LT5 Coolant Fill - ZR-1 Net Registry Forums

ralph92ZR1 · 03-29-2007

I need some advice. I have replaced my hoses and clamps after a complete drain of the coolant system. The manual states to flush, fill the system with DI water and the pressure cap on. Run for 3 minutes and drain. Continue draining and flushing until clear. For the final fill with a 50/50 mix of ethylene glycol and DI water, this is added to the neck of the surge tank. Marc's article of Oct. 2005 states watching for jetting from the hose below the pressure cap, thus I believe this is done with the cap off several times to hopefully purge the air. Is this correct??

Thanks for the help. Great to see Spring arrive early.

03-29-2007	#1
ralph92ZR1 Join Date: Dec 2005 Location: Shillington, Penna. Posts: 67	LT5 Coolant Fill I need some advice. I have replaced my hoses and clamps after a complete drain of the coolant system. The manual states to flush, fill the system with DI water and the pressure cap on. Run for 3 minutes and drain. Continue draining and flushing until clear. For the final fill with a 50/50 mix of ethylene glycol and DI water, this is added to the neck of the surge tank. Marc's article of Oct. 2005 states watching for jetting from the hose below the pressure cap, thus I believe this is done with the cap off several times to hopefully purge the air. Is this correct?? Thanks for the help. Great to see Spring arrive early.