!!!!WARNING WILL ROBINSON!!!!
I worked on a vehicle where someone dumped some stop leak in the expansion
bottle.
That stop leak was able to close up a 1/2" hole but unfortunately that hole
was the expansion bottle outlet pipe and hose. lol
That vehicle overheated until things were unclogged and the leak elsewhere
was repaired properly. ;-)

It might be best, in your case, to take off the radiator hose and dump that
stuff directly into the radiator!
Of course replacing the radiator is an option too! <g>

JMHO
--
later,
dave AKA vwdoc1
88 XJ 4.0 auto


"Kyonn Gowans" > wrote in message
...
> My '89 Cherokee 6cly has a small crack in the radiator. I bought a bottle
> of heavy duty stop leak but this model doesn't have a radiator cap, can I
> pour it into the coolant bottle? Thanks in advance for any help.
>