K-Seal FTW.... lol

[gimebakmybulits]

Since no one wanted to buy my over priced Disco and I have zero time to do the engine swap I decided to dump a bottle of K-Seal into it. A week later it's been running in the 183-186 range just like it was prior to cylinder #6 pressurizing the cooling system. I do suspect that this or something similar had been done previously given how heavy the original radiator was when I replaced it. Looking back I think that the cooling system flush and radiator replacement removed the stuff that may have been plugging the crack/porosity in the block.
At least for today the fairy tale love story continues.....:rofl:

 

[KyleT]

Google heater core replacement because yours is going to need one.

 

[gimebakmybulits]

Google heater core replacement because yours is going to need one.

Already bypassed it while trouble shooting the pressurization issue but like I said, pretty sure that someone else had already done this. In the three years I've driven it and how ever long Matt had been driving it the heater core worked just fine.

 

[squirt]

I think we all know the risks. Sometimes it's not worth the effort on a truck, and leak stop is the last resort before it becomes a parts truck. Take it for what it's worth (internet anecdote), but I've used Bars stop-leak (the $20 variety with the metal flakes) in 2 separate D2's with external head gasket leaks. Both sealed immediately, ran cool, and I logged probably 40k miles between the two before selling. One had a thermostat fail open (no heat) about 2 years later, but I can't even say whether it was related. On a sub-$1k truck, there's not much to lose.

 

[pinkytoe69]

Google heater core replacement because yours is going to need one.

Just from personal experience, I think this potential consequence is overblown.

I forgot to bypass the core when I ran Irontite thru the D2, but still had plenty of heat for 2 years till the head stud popped.

I just did the timing belt on the Xterra this weekend. Looked like the previous owner dumped enough sandy shit in the cooling system to replenish a beach. Had and have plenty of heat coming out of that too.

 

[ME Island]

I used K-Seal on my '80 TR-7 when a water pump failed and it developed a gasket leak at 111,000 miles. It did seem to take care of the gasket leak and it allowed me to get the car home.

As an aside, early TR-7's had chronic overheating problems and actually came with dealer instructions to pour a bottle of Bars Leak when the car was delivered!

Jeff

 

[JackW]

Aston Martin used to pour a bottle of bars leaks into every car coming off the assembly line in the late 1960's according to one of my friends who is an Aston Martin expert.