My BMW radiator has shit the bed. Got a hole somewhere. As the bike is an orphan and I cant just buy another, anybody recommend a place that may be able to fix it?
Tiz alloy core with plastic tanks.
Radiator shops use araldyte on those kind of radiators, otherwise they are throw away.
To thin to tig weld.
JB Weld. That shit is amazing
Almost four years ago I came home to find a pool of coolant sitting under my Honda NTV650. Investigation showed three closely grouped absolutely tiny holes in the radiator finning but no sign of any impact damage at all. My mechanical workshop owning brother in law suggested that the holes were probably caused by electrolysis. So I made up a couple of extra earth straps that went from the radiator fan mounts on the radiator to the frame thus bypassing the rubber mounts on the radiator. And I added half a can of a product called K-Seal that I purchased from Repco for not very much money to the new coolant. Now almost four years later the system is still completely water tight and I’ve had no problems at all. If your problem is similar you may not need a trip to the repairers.
Several members rubbished me originally for this now updated post which asked a similar question to that asked here - but with the problem bike in Christchurch.
My bike is an orphan as well, so a replacement radiator was absolute moonbeams price wise. This solution has been completely trouble free and cost less than $20.
Hi, I can further recommend jb weld, I've glued up leaking radiators with it on several bikes, I carefully scrape around the hole, even make the hole bigger to allow it to fill inside the hole, and overlay it surrounding said hole.
I have also cut out the complete tube that is peirced and glued the tank ends with Jb Weld. it works
Whenever the radiator shop did a alloy radiator repair for me when I owned the garage, they would always include one of these to be added to the coolant upon re assembly.
They work extremely well, even without repairing the radiator first.
https://gngtraders.co.nz/products/se...nd-conditioner
They can be purchased from most auto parts stores.
You grate or chop the block into tiny particles & put it in a tin of boiled water & stir with a ring spanner until dissolved & pour in to the radiator.
We hardly did a repair for the last few years tho.
Radiators got so cheap that it was new radiator every time.
Take it out, go and see trevor french radiators in Huia road Otahuhu,ask for Allan (the owner), explain what you need. If he cant do it I'll eat my hat.
Every day above ground is a good day!:
Well now im confussled.
Today I ran it for 20 mins with all the crap off so I could see where its leaking. I couldnt see any leaks at all. Fan ran 3 times.
Only thing I noted was the cap to the overflow bottle wasnt on properly and it leaked as it was hanging. And the overflow hose from the overflow bottle leaked at the top. Could this be the fault?
Check the rubber seals in the radiator cap. Any signs of damage, replace it.
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