cadebytiger
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| posted on 10/4/07 at 11:52 AM |
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Found a water leak
seem to have a water leak somewhere near the bottom of the radiator but cannot find the bu*Łer.
Can just see puffs of steam coming either from the radiator itself or one of the two bottom pipes.
What is best to do? Can radweld fix small leaky pipes too?
The system is such a apin to bleed i don't want to take the pipes off
any ideas?? 
Thanks
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Mr Whippy
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| posted on 10/4/07 at 12:11 PM |
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Try radweld first, it does work and I have it in my cars anyway as a preventive measure.
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NS Dev
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| posted on 10/4/07 at 12:21 PM |
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yep, radweld first and take it from there
Retro RWD is the way forward...........automotive fabrication, car restoration, sheetmetal work, engine conversion
retro car restoration and tuning
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RoadkillUK
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| posted on 10/4/07 at 02:09 PM |
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For what it's worth, I've used radweld on my Tintop and it stopped the leak.
Roadkill - Lee
www.bradford7.co.uk
Latest Picture (14 Sept 2014)
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speedyxjs
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| posted on 10/4/07 at 02:37 PM |
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A cheaper option, for those who watch top gear, use an egg.
How long can i resist the temptation to drop a V8 in?
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zzr1100rick2
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| posted on 10/4/07 at 03:36 PM |
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Dont use radweld do the job properly rad weld works by blocking holes any hole that it finds and there are lots of holes in a radiator cylinder
block etc
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britishtrident
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| posted on 10/4/07 at 03:54 PM |
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Radweld will stop the leak but it b*****s thermostats makes them stick open.
Barrs leaks will also stop leaks very effectively but isn't suitable for modern engines with very small water passages such as the K series.
Do a radiator pressure test with system stone cold and the exact points where the leaks are occurring will show up.
You can make a suitable pressure tester up from a pump up garden sprayer and just tee it into one of the small bore connections.
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zetec7
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| posted on 10/4/07 at 06:21 PM |
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Another testing device that works (I made one myself when I couldn't afford a cooling system pressure tester) requires an old inner tube and an
old radiator cap. I cut the valve-stem area out of the inner tube, leaving a circle of ruibber around it roughly the same diameter as the inside of
the radiator cap. I drilled a hole in the rad cap big enough for the valve stem to stick through, and voila! A pressure tester. Screw the cap on to
the radiator, use a bicycle pump to bring up a little pressure, and look for the pinhole leak. Now THAT's Locost!!
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cadebytiger
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| posted on 10/4/07 at 06:28 PM |
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had thought about this very thing! Used to make water rockets with robinsons water bottles in the very same way!
Might give that a go
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RichardK
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| posted on 10/4/07 at 07:34 PM |
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I used an old bike innner tube valve and a big cork as sold in beer making shops, if you use a small foot pump then you can see what pressure you have
in the rad as well.
May help, just a thought.
Rich
[Edited on 10/4/07 by RichardK]
Gallery updated 11/01/2011
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