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After you're done pinning, before restarting the motor, you can open the two coolant drain plugs on the bottom and all the coolant in the engine along with any debris will flush down and out. Drain it into a big clean 5 gallon bucket and after you can pour the coolant through a coffee filter into another bucket. If you pin it right and according to the directions I gave you, you should find none to almost negligible debris in the filter, but any, the above method will give you peace of mind. To do a full system drain/flush follow the directions below by disconnecting the hoses at the coolers.
About 2-3 gallons will remain in the system (heater system and such).
After that I prefer to refill with fresh Porsche coolant keeping the coolant to water ratio at 20% as per the GT3 Cup specifications below. Since the initial fill has formed the protective anti corrosion coating within all the internal walls of the cooling system components, the subsequent refill of a 20% concentration is all that is needed to maintain the corrosion protection. The mix of 80% distilled water also makes for a cooler running car as water absorbs and dissipates heat much more efficiently than coolant, anywhere from 10-20 degrees cooler over a 50/50 mix. I also add about 4 teaspoons of Jet Dry to the coolant to improve the surfactant properties of the mixture, which decreases water tension and improves wetting of the internal surfaces, just as Water Wetter claims. I am not a fan of Redline Water Wetter because I don't think it has the same anti-corrosion protection additives at the Porsche coolant, seems to have no lubrication for the water pump, and I've seen where it causes strange fallout of chemicals in the cooling systems.
Thanks great write up, will be doing this on my GT3 soon.
Stupid question, but can you not wire the hose clamp to the motor to prevent the pipe from coming out. It will need to be repaired but could stop fluid from dumping on rear tires.
There is maybe 1 fitting you could loop safety wire around the clamp and then around another component, the rest would need a PITA... and that's based on pictures of the engine out of the car.... In car would be another story...
When mine failed it was a catastrophic coolant dump and when I looking in the engine bay with a flashlight the fitting had not completely popped out of the hole, just backed out a bit and unseated. At 15PSI even just a slight gap allows quite a bit of fluid out rather quickly...
yesterday finished pining ( 6 )the left side of the engine, alternator also installed back. now this week will do the right side. also did clean engine bay.
who ever wants to do this task, do it slowly, make sure you feel comfortable working on engines.
finally GT3 engine pinning is done, last Monday did the right side of the engine and assemble everything back the same night. Did start the car 24 hrs later and no leaks.
finally GT3 engine pinning is done, last Monday did the right side of the engine and assemble everything back the same night. Did start the car 24 hrs later and no leaks.
Steve W, thanks again.
Wow. Great job. How long did the actual labor take?
01-06-2015, 09:33 AM
