L5030 overheating
- Thread starter Rodledge
- Start date
First welcome to the forum.
Need more information, my crystal ball is out for repairs at the moment.
Are you in Alaska plowing snow in the Brooks Range from the latest snow storm or in Utah moving dirt under the current heat dome? How long has it been overheating? What have you done, if anything, to determine the cause? How old is your tractor and what maintenance have you done (cleaned radiator, cleaned air filter)? etc. etc.
Not trying to be a wise guy but the more information you can provide the better the answers you'll get.
Need more information, my crystal ball is out for repairs at the moment.
Are you in Alaska plowing snow in the Brooks Range from the latest snow storm or in Utah moving dirt under the current heat dome? How long has it been overheating? What have you done, if anything, to determine the cause? How old is your tractor and what maintenance have you done (cleaned radiator, cleaned air filter)? etc. etc.
Not trying to be a wise guy but the more information you can provide the better the answers you'll get.
North Idaho Wolfman
Moderator
Staff member
Lifetime Member
Equipment
L3450DT-GST, Woods FEL, B7100 HSD, FEL, 60" SB, 743 Bobcat with V2203, and more
My Kubota L5030 HST started overheating last year while bushhogging my fields.
It spews steam and boiling water out the tube from the overflow tank.
Normally it runs at four to five bars on the instrument panel. Now it gets up to six of the eight bars and blows water and steam out.
Cleaned the outside of the radiator,
flushed the radiator twice,
replaced the anti freeze several times,
replaced the radiator cap,
replaced the thermostat,
replaced the water pump and still it overheats rather quickly when pulling a load like the bushhog.
Usually settles out at four bars when just low level idling or moving around the yard slowly.
It seems the next step is replacing the radiator, but I'm reluctant to put out $1,500 to $2,000 for a new one not counting labor which I usually do.
Only got about 800 hrs on the machine.
Need suggestions on what or how to test the radiators function!
It spews steam and boiling water out the tube from the overflow tank.
Normally it runs at four to five bars on the instrument panel. Now it gets up to six of the eight bars and blows water and steam out.
Cleaned the outside of the radiator,
flushed the radiator twice,
replaced the anti freeze several times,
replaced the radiator cap,
replaced the thermostat,
replaced the water pump and still it overheats rather quickly when pulling a load like the bushhog.
Usually settles out at four bars when just low level idling or moving around the yard slowly.
It seems the next step is replacing the radiator, but I'm reluctant to put out $1,500 to $2,000 for a new one not counting labor which I usually do.
Only got about 800 hrs on the machine.
Need suggestions on what or how to test the radiators function!
North Idaho Wolfman
Moderator
Staff member
Lifetime Member
Equipment
L3450DT-GST, Woods FEL, B7100 HSD, FEL, 60" SB, 743 Bobcat with V2203, and more
Much better info!
First test is super simple, with it cold, open the radiator cap, top it off with coolant, leave the cap off and start the engine, look into the radiator for bubbles.
First test is super simple, with it cold, open the radiator cap, top it off with coolant, leave the cap off and start the engine, look into the radiator for bubbles.
Russell King
Well-known member
Lifetime Member
Equipment
L185F, Modern Ag Competitor 4’ shredder, Rhino tiller, rear dirt scoop
Is there a screen in front of the radiator that catches the large chaff? If so, have you cleaned it?
make sure your fan belt has the correct tension. tensioning that belt is part of routine maintenance. if the fan belt is loose it will over heat
I guess I'm doing this right - my first response on a forum!
The weather has been quirky in Alabama this year with on and off rain and heat so I haven't gotten back to fixing my problem until now. Last evening I followed your instructions and observed for bubbles None seen. The radiator and water did heat up and after about ten minutes the temp gauge got up to four bars. So I sent my grandson to the field to bushhog for about 20 minutes. The gauge was at four bars (pretty normal and I didn't hear any boiling of water). The air temp was about 80 and the grass was high and somewhat wet from an earlier rain. I will add that I have mostly water and some radiator flush in there at the moment and I had used a air pressure nozzle to clean out the radiator earlier in the day. I didn't think that I got much dust or debris out but it must have helped. Today we checked for bubbles again and at about 4 to 5 minutes got a few bubbles probably near the time the thermostat opened. At 10 minutes the temp gauze was at four bars. Will try do some more field work later in day.
i do have two - That smaller one is for the hydraulic fluid in the HST model.
Thanks
North Idaho Wolfman
Moderator
Staff member
Lifetime Member
Equipment
L3450DT-GST, Woods FEL, B7100 HSD, FEL, 60" SB, 743 Bobcat with V2203, and more
Do not keep running it it with radiator flush in it.
run lots of water through it to clean it all out.
Put 50/50 coolant / water mix in it and see what it does.
run lots of water through it to clean it all out.
Put 50/50 coolant / water mix in it and see what it does.
Yeah coolant tends to keep engine cooler than plain water, not only does it have a higher boiling point, but it is "wetter" as in it makes better contact with the hot metal and transfers the heat from the metal to the coolant better/faster ...