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holden05 Offline
#1 Posted : Sunday, 17 April 2022 5:39:43 PM(UTC)
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I have a pinhole in the radiator of my vc commodore
Is this stuff worthwile or a wank?
Just thought it might save time and expense if removing
Smitty2 Offline
#2 Posted : Monday, 18 April 2022 9:00:13 AM(UTC)
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personally...
I would only ever use the stuff if a squillion miles from civilization anywhere
otherwise
give the car to a rad place for the day. They can pressure test the system
(there may be more pinholes) properly clean the cooling system and repair
and test the radiator for leaks after the repai
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Dr Terry Offline
#3 Posted : Monday, 18 April 2022 11:17:56 AM(UTC)
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Ditto ^^^

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HK1837 Offline
#4 Posted : Monday, 18 April 2022 12:00:02 PM(UTC)
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I've used it before when working away commissioning grain silos in west NSW and had a welsh plug start to leak. Lasted long enough for me to finish work (like a month) and get home to pull the SBC engine and replace all welsh plugs. I'd only use it as a last resort, although on a radiator you should be able to put that two part putty on the leak and get you through until you fix the radiator properly. I used it once on a demo derby HG wagon where I welded a HJ radiator support where the back seat used to be and had the radiator there. It got cut with something so I used some radiator putty on it and it lasted two demo derbies that way.
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SRV Offline
#5 Posted : Monday, 18 April 2022 8:38:12 PM(UTC)
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I've used a few different ones in various paddock bombs, in my opinion the types that are a green goo and have no solids are OK in a pinch, they don't clog radiators and can be flushed out later. The types with particles or fibres in them are bad news and will do way more harm than good. I put chemi weld in a car with a blown head gasket that I later stripped for parts, it didn't work, radiator and heater core would of needed rodding out to be used again, coolant passages in the head were packed with the stuff but none of it had stuck where the gasket was leaking.
202tonner Offline
#6 Posted : Friday, 22 April 2022 11:15:04 PM(UTC)
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If the radiator is in good condition and you can get to the pinhole I would recommend putting a drop of superglue over the pinhole. This has lasted for a couple of years on mine so far. Plenty of time to get it fixed properly.
Drain the radiator, wash the area, allow it to dry and dob the superglue on the spot. Let the glue harden and refill the radiator, good to go.

If the radiator is old and on the way out then use the stop leak stuff. It does work but only on small holes. It will last for at least a couple of months.

I use the Rislone brand in the grey plastic bottle. No problems so far in either the old radiator or the new one. I'm out in the country a lot so often carry a bottle with me just in case.
castellan Offline
#7 Posted : Monday, 25 April 2022 3:49:10 PM(UTC)
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Originally Posted by: 202tonner Go to Quoted Post
If the radiator is in good condition and you can get to the pinhole I would recommend putting a drop of superglue over the pinhole. This has lasted for a couple of years on mine so far. Plenty of time to get it fixed properly.
Drain the radiator, wash the area, allow it to dry and dob the superglue on the spot. Let the glue harden and refill the radiator, good to go.

If the radiator is old and on the way out then use the stop leak stuff. It does work but only on small holes. It will last for at least a couple of months.

I use the Rislone brand in the grey plastic bottle. No problems so far in either the old radiator or the new one. I'm out in the country a lot so often carry a bottle with me just in case.


The best thing to use if you have a pin hole in your radiator is to use silicone ! just a jab over the hole and never to leak ever again !
First used such back in the late 70's on old paddock bashers that the fan was driven into the radiator ! patched up plenty, does not matter how badly, the silicone works spot on. There is nothing better !
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