RTV900 Oil Temp Sensor

chilibit · Oct 30, 2005

Hopefully this is not a duplicate post. I thought I posted this, but ...

I have a new RTV. Oil temp gauge does not register. Maybe the wiring, the gauge, or the sender. Anyone know which sender on the motor sends this value to the gauge? Can I check the output with a VOM?

I know, it is a dealer issue, but also a chance to learn something.

The 900 is a fine little machine. I like it.

Thanks for any thoughts.

Vince

http://www.northamericanmotoring.com/forums/forumdisplay.php?f=85

lloyd123 · Oct 30, 2005

To my knowledge, there isn't a oil temperature gauge - just a coolant temperature and a fuel gauge. There is a oil pressure warning light. You must be looking at the coolant temperature gauge. I believe you can disconnect the lead to the temperature sensor and ground it to the block to see if the needle in the gauge will respond. I'll check in the shop manual and confirm.

lloyd123 · Oct 30, 2005

Here's a attachment I posted awhile back for someone having problems with their coolong fan:

http://www.tractorbynet.com/forumfiles/489299-cool4.jpg

It will give you the procedures to check it out.

lloyd123 · Oct 30, 2005

Sorry - please ignore my last post.

I've attached the procedures for checking the coolant gauge and sender.

chilibit · Oct 30, 2005

Thanks for the jpegs lloyd123. Are they from the service manual? Is that something that is available from the dealer?

My bad on the fluid. Yes, coolant.

I ran the first two checks. Flunked both. My guess is a bad sensor.

Again, many thanks. They are even decently written.

A cheap windscreen that folds forward to the top of the grill guard or can be raised to block frigid air (ala early LandRovers or even Toyota FJ40s) is feeling like a winter project about now.

lloyd123 · Oct 30, 2005

They are from the RTV900 workshop manual.

I purchased it through tractorsmart.com in May 2004. They still offer it for $67.73 plus $5.00 shipping.

The Kubota part number is 97897-15300.

chilibit · Nov 2, 2005

We replaced the temp sensor. No fix. Since the wiring harness plugs are the same for the fuel gauge and the temp gauge, we plugged the fuel harness into the temp gauge. It pegged because the tank was full. So it sounds like the gauge is good. That leaves the wiring harness. Not what I wanted to hear. And yes, I am talking Water temp, not oil. The edit window on the subject line has expired.

Other than this, the 900 is great. It even shifts fine.

Vince

lloyd123 · Nov 2, 2005

Well, like you said in your first post, it's a new machine so it all will be handled by the dealer at no cost to you.

I've had mine now for a year and a half/110 hours and no problems. I had some mild fogging of the gauges when it was new but that has actually cleared up now on it's own.

Good luck - you'll enjoy it, I'm sure.

whoodle · Nov 4, 2005

My temp guage almost never registers unless I drive a lot of hills in low gear. It is probabally alright.

chilibit · Nov 5, 2005

whoodle,

Do you mean that it absolutely does not move whatsoever. Mine does not move at all. I ran another 900 for 10 minutes and you get a noticeable movement of the gauge. Cycling the ignition helps to see it. The gauges are on national and international backorder. Kinda makes you wonder why.

Vince