Aluminum fin repair

Pro_window78
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08 May 2009 19:20 #289182 by Pro_window78

Aluminum fin repair was created by Pro_window78

Has any one ever successfully repaired broken off cooling fins on a head? I don't have the broken off fins, the bike was that way when I bought it. Any Ideas?

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PLUMMEN
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08 May 2009 19:46 #289192 by PLUMMEN

Replied by PLUMMEN on topic Aluminum fin repair

depends how bad it is

Still recovering,some days are better than others.

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Pro_window78
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08 May 2009 20:19 #289202 by Pro_window78

Replied by Pro_window78 on topic Aluminum fin repair

just the top three fins, they are broken cleanly.

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PLUMMEN
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08 May 2009 20:20 #289205 by PLUMMEN

Replied by PLUMMEN on topic Aluminum fin repair

how bad,pics?

Still recovering,some days are better than others.

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jordan
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08 May 2009 20:30 #289209 by jordan

Replied by jordan on topic Aluminum fin repair

i just acquired a head with a couple broken fins. Not too bad though. I was told and have seen a few successful jobs where people bought aluminum stock and JB welded a new fin piece into place. They can also be welded in by a good aluminum welder.

KZ810 streetfighter kz/gpz/gsxr
1983 gs1100e
1979 KZ 1000 1428 dragbike project
1974 kawasaki H1 500 sold

1972 Kawasaki s2 350-parted on ebay

1973 Kawasaki s2 350-parted on ebay

1982 kz750(sold)
1978 kz650 hardtail(sold)
1975 honda xl250-sold
1971 yamaha R5-sold
1982 yamaha xs400

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Pro_window78
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08 May 2009 20:49 #289224 by Pro_window78

Replied by Pro_window78 on topic Aluminum fin repair

I guess if I jb weld some on there and they fall off then I didn't lose much, alum. stock is cheap. I'll see if I can get some pics on here tommorow. Thanks

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franknsr
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09 May 2009 05:04 #289327 by franknsr

Replied by franknsr on topic Aluminum fin repair

Had a friend *helping* me and knocked three fins clean off. Took it to a local welder who did a fantastic job, looked beautiful. Then he handed me the three pieces. I guess a good aluminum welder can stack beads to recreate the fin then grind them smooth.

If your in the Chicago area see Lion welding in Addison Il.

Formerly CSRchopper
1991 KZ1000P
Gone but not forgotten
1986 ZG1000
1982 650 CSR -shoulda kept this one-
Lisle Illinois, USA

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otakar
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09 May 2009 06:39 #289342 by otakar

Replied by otakar on topic Aluminum fin repair

How much die he charge you???

74 Z1-A stock
76 KZ-900 Totaly stock vice MAC pipe
77 KZ-1000A stock
78 Z1-R 100%MINT 500 original Mi.
78 Z1-R Yoshi 1103 kit stage 1 cams Yoshi pipe. Etc
79 KZ-1300 (1400)
80 KZ-1300
81 Scratch built GPz1150R
82 KZ1000

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Locozuna
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09 May 2009 06:51 #289343 by Locozuna

Replied by Locozuna on topic Aluminum fin repair

This stuff is very good
www.aluminumrepair.com/?src=google&gclid...evr5oCFQKaFQodq0PtbQ

KZ900LTD, KZ750LTD, KZ650, 72'Triumph Trident
"Over the Mountains
Of the Moon,
Down the Valley of the Shadow,
Ride, boldly ride,"
The shade replied
"If you seek for Eldorado!"

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otakar
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09 May 2009 08:21 #289360 by otakar

Replied by otakar on topic Aluminum fin repair

I have attempted to use this stuff on heads. The biggest problem is, getting the area hot enough to use it. Which I could never manage to do. I have tons of this stuff which I have used in the AC and refrigeration business.

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Pro_window78
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09 May 2009 08:30 #289363 by Pro_window78

Replied by Pro_window78 on topic Aluminum fin repair

Yeah, I would be scared to start torchin on it, I'd like to fix it on the bike, so cold methods are probably my only option, If I have to pull the head I'll just find a new one. thanks

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franknsr
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09 May 2009 17:45 - 09 May 2009 17:45 #289503 by franknsr

Replied by franknsr on topic Aluminum fin repair

otakar wrote:

How much die he charge you???

$25! I gave him $30.

Formerly CSRchopper
1991 KZ1000P
Gone but not forgotten
1986 ZG1000
1982 650 CSR -shoulda kept this one-
Lisle Illinois, USA

Last edit: 09 May 2009 17:45 by franknsr.

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Aluminum fin repair

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