wd45 overheating

[Rich J]

I have had this old tractor for many years.It has had a cracked block the entire time.The crack is on the outside of the block just behind the carburater.The problem i have beenhaving is it keeps running hot lately after running for short time even without a load.I have used meany different types of products to seal the leak in block.Itook radiator off a few years ago and had it checked ,it was ok.The radiator cap seam to leak a little water all the time ,could this be the problem!If the t-stat is sticking can i just take it out to see if that is the problem!Or could the block be clogged do to the sealants i have tried !Could i try some type of radiator flush to clean it out. I am out of ideas as to what i can do.

 

[old]

Could be a bad thermostat or a clogged cooling system. I would replace the thermostat and alo I would do a vinegar flush as in drain the system and fill with vinegar and run it till good and warm let cool then rig up a hook up so as to back flush the engine block from the block drain plug

 

[BushogPapa]

Put a New T-Stat in it, don't re-use the old one.

Old has a great idea, to back-flush the system..

Ron.