1994 B7100HST

robplc1 · Aug 9, 2011

I have a B7100 that leaks antifreeze under pressure only ( during mowing) . It looked like it was coming from the bottom of the radiator. I have taken the radiator off and drained the system. I am going to have it pressure tested. If the leak is still there after I ensure the radiator is good, replace the thermostat, and top and bottom hoses, what else could leak antifreeze?

Rob Maroldi

Muhammad · Aug 9, 2011

Welcome to TBN.

art · Aug 9, 2011

You have brought up all the good spots to look! Good luck. And welcome aboard!

Egon · Aug 9, 2011

Welcome:thumbsup::thumbsup:

Have you checked the whistle/overflow tube for overheating.

Bird · Aug 9, 2011

Rob, maybe a pressue test is a good idea, but to elaborate on what Egon said. I had a 1995 B7100 and I'm assurming yours is about the same. It had no coolant recovery jug so if you filled the radiator to the top, when it warmed up, it was going to push some out the overflow tube and when it cooled down, you could take the radiator cap off and the level would be down at least an inch from the top. Pushing the coolant out as it warmed up did not cause it to "whistle" as I was assured it would if it started to overheat.

I don't know how long you've had that tractor so you may already know all that, and if so, just ignore this post.