Hey all,
I've got a 1994 4runner. I had a coolant leak that looked like it was the water pump and since the timing belt/pulleys were quite old I recently replaced the timing belt, water pump, pulleys etc and took some pics.
The leak stopped for a bit but came back in a few days time. These are pics from when I took the timing belt off but here is where I am now seeing a leak from. Is this a dreaded head gasket leak?

Also - how bad is it to use a head gasket sealer? I won't have time/capabilities to replace a head gasket for at least 2 more months of daily driving. Can a head gasket sealer tide me over for 2 months without major long term damage?

 

Typically when the HG goes on these trucks, the oil/coolant mix internally. It's not unlikely that it could seep through the head/block seam but that just looks like dirt on the block/head.

 

HG sealers produce gum and are more likely to stick your thermostat, sensors and coolant passages even if they provide a temp fix. I wouldnt use that stuff in my cars but there are ways to do it while reducing the problems they create.
does your motor heat up while driving? Over the half mark on the dash gauge?
as the previous poster said, usually leaks are internal. Youre right to be wary but theres tests you can do to figure it out