Thermostart vs magnetic oil pan heater

[Gary Sweat]

The ignition switch on my 3810D and many other Yanmars has a TS position built in its turned to the left like accy on a car ign sw food for thought...

The TS works also when the ignition switch is turned to start however it takes longer than just cranking to fire up the TS unit. More food for thought for wiring it into your system. In other words the solenoid wire is good for wiring it in just don't clutch it while you turn the ignition switch to start for the first 10-20 seconds when you want to fire the TS up when its cold.

I took mine out and ran it outside the engine and it will just start a fire @ 10 seconds and 20 is probably the max that I would feel good about using it. hth

Btw I have a small magnetic oil pan heater and I use both when the tractor has to sit in an un-heated garage and it starts just fine.

Thanks for that info. I replaced the ignition switch years ago with one from an automotive store. It has the accessory position on it just nothing hooked to it. I was thinking that if I do put this in, I could use a push button switch.

Do you have to keep power to the TS while you are cranking the engine? I understand how the TS starts the flame but not how it works after the flame starts???

 

[winston1]

I believe it is a continual flame until you release the switch. Switching from TS to ignition may put the flame out for a second or two. Evidently Yanmar thought it good to continue with thermostart while cranking or they wouldn't have wired it that way. I concur with Car Doc that it is wired that way, I have tested mine for power while in the crank mode.

 

[Car Doc]

Thanks for that info. I replaced the ignition switch years ago with one from an automotive store. It has the accessory position on it just nothing hooked to it. I was thinking that if I do put this in, I could use a push button switch.

Do you have to keep power to the TS while you are cranking the engine? I understand how the TS starts the flame but not how it works after the flame starts???

Welcome! Yes the way mine is setup the ignition switch powers the TS every time you crank and it stays powered as long as the switch is in the start position. I hope you were able to follow my not clutching procedure? hth

 

[California]

Gary, the early Yanmars used a push button, then they went to an ignition switch that powers the TS when it is twisted left. I would say the difference is trivial.

The manual shows an optional jumper across the 'ignition' switch that also heats the TS when power is sent to the starter. My US Yanmar has that jumper. I don't know about the gray models. So it's fine to hold down the TS button while cranking.

I recommend the later fuel bowl that is inline in the injector return line so it is self-filling. Pouring 1.5 oz of diesel from a 5 gallon can into the Old School reservoir (like in my photo) is a PIA.

 

[Egon]

Why not put in a block heater or inline hose heater and be done with it!:thumbsup::thumbsup:

 

[Gary Sweat]

Welcome! Yes the way mine is setup the ignition switch powers the TS every time you crank and it stays powered as long as the switch is in the start position. I hope you were able to follow my not clutching procedure? hth

I read the part about the clutch. If you are referring to it killing the TS power, I don't have any of the nice little safety switches. It does have a small sticker in Japanese that I think says "If you stand in front of the tire while turning the starter, I will run over you". Or at least that is my interpretation of it

 

[Gary Sweat]

Gary, the early Yanmars used a push button, then they went to an ignition switch that powers the TS when it is twisted left. I would say the difference is trivial.

The manual shows an optional jumper across the 'ignition' switch that also heats the TS when power is sent to the starter. My US Yanmar has that jumper. I don't know about the gray models. So it's fine to hold down the TS button while cranking.

I recommend the later fuel bowl that is inline in the injector return line so it is self-filling. Pouring 1.5 oz of diesel from a 5 gallon can into the Old School reservoir (like in my photo) is a PIA.

I dug around in my manual with my Japanese dictionary in hand and guess what, it was an option on the YM1900 and it had the injector return line keeping the fuel bowl full. I talked to Hoye and they have a complete kit but it seems a little pricey for what you get plus the bracket they show won't fit on the engine to hold the bowl.

I'm going to wait a little while before ordering anything until I have it all straight in my head as to what I need. So far it seems I should put both the TS and an oil heater on it.

 

[Car Doc]

I read the part about the clutch. If you are referring to it killing the TS power, I don't have any of the nice little safety switches. It does have a small sticker in Japanese that I think says "If you stand in front of the tire while turning the starter, I will run over you". Or at least that is my interpretation of it

Hahaha ok yeah I didn't mention the clutch safety switch was necessary to use my procedure I had thought about it but assumed yours would have one!

But now you mention it lol wire it to the accessory side and the start side of the ignition switch you have and it will work just fine! Don't get run over please! Use the accessory side when its cold and you want to preheat it btw. My switch has the jumper California mentions and mine is gray market.

You ought to figure in the fuel return supply IMHO for your new setup like California said it is a pia with the reservoir setup I can only imagine it is, mine has the return setup and it is very simple and functional mounting it would be a piece of cake easy.

 

[Gary Sweat]

Why not put in a block heater or inline hose heater and be done with it!:thumbsup::thumbsup:

We had those type of setups in northern Indiana where I grew up and they worked fine. The hoses on this engine are short and in a tight place to get to so I was hoping that the TS or the oil heater would work for me.

 

[Car Doc]

Why not put in a block heater or inline hose heater and be done with it!:thumbsup::thumbsup:

Egon,

There is no room in the coolant hoses they are absolutely inaccessible for an inline heater which needs to go in a lower hose the block heater is the only possibility.

I have mine down for a head gasket replacement at this moment so I will check on the application of a block heater in a freeze plug and get back tomorrow, IMHO that will be the only one that could be feasible.