Cooling System Upgrade
#3
I would add the 4 row radiator, 6 or 7 blade clutch fan, and if you don't have a fan shroud add that too. There was a good thread posted on this topic a year or so ago. I believe that Joe P. mentioned in some situations the fan shroud may not help but a detriment. I don't remember enough about the details to explain it. But in my part of the country for the kind of driving I do changing those items stopped my 1970 from overheating in the summertime. If you have time you might do a "search" on overheating or 4 row or 4 core and read through the posts that come up. John
#7
congrats for correctly referring to the radiator as a 3 row, not a 3 core.
radiators have one core that can have one or more rows of cooling tubes.
The radiator a shroud is a must with the fan blades only partially into the shroud
I switched from a 5 blade flex fan to a HD 6 blade non-flex with a clutch and the summer ac, stop and go temps declined 15 - 20 degrees. much quieter also
.
radiators have one core that can have one or more rows of cooling tubes.
The radiator a shroud is a must with the fan blades only partially into the shroud
I switched from a 5 blade flex fan to a HD 6 blade non-flex with a clutch and the summer ac, stop and go temps declined 15 - 20 degrees. much quieter also
.
#9
Just be aware that the four row radiator has wider tanks than the two and three row units. You will need to get a four row top plate and the correct bottom brackets that are spot welded to the core support. Alternately, you can modify the brackets you have if you are a decent welder. Finally, you can also get an aluminum radiator that will fit your narrower brackets.
#11
Look at your water pump if it is off the motor....There were two different size impellers and most rebuilt pumps use a cheap stamped impeller...... If you can find a pump with a large impeller and the original cast impeller I use those on my motors........
I use high performance Robertshaw thermostats and if is a totally new system then run distilled water instead of tap water with your antifreeze and then a bottle of Water Wetter.....
I use high performance Robertshaw thermostats and if is a totally new system then run distilled water instead of tap water with your antifreeze and then a bottle of Water Wetter.....
#12
Look at your water pump if it is off the motor....There were two different size impellers and most rebuilt pumps use a cheap stamped impeller...... If you can find a pump with a large impeller and the original cast impeller I use those on my motors........
I use high performance Robertshaw thermostats and if is a totally new system then run distilled water instead of tap water with your antifreeze and then a bottle of Water Wetter.....
I use high performance Robertshaw thermostats and if is a totally new system then run distilled water instead of tap water with your antifreeze and then a bottle of Water Wetter.....
#13
I use these, too. However, they are now sold under the Mr Gasket brand.
Good idea - The minerals in tap water are horrible.
Good idea - The minerals in tap water are horrible.
#17
I just discovered they're making a repop top plate for the 4 row! Anybody seen one in person yet? How do that compare to the original?
http://cgi.ebay.com/ebaymotors/ws/eB...NA%3AUS%3A1348
http://cgi.ebay.com/ebaymotors/ws/eB...NA%3AUS%3A1348
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