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Broken Cylinder Fins.
Posted: Mon Mar 13, 2017 6:49 pm
by Rod
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 (1.87 MiB) Viewed 37498 times
Re: Broken Cylinder Fins.
Posted: Mon Mar 13, 2017 7:26 pm
by David Lahey
Yes Rod. Fins, even crinkly Montesa fins can be repaired.
Re: Broken Cylinder Fins.
Posted: Mon Mar 13, 2017 8:51 pm
by Rod
Thanks David, but please tell me more ? Devcon, welding ?
Re: Broken Cylinder Fins.
Posted: Mon Mar 13, 2017 9:15 pm
by David Lahey
TIG welding is the go. It helps that you still have the pieces. I can recommend George McKenzie ph 32064230
Re: Broken Cylinder Fins.
Posted: Mon Mar 13, 2017 10:00 pm
by Rod
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.
Re: Broken Cylinder Fins.
Posted: Sat Feb 08, 2020 11:18 am
by RTR
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.
Re: Broken Cylinder Fins.
Posted: Sat Feb 15, 2020 4:25 am
by imsabbirkabir
Thank you David. I needed this info
Re: Broken Cylinder Fins.
Posted: Sat May 16, 2020 12:53 pm
by RTR
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.
Re: Broken Cylinder Fins.
Posted: Sat May 16, 2020 3:27 pm
by Rod
George built them back up for me with the TIG welder, he did a great job.