77 mercruiser 3.0 engine cracked water mainifold

[phil rogers]

I have an old mercruiser and I want some kind of sealer to seal bottom of manifold.Give me some ideas,It has leaked for a long time and I want to seal it better with some kind of sealer. Thanks phil

 

[alldodge]

I have an old mercruiser and I want some kind of sealer to seal bottom of manifold.Give me some ideas,It has leaked for a long time and I want to seal it better with some kind of sealer. Thanks phil

What water manifold? If your talking the exhaust, that's not going to work

 

[Bt Doctur]

I`m still working on the liquid cast iron but it dosent look promising for cracks

 

[HT32BSX115]

I have an old mercruiser and I want some kind of sealer to seal bottom of manifold.Give me some ideas,It has leaked for a long time and I want to seal it better with some kind of sealer. Thanks phil

The best manifold "sealer" is replacement.

 

[mkfs9]

Not worth trying to fix it up. Replace is the answer of you could get water into a cylinder if its gone bad inside.

 

[Bondo]

I have an old mercruiser and I want some kind of sealer to seal bottom of manifold.Give me some ideas,It has leaked for a long time and I want to seal it better with some kind of sealer. Thanks phil

Ayuh,..... Sounds like a freeze survivor I guess,...

Yer choice of epoxy with seal it up as well as anything out there,....
JB Weld comes to mind,....