Aluminum fin repair

  • Pro_window78
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Aluminum fin repair

08 May 2009 19:20
#289182
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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Re: Aluminum fin repair

08 May 2009 19:46
#289192
depends how bad it is B)
Still recovering,some days are better than others.

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  • Pro_window78
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Re: Aluminum fin repair

08 May 2009 20:19
#289202
just the top three fins, they are broken cleanly.

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  • PLUMMEN
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Re: Aluminum fin repair

08 May 2009 20:20
#289205
how bad,pics?
Still recovering,some days are better than others.

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  • jordan
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Re: Aluminum fin repair

08 May 2009 20:30
#289209
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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Re: Aluminum fin repair

08 May 2009 20:49
#289224
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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Re: Aluminum fin repair

09 May 2009 05:04
#289327
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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Re: Aluminum fin repair

09 May 2009 06:39
#289342
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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Re: Aluminum fin repair

09 May 2009 06:51
#289343
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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Re: Aluminum fin repair

09 May 2009 08:21
#289360
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.
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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  • Pro_window78
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Re: Aluminum fin repair

09 May 2009 08:30
#289363
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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Re: Aluminum fin repair

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