antifreeze leak

[Dwashebek]

I have a very slight antifreeze leak in my 1953 SuperH. When I say slight, it?s maybe 2-3 drops in two weeks time. I already checked the hose clamps. Any suggestions for an additive I can pour into the radiator without damaging anything?
 

[rustred]

where is it leaking from? check water pump packing and tighten.
 

[Dwashebek]

I don?t think it?s the water pump but I?ll take a closer look. How would I tighten the packing?

Than you!
 

[rustred]

there is a brass nut with tabs in from on the shaft. there is also a special wrench used for this. most people use a punch and hammer to tighten the nut. has to be pretty snug. plus give it couple shots of grease. if nut is bottomed out the packing needs to be replaced. just went through all this on my w9.
 

[fastfarmall]

There is a product called K seal, it's suppose to be for slow leak's,i used it on my car, it stopped that from going down!!
 

[rustyfarmall]

Silver Seal. 2 cans should be enough. It is a powder. I use it in all my tractors just as a precautionary thing.
 

[Mark Poss]

Course black pepper
 

[Russ from MN]

Silver seal worked for me, and old tube my dad had. I normally use Bar's stop leak.
 

[caterpillar guy]

For a couple drops in a couple of weeks I would not fuss with it.