block water crack repair..Q

hardtimes

hardtimes

Well-known member
Before I head off to take action, I thought that ask here for some first hand usage accounts.
Situation is that I have small (:rolleyes:) water leak cracks in block water jacket near valves. Yeah, flathead..maybe not same as yours,eh :)
What product have you used to successfully plug small block cracks and how used ?
 
It really depends on the type of crack it is. If it is something that can progress, it needs to be drilled and plugged to stop it from getting worse.
 
It was and is still a old remedy for cracked blocks . Use liquid sodium silicate or called water glass. Just add to the coolant system and drive the car. Have seen it used before and was amazed how well it works. The new GM motor coolant has sodium silicate in it.
Vic
 
All depends on the type of crack(s) and the location(s). A high number of block have cracks and they are of very little concern, but some cracks require repair and some are beyond repair.
 
If the crack is towards the valve seat then it may allow seat to come loose. That type of crack has to be repaired properly.
 
Mike51Merc said:
Yeah, isn't that easier said than done?

Many (not all) cracks can be repaired, good replacement blocks are exceedingly rare.

Liquid repairs may help with small stuff.
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Hey Mike,
I'm praying that you're last sentence is true, in my case :) !
I'm not going to go over the details minutia here about this '32 B banger block. I posted on model a section and discussion was held. See that if interested in detail.
Several knowledgeable buds / builders said that SS (liquid glass) can ruin an engine if it gets where is aint supposed to be. You probably remember some gov brainac program whereby newer veh/engines were destroyed wholesale. Yeah that was via SS(sodium silicate). The cracks were caused by the shop that handled the block. The cracks are in the areas where the large valves/cam draws water (and SS if added) into cylinders...not good, e h. Thanks for all suggestions/help.

Oh, BTW...I CAN use a good crack free B block if you have one. Need one to put an OHV Schofield Head setup on :)
 
hardtimes said:
Hey pete,
Darn well better be good at the sale price for pint can :eek: !
I took your advice and got a can, after a hour in parts store reading every micro written word on every product that they had. Will try it soon as get healthy again. Thanks:).
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Yeah, it's a tad spendy but it's the only product that I have found to work. Get healthy soon and lets us know how it worked for you....
 
the only sure cur is to have it stiched if you can find someone in your area that does that's how I had mine repaired ten years ago and still holds strong
 
petehoovie said:
Yeah, it's a tad spendy but it's the only product that I have found to work. Get healthy soon and lets us know how it worked for you....
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Hey pete,
Awwwwh, life is good, eh :cool: !!
Sunny SoCal dry heat, cool breeze, cool buddies (thanks ZZ) and SEALED CRACKS :D

You were right pete, spendy but works !!
That sucker sounded like a caged lion for 1/2 hour and was like Mozart to the hard of hearing !! Wish I knew how to post video/sound, so that I could share something good :)
Also, thanks to another Barnbuddy, Pete, as your cam sounded awesome !
 
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"You were right pete, spendy but works !!"

Well, you made my day....I'm happy it worked out for you....

I like that the K-Seal is simple to use. You just Shake, Pour & Go. No need to drain or flush the system. No need to worry about what type of antifreeze or coolant is in the cooling system. It couldn’t be easier!
 
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