my fix to overheating tractor

[motoman]

Sherlock's amateur failure analysis

As a minimum put an oil temp ga on the a/c tractor. The bagger system may hurt. There is back pressure load as blades try to fill baskets. I have noticed accelerated oil temps when 3 bskts full. Wt of damp grass in early summer (120 lbs?) is significant. Neighbor uses sweeper system. possibly safer. Avoiding grade mowing (?) is helpful. Mr Intek was on grade when he belched and spat his pushrod into the sump. If ga reaches 270F pull over into shade, see if temp can stabilize. Shutting off while overheated may encourage deposits on intake valves especially. My experience is "runaway" temp climb after 230F. I have opened Mr. Intek twice for heat related repairs and not seen what looked like lubrication problems. Misses, belches and backfires may be warning signs of valvetrain distress. Take your tractor's temp.

 

[motoman]

when Dixie Chopper start putting oil coolers on their mower engines - Kohler denied its necessity
now - its on all their bigger engines (like one on pict)
location, restriction of air flow and clogging-in of this small radiators (oil, dust, mud and degrees magnet (collector) - could be questionable, but not it's usefulness

demhustler, Thanks for the BP. How big is the cooler? Do you know typ operating oil temp? Where is it mounted?
Motoman

 

[motoman]

Motoman's obviously afflicted with Moweritis with elements of Tinkeritis.:laughing:....so "Robert brown".....why don't Brit's make computers?:licking:

reddragon, You're right . Yesterday I was diagnosed with acute tinkeritis at the MOWDECK clinic. There is no cure, but most people can lead a meaningful life. I got an Rx , but Sears pharmacy did not have clue. So I'm in physical therapy building the "crossflow tunnel." Think it will help? Motoman

 

[reddragon]

there is no CURE!....you can only learn to manage it:biggrin:

 

[benski]

Re post #103; You weren't ordering lawnmower parts at the Sears pharmacy, were you?:laughing::biggrin:

 

[motoman]

Re post #103; You weren't ordering lawnmower parts at the Sears pharmacy, were you?:laughing::biggrin:

I tried to order the over heat tranquilizer and the oil temp probe shown in the Intek manual. They never heard of 'em.

 

[benski]

Doctor/analyst type in lab coat: "Yes, yes, I see, uh huh..":biggrin:

 

[motoman]

The cross-flow tunnel is installed. Test drive 86F ambient, no bagger system. Grass out of up spout. Mowed dry green light grass and weeds. Some grade mowing. Oil gauge temp climbed to 230F. Turned on fan. Temp stable at 230F several minutes, them dropped to about 225F and held for rest of mowing (15min). Before tunnel temp was not reduced when fan was run during mow.
Tunnel runs side panel to side panel , 7" dia inlet outlet. Possible more to come by slimming down the fan mount which is currently blocking some air in. Before shutdown ran fast idle 5 min. hood down. Temp dropped to about 205F and stable. (Recall the "old" cool down was with the hood raised) Motoman

 

[reddragon]

sounds good:thumbsup:......how bout pictures?

 

[motoman]

sounds good:thumbsup:......how bout pictures?

hmmm...well ok since you asked...