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Sealing pinhole in aluminum heads #1208309
04/02/12 03:32 PM
04/02/12 03:32 PM
Joined: May 2003
Posts: 854
Bloomingdale , OH
super451b Offline OP
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super451b  Offline OP
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Bloomingdale , OH
Hi guys, I've got a pinhole in the intake port on one of my EZ heads, that's leaking water. Is there a good sealer that will fix this ? Or will it have to be welded?
Thanks, Wade

Re: Sealing pinhole in aluminum heads [Re: super451b] #1208310
04/02/12 03:40 PM
04/02/12 03:40 PM
Joined: Jun 2003
Posts: 52,972
Romeo MI
MR_P_BODY Offline
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There is a ceramic block sealer thats real good...
and lasts... you can get it at the auto parts store

Re: Sealing pinhole in aluminum heads [Re: MR_P_BODY] #1208311
04/02/12 03:54 PM
04/02/12 03:54 PM
Joined: May 2003
Posts: 854
Bloomingdale , OH
super451b Offline OP
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Is that the kind that you pour in the radiator? I have the heads off right now.

Re: Sealing pinhole in aluminum heads [Re: super451b] #1208312
04/02/12 04:43 PM
04/02/12 04:43 PM
Joined: May 2007
Posts: 1,443
Maryland
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Dads426 Offline
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Quote:

Is that the kind that you pour in the radiator? I have the heads off right now.




Yes, you pour it in the radiator and there are specific instructions for getting heat in the motor for making it work. Off the car I think welding or metal stitching are your only options for an area under pressure.



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Re: Sealing pinhole in aluminum heads [Re: super451b] #1208313
04/02/12 06:53 PM
04/02/12 06:53 PM
Joined: Mar 2006
Posts: 9,910
Eighty Four, PA
B G Racing Offline
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If it's just one pinhole,rub some LabMetal or similar in it and lightly peen it over.Then when engine is run(heat cycled) pour some Dyke Sealer or similar in the cooling system.Use as instructed.

Re: Sealing pinhole in aluminum heads [Re: B G Racing] #1208314
04/02/12 07:14 PM
04/02/12 07:14 PM
Joined: May 2003
Posts: 854
Bloomingdale , OH
super451b Offline OP
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Thanks guys, while I was looking around on the web , I found this : http://www.angelfire.com/biz/sealall/
Has anyone here ever tried it ?

Re: Sealing pinhole in aluminum heads [Re: Dads426] #1208315
04/02/12 07:15 PM
04/02/12 07:15 PM
Joined: Oct 2010
Posts: 2,407
Ambridge, Pa.
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rickraw Offline
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Ambridge, Pa.
head is off. repair it right. get it welded.

Re: Sealing pinhole in aluminum heads [Re: rickraw] #1208316
04/02/12 08:10 PM
04/02/12 08:10 PM
Joined: Oct 2004
Posts: 5,618
long island NY
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Ari440 Offline
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long island NY
Quote:

head is off. repair it right. get it welded.












the last thing you want to do is pull the head off if it leaks again


1.39 9.85 - 137 mph
Re: Sealing pinhole in aluminum heads [Re: super451b] #1208317
04/02/12 08:21 PM
04/02/12 08:21 PM
Joined: Nov 2004
Posts: 3,544
Syracuse,NY
CompWedgeEngines Offline
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Seal All is an excellent product if used right.Its not cheap, but it will work perfectly. Many shops that do extensive porting use it on everything they touch. NASCAR used it as well.


RIP Monte Smith

Your work is a reflection of yourself, autograph it with quality.

WD for Diamond Pistons,Sidewinder cylinder heads, Wiseco, K1 rods and cranks,BAM lifters, Morel lifters, Molnar Technologies, Harland Sharp, Pro Gear, Cometic, King Engine Bearings and many others.
Re: Sealing pinhole in aluminum heads [Re: CompWedgeEngines] #1208318
04/03/12 12:53 AM
04/03/12 12:53 AM
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Sterling Heights, MI
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MCHBOB Offline
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If you go with a sealer and it doesnt work.Your gonna give the guy that will try welding it up a nightmare Hence why i said TRY.Hes gonna fight welding it up with that crap contaminating the weld.It'll go something like weld grind weld grind weld grind pressure test weld grind pressure test weld grind.Add a sealer you can turn a 5 min weld repair into a whole days job

If the head is off why would you not weld it????

Re: Sealing pinhole in aluminum heads [Re: MCHBOB] #1208319
04/03/12 01:20 AM
04/03/12 01:20 AM
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Delray beach, Florida
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Performance Only Offline
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i was thinking the same thing. i wouldn't put it back together just to put a sealer in it. weld it now and forget about it.


machine shop owner and engine builder
Re: Sealing pinhole in aluminum heads [Re: Performance Only] #1208320
04/03/12 02:36 AM
04/03/12 02:36 AM
Joined: Jan 2003
Posts: 27,421
Balt. Md
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383man Offline
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Balt. Md
By all means if you have it apart I would just weld it now. Ron

Re: Sealing pinhole in aluminum heads [Re: super451b] #1208321
04/03/12 10:20 AM
04/03/12 10:20 AM
Joined: Jun 2003
Posts: 52,972
Romeo MI
MR_P_BODY Offline
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Quote:

Is that the kind that you pour in the radiator? I have the heads off right now.




Since you said the head is off.... have it welded

Re: Sealing pinhole in aluminum heads [Re: super451b] #1208322
04/03/12 12:30 PM
04/03/12 12:30 PM
Joined: Oct 2005
Posts: 164
Savannah, GA
mopar400 Offline
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1965 Fury II 1970 Challenger 440, 509 cam, 11:1 w/ 452 iron heads, 6.99 1/8, 11.29@ 120mph 1/4 (1999 Magnolia Drag strip track champion) 1992 Jeep XJ Crawler
Re: Sealing pinhole in aluminum heads [Re: super451b] #1208323
04/03/12 12:50 PM
04/03/12 12:50 PM
Joined: Nov 2004
Posts: 3,544
Syracuse,NY
CompWedgeEngines Offline
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It seems that a couple of people are confused with the Seal All process. Its not something you pour into a engine that is already together. This is a sealer thats done with the head already off.Two totally different process'.Most often used to protect proting jobs and so forth, and it DOES work, IF done right.This isnt a can in the radiator fix.

I would tend to agree, if its off already, then weld it.

I answered the question that was asked. I was assuming there may be a reason the OP didnt want to, or possibly couldnt weld it. Dont know for sure.


RIP Monte Smith

Your work is a reflection of yourself, autograph it with quality.

WD for Diamond Pistons,Sidewinder cylinder heads, Wiseco, K1 rods and cranks,BAM lifters, Morel lifters, Molnar Technologies, Harland Sharp, Pro Gear, Cometic, King Engine Bearings and many others.
Re: Sealing pinhole in aluminum heads [Re: CompWedgeEngines] #1208324
04/03/12 01:14 PM
04/03/12 01:14 PM
Joined: Jan 2003
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St. Charles, MO.
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Slingshot383 Offline
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Devcon or Hysol EA934, both 2 part epoxies with aluminum powder in the base. Both high-temp, aviation grade products. Once cured, they are harder than the aluminum.


1994 Undercover Chassis 125" altered stack injected big block, soon blown and injected Member of The Torque and Recoil Club
Re: Sealing pinhole in aluminum heads [Re: Slingshot383] #1208325
04/03/12 01:25 PM
04/03/12 01:25 PM
Joined: Mar 2006
Posts: 9,910
Eighty Four, PA
B G Racing Offline
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If it has already been run and sealer and other contaminates are present then you maybe in for a PIA weld job.If it's a thin area you may create a bigger project.

Re: Sealing pinhole in aluminum heads [Re: B G Racing] #1208326
04/03/12 02:47 PM
04/03/12 02:47 PM
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Posts: 20,174
PA.
pittsburghracer Offline
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I saved this post from speed talk after reading it just in case I had one that I couldn't weld up. http://speedtalk.com/forum/viewtopic.php?f=15&t=26040


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Livin and lovin life one day at a time




Re: Sealing pinhole in aluminum heads [Re: pittsburghracer] #1208327
04/03/12 07:25 PM
04/03/12 07:25 PM
Joined: May 2003
Posts: 854
Bloomingdale , OH
super451b Offline OP
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Bloomingdale , OH
Quote:

I saved this post from speed talk after reading it just in case I had one that I couldn't weld up. http://speedtalk.com/forum/viewtopic.php?f=15&t=26040




Thats why I asked about alternatives to welding. The hole is in a very tough spot to get to , at least with the equipment that I have. It's right where the port floor starts to transition into the short side radius. I have everything here, that I would need , to try the seal-all.
Cost is also a factor. The plant that I worked at closed last fall and I havent been able to find anything that comes close to what I was making before, so my race car budget is substantially less than it used to be.

Re: Sealing pinhole in aluminum heads [Re: super451b] #1208328
04/03/12 08:48 PM
04/03/12 08:48 PM
Joined: Mar 2006
Posts: 9,910
Eighty Four, PA
B G Racing Offline
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Quote:

Quote:

I saved this post from speed talk after reading it just in case I had one that I couldn't weld up. http://speedtalk.com/forum/viewtopic.php?f=15&t=26040




Thats why I asked about alternatives to welding. The hole is in a very tough spot to get to , at least with the equipment that I have. It's right where the port floor starts to transition into the short side radius. I have everything here, that I would need , to try the seal-all.
Cost is also a factor. The plant that I worked at closed last fall and I havent been able to find anything that comes close to what I was making before, so my race car budget is substantially less than it used to be.




Wade,bring it buy the shop and we will take a look at it and try to fix it for you,no charge

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