977 20A Radiator

I guess you could do it that way but you,d need the bottom pipe off so the crud can be washed out from below. Also if you have a steam jenny you could steam it out but if you have the time why don,t you remove it & take it to a radiator shop & have it boiled out & then you got a good job on it.We always sent ours out from the dealer to a rad. shop & had it done & they were like new then when they came back. Some had to have repairs but all of them were boiled out.

Yes give it a try in the tractor to clean it out. No one knows if they never had liners out of an engine how much crudy, sandy type dirt builds up in the water jacket area around the liner area.I,m sure some of this if it,s built up in your block could be circulating in the coolant & getting into the radiator passages. It is even pretty hard to get it flushed out of the block by just draining the block.You could try with the water pipes removed & the block drain plug taken out to take a hose & keep flushing it out from the thermostat housing but a least one will need to be removed to get the water down through the block.