18-FEVR,
I have Ron Davis radiator, and it came without a petcock. It didn't take long to get tired of yanking the lower hose off to drain it. So, I bought an aluminum bung, had it welded in, and installed a petcock. It must be something peculiar to high performance aluminum radiators. Maybe you have to specify wanting a petcock,
so they can charge you $75 more.
AngliaBob
Yep you gotta pull the hose.don't pull the hose all the way off at first.Pull it enough so liquid drains slowly.If you pull it all the way off you're gonna get coolant everywhere.What year nova do you have?got any pics?I love novas!!!BM
Or, get a long piece of vinyl tubing, and siphon it out, through the cap hole, until it's lower that the stat housing. Less chance of building in an air lock.
Yep you gotta pull the hose.don't pull the hose all the way off at first.Pull it enough so liquid drains slowly.If you pull it all the way off you're gonna get coolant everywhere.What year nova do you have?got any pics?I love novas!!!BM
Or, get a long piece of vinyl tubing, and siphon it out, through the cap hole, until it's lower that the stat housing. Less chance of building in an air lock.
I do the same with one thing added if it has side tanks I got a hand suction/pressure pump from Harbor Freight works great and suck the rad near dry I use it even when I have a drain it is easier once it gets started it will go to syphon to finsish up pum is about $7 works for me Ed ke6bnl
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