LS V8 swap into a Boxster S

[outsidetheboxster]

Originally Posted by Racer Boy

Jack the front of the car up, and the coolant should run out of the lines that are under the car. You can take the hoses off the radiators, to make sure everything drains out.

I went so far as to use a shop vac to get the bulk of the liquid sludge out. I'm more concerned with the oil residue still likely coating the surfaces inside of the radiators and heater core. I want to get all that out before installing a new engine and such. I can remove all the parts of course, but not looking forward to pulling the heater core just to clean it. Lazy streak I guess. Lol.

[piper6909]

Originally Posted by outsidetheboxster

I went so far as to use a shop vac to get the bulk of the liquid sludge out. I'm more concerned with the oil residue still likely coating the surfaces inside of the radiators and heater core. I want to get all that out before installing a new engine and such. I can remove all the parts of course, but not looking forward to pulling the heater core just to clean it. Lazy streak I guess. Lol.

That's a tough one. the tricky part is getting the cleaning solution to go up into the heater core since it's relatively high compared to the rads.

One thought, and it's just theoretical, is to jack up the back of the car, so the ends of the hoses are higher than the heater core. Or close to it. Then get a submersible pump from Harbor Freight, put it in a 5-gallon bucket or bigger filled with your cleaning solution. Connect the output from the pump to one of the rad hoses, and run a hose from the other rad hose back into the bucket. turn it on and let it circulate for a while. In theory that should work.

Now, what kind of solution to use?

Good luck!

[Starter986]

Originally Posted by piper6909

That's a tough one. the tricky part is getting the cleaning solution to go up into the heater core since it's relatively high compared to the rads.

One thought, and it's just theoretical, is to jack up the back of the car, so the ends of the hoses are higher than the heater core. Or close to it. Then get a submersible pump from Harbor Freight, put it in a 5-gallon bucket or bigger filled with your cleaning solution. Connect the output from the pump to one of the rad hoses, and run a hose from the other rad hose back into the bucket. turn it on and let it circulate for a while. In theory that should work.

Now, what kind of solution to use?

Good luck!

Hey Pipe!

Shout. The stain remover. I've been following the 2 vids on utoob. Guy bought a car with coolant/oil mixture... and he used up 2 jigs of the stuff, and mixed with water. The engine was in... car running. Granted, it's a 911... same concept.

https://www.youtube.com/watch?v=9JcjbYPHgjw

That's the first vid.

I like your idea... rear end raised. If you can... try to get everything sealed up so the water has a little pressure. The guy on the video did around 2-3 flushes with the Shout/water mix... then flushed it garden hose a couple of times until it ran clear... then a flush with distilled water.

The challenge I see is the heater core... for it may be closed because the water temp will be cold... tepid. Unless you can get around that... you'll have a little residual coolant in the system. Very small given the 6 gallons they hold.

Good luck!