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surface crack in water outlet elbow on BN2

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bighealeysource

bighealeysource

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Noticed a small surface hairline crack on the water outlet elbow on my 100M/BN2. It is on the flat edge towards the carb side of the engine. Does not appear to go all the way through. No telling how long it has been there, could be years. I can of course take it off to inspect further but think just watching is sufficient ? Hate to dump all the antifreeze,etc but then again, do not want it to suddenly crack all the way either as I'm going down the road !
Thanks,
Mike
 
bighealeysource said:
Noticed a small surface hairline crack on the water outlet elbow on my 100M/BN2. It is on the flat edge towards the carb side of the engine. Does not appear to go all the way through. No telling how long it has been there, could be years. I can of course take it off to inspect further but think just watching is sufficient ? Hate to dump all the antifreeze,etc but then again, do not want it to suddenly crack all the way either as I'm going down the road !
Thanks,
Mike
Click to expand...
Best way to stop more additional cracking is to drill a small hole at the end of the crack. I don't know the theory to the small hole, but it does work.
 
<div class="ubbcode-block"><div class="ubbcode-header">Quote:]Best way to stop more additional cracking is to drill a small hole at the end of the crack. I don't know the theory to the small hole, but it does work.
[/QUOTE]

AKA 'stop drilling.' The theory is to relieve the stress at the point the crack is moving; sort of like plowing a fire break.
 
Patrick67BJ8 said:
bighealeysource said:
Noticed a small surface hairline crack on the water outlet elbow on my 100M/BN2. It is on the flat edge towards the carb side of the engine. Does not appear to go all the way through. No telling how long it has been there, could be years. I can of course take it off to inspect further but think just watching is sufficient ? Hate to dump all the antifreeze,etc but then again, do not want it to suddenly crack all the way either as I'm going down the road !
Thanks,
Mike
Click to expand...




Best way to stop more additional cracking is to drill a small hole at the end of the crack. I don't know the theory to the small hole, but it does work.
Click to expand...

:iagree:
Now mix up JB weld and fill the interior wih a smothe coatng and alsso close the hole--Keoke
 
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