Bad Casting hole in Hemi?

[erickson]

I’ve been trying to find out why my Hemi was leaking oil. After replacing gaskets I noticed a small pin hole in the block. I took a small grinder to clean it up. When I took a air nozzle to it I could feel air in side the block I JB welded it no more leaks. This is a 1965 block Anyone else ever seen this before?

 

[Cranky]

Seen BB heads with VC gasket surfaces so bad that almost nothing would seal them.....

 

[HEMI-ITIS]

JB weld it shut.

 

[Cranky]

JB weld it shut.

He said he did that. Kain't ya red!?

 

[yella71]

Bad mopar casting? never seen that before

 

[HEMI-ITIS]

He said he did that. Kain't ya red!?

On my 1st cup-o-joe.................I gone bak and redded it

 

[Cranky]

On my 1st cup-o-joe.................I gone bak and redded it

Glad I don't have 'that' addiction lol and now it seems that 'cup-o-joe' has a new meaning

 

[super-bee_ski]

On my 1st cup-o-joe.................I gone bak and redded it

 

[Fran Blacker]

What you trying to make Hemitis sick?/

 

[493 Mike]

My spare/backup 440 developed a small crack in the outside water jacket (from COLD weather I believe) so I ground the crack open some and filled her up with JB. That was 15/20 years ago. Still holds water. Ain't epoxy great!
Mike

 

[Curiousyellow71]

A permanent fix would be using this specialty rod and weld it cold. Unhook the battery before you weld. Do what you can to prevent anything from getting in the engine. Welds easy. Need a stig or they likely have tig as well. We've done a fair amount of cast iron welding. This is the best we found. Since your just dealing w porosity and not a crack..shouldn't need much prep. Get it clean and weld, grind and repaint it.
https://www.muggyweld.com/product/77-cast-iron-welding-rod/

 

[HEMI-ITIS]

Crack repairs are best done with stitch welds.

 

[bearman]

View attachment 971643

That's a bad cup I bet it taste like s__ t. Just my opinion

 

[Cranky]

My spare/backup 440 developed a small crack in the outside water jacket (from COLD weather I believe) so I ground the crack open some and filled her up with JB. That was 15/20 years ago. Still holds water. Ain't epoxy great!
Mike
View attachment 971651

A permanent fix would be using this specialty rod and weld it cold. Unhook the battery before you weld. Do what you can to prevent anything from getting in the engine. Welds easy. Need a stig or they likely have tig as well. We've done a fair amount of cast iron welding. This is the best we found. Since your just dealing w porosity and not a crack..shouldn't need much prep. Get it clean and weld, grind and repaint it.
https://www.muggyweld.com/product/77-cast-iron-welding-rod/

Well, Mike above says his has been holding 15/20 years now with the epoxy fix. I can understand where in some areas, epoxy might not work very well but I'm going to try that first. And there are some really good epoxies out there....

That's a bad cup I bet it taste like s__ t. Just my opinion

Was wondering if someone was going to post that lol

 

[Johnpat]

JB weld,no more problem.

 

[Curiousyellow71]

Jb weld works great always helps to have something to bite into. Should work easily if it just has crank case pressure behind it, I would jb weld first, if that doesnt hold...stitch weld.

 

[erickson]

Just took it out for a 50 mile drive and beat on it hard. No oil leaking