radiator question

Mon Oct 04, 2004 8:43 pm

i have a 66 cub and when it gets up to operating temperature it starts to spit out antifreeze out the overflow. can i use a pressure cap on this? also how far from the top should i fill this? thanks

Mon Oct 04, 2004 8:54 pm

You can use a low pressure cap if you want but it probably isn't necessary. The thermo-syphon cooling system will spit out the excess fluid and find it's own level which is usually about 1 1/2 - 2" below the neck opening. Generally, if the level is above the core tubes, you are probably OK. I think you'll find that if you leave it alone, it will seek it's level and stop spitting coolant. If you do go to a pressure cap, a 4 to 7# cap is about as much as your tractor will need.

Tue Oct 05, 2004 8:24 am

In addition to BigDog's good advice,

Don't use a pressure cap on your 40 year old coolling system, pressurizing it will pinpoint each weak spot with a leak.

Tue Oct 05, 2004 7:46 pm

i did put a new radiator in about 13 years ago, thats still considered new in cub years right. ha ha. thanks for all your advice, i think i'll just leave it alone. also i just found a grease fitting for the rear pto, it was under a bracket, hopefully didn't ruin anything.

Tue Oct 05, 2004 7:53 pm

Don't bother to grease that fitting unless you are using the pto in a stationary mode such as a buzz saw. A single shot of grease once or twice a year is enough. There is another string dealing with this on the forum. The pto is splash lubed with oil from the differential when the tractor is in motion.

Tue Oct 05, 2004 7:56 pm

good that what i was hoping to hear, i thought i may have ruined the bearing.