surface crack in water outlet elbow on BN2

[bighealeysource]

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

 

[Patrick67BJ8]

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

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.

 

[Bob_Spidell]

<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.

 

[Keoke]

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

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.

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