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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!

Sincerly,

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"

Some Assembly Required

1966 Chevelle SS 396 M20

1970 Chevelle SS 396 M20

1967 Camaro SS 350 rs
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"

Some Assembly Required

1966 Chevelle SS 396 M20

1970 Chevelle SS 396 M20

1967 Camaro SS 350 rs
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