Broken Cylinder Fins.

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Rod
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Broken Cylinder Fins.

Postby Rod » Mon Mar 13, 2017 6:49 pm

As above, Montesa Cota barrel received some damage in transit, can this sort of damage be repaired/welded ?
Would be a tough job if it can be welded due to cooling fins only about 10mm apart, advice appreciated. I'd buy another if I could find one for a 349/4 at a reasonable price. Pic attached.

IMG_20170302_193708.jpg
IMG_20170302_193708.jpg (1.87 MiB) Viewed 21739 times



David Lahey
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Re: Broken Cylinder Fins.

Postby David Lahey » Mon Mar 13, 2017 7:26 pm

Yes Rod. Fins, even crinkly Montesa fins can be repaired.


relax, nothing is under control

Rod
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Re: Broken Cylinder Fins.

Postby Rod » Mon Mar 13, 2017 8:51 pm

Thanks David, but please tell me more ? Devcon, welding ?



David Lahey
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Re: Broken Cylinder Fins.

Postby David Lahey » Mon Mar 13, 2017 9:15 pm

TIG welding is the go. It helps that you still have the pieces. I can recommend George McKenzie ph 32064230


relax, nothing is under control

Rod
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Re: Broken Cylinder Fins.

Postby Rod » Mon Mar 13, 2017 10:00 pm

Cheers, I've heard that name mentioned somewhere before, he is possibly the man to take on the jobs that are too hard for others. I'll find out soon. Thanks again.



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Re: Broken Cylinder Fins.

Postby RTR » Sat Feb 08, 2020 11:18 am

Make sure you get someone good like an aircraft welder.
Last time I got a head fin welded the bore was distorted when it came back.



imsabbirkabir
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Re: Broken Cylinder Fins.

Postby imsabbirkabir » Sat Feb 15, 2020 4:25 am

Thank you David. I needed this info



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Re: Broken Cylinder Fins.

Postby RTR » Sat May 16, 2020 12:53 pm

I just saw a motor with a couple of big cooling fins broken off and lost. The owner cut some 3mm aluminium sheet and bolted it onto what was left of the fins with heatsink silicone grease. He reckoned it worked.



Rod
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Re: Broken Cylinder Fins.

Postby Rod » Sat May 16, 2020 3:27 pm

George built them back up for me with the TIG welder, he did a great job.




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