Bubbles in antifreeze flush
I've emptied my radiator antifreeze and used Fleetguard Restore following directions. I have a '99 ISC 8.3L Cummins diesel. After using the Restore product, I've flushed the system 6 times and on ev...
Forum Discussion
Ed, I've used Fleetguard Restore and Restore Plus, and can vouch for the fact that it takes FOREVER to get it rinsed out.
Does the 8.3L have drain plugs in the block? If so, they should be removed every time you drain the cooling system. Otherwise, you are leaving several gallons of water behind in the engine.
Also, you should just use tap water to flush with until you are satisfied it's rinsed, then rinse it once or twice with distilled water so that whatever water is left behind is MOSTLY distilled.
What I have done on my truck is remove the block plugs, open the radiator drain, and remove the coolant filter so that the water will run out of each location. Then, put a garden hose in the degas bottle (does the 8.3 have one of those?) and turn the water on as fast as necessary so that the degas bottle remains full. Use two garden hoses if you have to. Periodically start the engine and let it run for a few minutes just to help mix the clean water inside the engine. I'd make an effort to drive it around a few times with the rinse water in the system just to make sure the t-stat's open, especially when you're doing the final rise with distilled. It's probably never going to be bubble-free, but you can get it rinsed good enough this way.
:):)
Does the 8.3L have drain plugs in the block? If so, they should be removed every time you drain the cooling system. Otherwise, you are leaving several gallons of water behind in the engine.
Also, you should just use tap water to flush with until you are satisfied it's rinsed, then rinse it once or twice with distilled water so that whatever water is left behind is MOSTLY distilled.
What I have done on my truck is remove the block plugs, open the radiator drain, and remove the coolant filter so that the water will run out of each location. Then, put a garden hose in the degas bottle (does the 8.3 have one of those?) and turn the water on as fast as necessary so that the degas bottle remains full. Use two garden hoses if you have to. Periodically start the engine and let it run for a few minutes just to help mix the clean water inside the engine. I'd make an effort to drive it around a few times with the rinse water in the system just to make sure the t-stat's open, especially when you're doing the final rise with distilled. It's probably never going to be bubble-free, but you can get it rinsed good enough this way.
:):)
