Re: Radiator flush fluids

Posted by Spencer B. On 2024/4/11 20:52:03

Mike (su8overdrive), thanks for the further detail on this. There is no such drain plug on my 443’s engine block. I currently have the water jacket off and have given that area a thorough cleaning. If my only real method for draining things after your flushing method is via the draincock do you think the method you described will be effective? I’m going to swallow my pride here to admit a mistake I made last year in that I used tap water rather than reverse osmosis water, so I am concerned there may be scaly mineral buildup on my radiator fins. (I was sure to use No-rosion at least to prevent rusting). (Also I do know Mike G at Max Merritt and have talked to him several times, Mike C at Tucson Packard too - they are both great. I’ll be sure to reach out to the others you mention.)

I also do see some rust throughout my system and so think a flush with Evaporust might also be productive for getting stuff out of the system. The thing I’m discovering with this car is that, while it was generally well-restored and well maintained, it seems maintenance did slip some in the later years of the former owner and so I’m just trying to get systems back into top operating condition.

Fish’n Jim I have been checking a number fo the things you mention. Water pump seems pretty good, fan blows well. One area of concern is that a small dripping leak seems to occasionally occur in the radiator (about 2/3 of the way to the top) after longer periods of driving in hot conditions. I’m not sure what to make of that. I’m also not sure how to check for rusted air dams or what a rusted Impellor is (is this part of the water pump?). I appreciate all the detail you provide, I hope you’ll excuse my very limited knowledge on all this.