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I may have gone to far-solutions or opinions please?

November 30 2017 at 9:53 AM
Leland  (Login lhstanford)
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I did , what was supposed to be a gasket match clean up on my brother-in-laws 429 CJ marine engine heads. I reached as far as I could into the runners with a carbide tip on my die grinder, then smoothed using a drum roll. I just removed the intake after a very short run time since complete rebuild. I had a couple lifters clattering, suspecting a flat cam. edelbrock cam kit installed on rebuild. I found 3 tiny cracks. Diagonally down the runners. Is there any such thing as a magnaflux system I could use with the heads still bolted down? There's no sign 'yet' of coolant leak, maybe not a crack. Any info shared is appreciated.

 
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Chris McAlpine
(Login chris401)
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Zyglo By Magnaflux

November 30 2017, 12:03 PM 

01-3354-77
01-3187-77
01-5750-77

 
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Travis
(Login country63sedan)
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Two parts spray cans

November 30 2017, 2:12 PM 

We used some stuff at work for checking steer axles for cracks. Cleaned it up good, sprayed it with one can, then sprayed it with the other. A crack would show up if it was there. Can't think of the name on the can though. A google search should yield something. Later, Travis

 
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Phil Brown
(Login LowETCars)
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Crack Check

November 30 2017, 8:55 PM 

Dye penetrant type of product,most welding supply shops should have some type or might try McMaster Carr

 
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Leland
(Login lhstanford)
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thanks for replies

December 1 2017, 6:50 AM 


 
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WerbyFord
(Login werbyford)
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Magnaflux 3wu59-60 2 spray cans

December 1 2017, 11:09 AM 


This stuff maybe?
I have a 3.984 crank that is allegedly cracked, I cant see anything by eye, but even for a low-budget build under 5000rpm I hate to use it before checking myself.

Shows 2 cans, 1 penetrant, 1 developer, then a cleanup spray but maybe lacquer thinner or acetone would work for cleanup?

https://www.grainger.com/product/MAGNAFLUX-Penetrant-3WU62?gclid=Cj0KCQiAmITRBRCSARIsAEOZmr4w6hxI4uksO1HBC1qL2LeImGscQV1hKiqTdO0QRkbK7tQyUKewV94aAurxEALw_wcB&s_kwcid=AL!2966!3!70811101823!b!!g!!&ef_id=WZ282wAAAH8wZyvG:20171201190302:s

 
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Bones
(Login boneyard51)
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Re: I may have gone to far-solutions or opinions please?

December 1 2017, 11:34 AM 

Maybe I’m not understanding the problem here, but with my magnafluxer, I would make sure the valve was closed, tape off other ports, Valley, , maybe stuff tissue paper down around the valve,put my machine on it , check it. Then vacuum it, blow it with compressed air. And call it good. Bones

 
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Bart
(Login RATPOISON511)
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Old Trick

December 2 2017, 12:40 AM 



Old timers used to soak area with gas where the was a crack. Then, they would gently wipe area off with a dry rag, The gas would come out of the crack. LoL Try it, it works. Be careful with the gas.

 
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Leland
(Login lhstanford)
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I'm an old timer. Must have missed that one. Sounds simpleist. Thanks

December 2 2017, 6:46 PM 


 
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