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69SSConv


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Differential Leaking through casting?
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Anyone had this happen?  I just filled the differential on the 80 Camaro, and it is leaking through the casting, just behind the pinion.  I have attached a photo.  Is there something one can do to seal this?

Appreciate any feedback.

 

Loren photo (2).jpg



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Loren B. - Princeton, MN

1969 Chevelle SS Convertible, Bright Torch Red, 396, 200-4R, 12 bolt 3.73 Posi

1969 Chevrolet C20, Orange/White, 350, 4-spd, 4.11

1980 Camaro, RS, Impulse Blue, 350, 200-4R, 3.73 Posi

1967 Chevelle Malibu 2-DR Hardtop.  In process
Tony Hoffer


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porosity or a crack?

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You can sleep in your car, But you cant drive your house
69SSConv


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Seems like a strange pattern on the casting? It does appear to be in the indentation on the casting, could be crack? Car had a V6 so cannot believe it is do to high torque? Seems more likely a casting defect?

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Loren B. - Princeton, MN

1969 Chevelle SS Convertible, Bright Torch Red, 396, 200-4R, 12 bolt 3.73 Posi

1969 Chevrolet C20, Orange/White, 350, 4-spd, 4.11

1980 Camaro, RS, Impulse Blue, 350, 200-4R, 3.73 Posi

1967 Chevelle Malibu 2-DR Hardtop.  In process
Chris R


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First I have ever seen a leak like that in a casting.



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Chris - Ramsey, MN.

Dear Optimist, Pessimist, and Realist.

While you guys were busy arguing about the glass of water. I drank it!

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The opportunist.
Lost in the 60s


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Looks like a casting defect. Drain enough lube to get the leak to stop. Clean multiple times with brake cleaner until there is NO lube residue. I use Black RTV silicone to stop leaks on my Pete with very good success. Work the silicone into the crack as much as possible and let dry for a few days before re-filling. There isn't any pressure there and I believe it will stop the leak.



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Mitch D.   River Falls, WI

Lifetime member of the "Cars apart Club"

1966 Chevelle SS 396 M20

1970 Chevelle SS 396 M20

1967 Camaro SS/RS 350 M20
69SSConv


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I was able to get this leak taken care of. I cleaned up the casting, and applied some JB Weld to seal up the leak. Has not leaked now for about 4 days Thank you all for your suggestions.

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Loren B. - Princeton, MN

1969 Chevelle SS Convertible, Bright Torch Red, 396, 200-4R, 12 bolt 3.73 Posi

1969 Chevrolet C20, Orange/White, 350, 4-spd, 4.11

1980 Camaro, RS, Impulse Blue, 350, 200-4R, 3.73 Posi

1967 Chevelle Malibu 2-DR Hardtop.  In process
Lost in the 60s


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JB is good stuff too, I suggested the silicone as an easier to apply repair. I actually repaired a cracked block in a boat I owned for 17 years with JB and since the coolant has no pressure like a car, it never leaked a drop in all those years...thumbsup



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Mitch D.   River Falls, WI

Lifetime member of the "Cars apart Club"

1966 Chevelle SS 396 M20

1970 Chevelle SS 396 M20

1967 Camaro SS/RS 350 M20
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