thread? I did a search, but couldn't find any recent names/services. It's an R65LS, 1983. I'm in the North East/Teesside area. Thanks.

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[Deleted account 240831001]

Try Seager Engineering, I had the exhaust threads done on my Commando and they did an excellent job.

http://www.seager-engineering.com/

I don’t know if they do airheads but I’d certainly call them and I’ve no hesitation in recommending them.

 

[barny]

Richie Moore http://www.moorespeed.co.uk/bmw-products

Not cheap but, quality work and a nice bloke with some experience on airheads.

 

[Paradiso]

Thanks. I contacted Scrimminger. They don't do them anymore, and the guy who had been doing them for them recently retired. He did mention the name Roger Burnett in Holmfirth, but I couldn't find anyone online by that name.
I contacted Motorworks and they have someone who does them.

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[cookie]

I bought a second hand head from Motorworks where they had "repaired" the thread. It was an utterly shite job.

 

[bmstan]

Thanks. I contacted Scrimminger. They don't do them anymore, and the guy who had been doing them for them recently retired. He did mention the name Roger Burnett in Holmfirth, but I couldn't find anyone online by that name.
I contacted Motorworks and they have someone who does them.

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It's Roger Bennett!
Roger Bennett Engineering
Unit 7c Riverside Works, Bradley Mills Rd, Huddersfield, HD1 6PQ

Tel
01484 536126

 

[Paradiso]

Thanks. That'll be who he meant. It probably makes sense to get the valves/guides and seats checked over while I'm at it. I filled the exhaust port with fuel and there's a tiny bit of seepage past the valve. And so a quick service and clean up escalates into more work and expense....

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[Garry H]

Here is how i repair mine

https://www.ukgser.com/forums/showthread.php/85047-Exhaust-Thread-Repair

 

[Deleted account 240831001]

Here is how i repair mine

https://www.ukgser.com/forums/showthread.php/85047-Exhaust-Thread-Repair

Either you posted a link to that or someone else did quite a while ago. I was impressed then and I’m still impressed now

I’ve no doubt there are a few companies offering similar repairs some good and some bad. My Norton had a shit repair done on it before I bought the bike so I got Seagers to do it after being told by a friend that they were trustworthy and it was well worth the cost.

 

[Mistacat]

In the past I have machined the old exhaust stub down and threaded aluminium tube so that it is a shrink fit onto the stub then Tig welded the new sleeve to the stub on the inside so that the repair is not visible.
It has been necessary to run a thread chaser down the finished job as it ends up a couple of thou oversize due to the shrink fit.
This is just another way of doing them.

[/IMG]

 

[Steptoe]

BLR Engineering, Wallington south London - they fit a Phosphorous Bronze insert so you’ll never have any problems in the future. They’ve been repairing Bmw exhaust threads for more than 40 years.

 

[dr nosh]

Another vote for Seager Engineering.

Good quality work.

 

[Denis99]

It's Roger Bennett!
Roger Bennett Engineering
Unit 7c Riverside Works, Bradley Mills Rd, Huddersfield, HD1 6PQ

Tel
01484 536126

Hi Roger

I have been recommended to you by John Robinson who sells Airhead BMW in Sunderland

I tried ringing you, but the phone says incorrect number.

Could you give me a ring on 01639 766452 or 07465 425 933

Thanks

 

[Gelandestrasse]

Hi Roger

I have been recommended to you by John Robinson who sells Airhead BMW in Sunderland

I tried ringing you, but the phone says incorrect number.

Could you give me a ring on 01639 766452 or 07465 425 933

Thanks

I believe he has retired. Don't know what happened to his workshop.