Re: RADIATOR STOP LEAK

Posted by RAB on February 06, 2005 at 13:38:59 from (195.93.21.100):

In Reply to: RADIATOR STOP LEAK posted by Tom Zenk on February 06, 2005 at 09:15:41:

Depends a lot on what it is exactly.
I"ve used Bars Leak lots of times with success, but I am particular in what circumstance.
A rad with a separate core - dismantle and seal the offending tube(s)?
Non pressurised system - no problem as most stoppers will work.
Pressurised systems are more liable to give a bigger problem if sealant fails when pressurised, esp. if the failure is due to lengthening area of failure.
If it is out of sight or not important if seen, I have used body filler to effect a permanent? repair as long as damaged area is not too large a percentage of total cooling (once on my brother"s Into 454, after the fan gouged almost a complete circle in the rad!).
Best repair advice is to change it, if it is a modern flimsy arrangement or if any cost saving now is likely to be exceeded by any possible failure later.
Even uncovered diesel injectors can easily be fried at the nozzle.
The aggravation of a blown head gasket can be more than enough of a problem and a cracked head is a disaster, compared with a proper rad repair. Remember some engines and most modern ones are very unforgiving if allowed to go low on coolant.
Your choice in the end though, but don"t blame us......
Regards, RAB

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