using glow plugs at start

[BlackOps]

stupid question - is it necessary to always sue the glow plugs to start your tractor? or once it is warm there is no need to? last Fall when i got the max 25 i had to move some wood and in between loading i shut it off. a few times it would not start until i went through the glow plugs cycle and figured that it was always necessary. But now i am thinking that that may not be correct?

 

[Agvg]

If it starts its no problem, suppose its a Indirect injection diesel, strange they don't use direct injection diesels.

 

[davesl708]

I always give the glow plugs at least 3-5 second hit up to 25 sec. depending on the temp. My starter never cranks more than 1 sec. before it starts.
Is it necessary? I think it puts less work on the starter and considering the cost of a starter worth the few seconds.

 

[Agvg]

Strange that starting diesels are so different, have two tractors that starts with no heating or glow plugs in -20c

 

[BlackOps]

more comments welcome please.... thanks for the responders too!

 

[teg]

I use glow plugs every time from a cold start. If the tractor is warm, truly warm, I just crank it.

As for unloading wood, I keep the tractor running unless it will be more than 15 minutes. One tractor at work, during the busy season. We start in the morning... and only shut it off when we are done with it. Yep even during lunch.

 

[k0ua]

On my Kioti the glow plug cycle is automatic. Controlled by a timer and a temperature sensor in the water jacket. It will not run the glow plug cycle if the water temperature is 86 f or above. So most of the time restarts are without glow plug activation. Unless the temp is very cold and the time is over an hour between starts. During the hottest part of summer, the cycle never runs unless you start early enough in the morning.

 

[BlackOps]

used it today to move come chips and the one time i stopped and then started it - i tried it without the glow plugs and it seemed to start OK. i may have been overdoing it with the glow plugs for the last year - could kick myself in the butt!

 

[DavesTractor]

BlackOps, I use the plugs as needed. Always on the first start of the day, and then if the tractor wants it. If it fires up quickly without the plugs, you are good to go. The Max25 is sure a great little tractor.

 

[4570Man]

If my tractor has been running within about 30 minutes it starts fine without glow plugs. If it is hot outside, but it hasn't been started already it needs glow plugs. I had a case 235 that never needed glow plugs. You could just turn the key and it would fire right up. It was a lawn mower tractor so no cold starts for it.

 

[davesl708]

Strange that starting diesels are so different, have two tractors that starts with no heating or glow plugs in -20c

There are some interesting videos on youtube that show diesels starting without glow plugs in sub zero temps.

Looks like some of them worked the starter pretty hard to get them to start.
Glad we have glow plugs to help.

 

[DavesTractor]

Different engine designs require different starting aids. The old Yanmars would start without glow plugs just fine down into the 40'ish *F range. That always amazed me. Yet a similar age Kubota, in my experience, always needs glow plugs when cold, just like the Mitsubishi's. I think it is just the way they are designed, but I'm sure some engine expert will chime in on the reasoning.

 

[buickanddeere]

stupid question - is it necessary to always sue the glow plugs to start your tractor? or once it is warm there is no need to? last Fall when i got the max 25 i had to move some wood and in between loading i shut it off. a few times it would not start until i went through the glow plugs cycle and figured that it was always necessary. But now i am thinking that that may not be correct?

How long does it require to load ?

 

[buickanddeere]

When some people say " starting without glow plugs " how many are unknowingly talking about an open combustion chamber diesel with an intake manifold heater and don't know the difference . Usually related to the persons who spray ether into intake manifold heater grid or into glow plug engines .

 

[Agvg]

A well designed DI diesel should start easy in the cold, a very good example are Perkins AD3-152

 

[BlackOps]

Thank you all - Dave's tractor - so if i use them all the time did i so called 'wear them out' as such? just curious. wil i have to replace this unit or item sooner than if i hadn't been using them as i was told and read.???

sorry for the dumb follow up.

 

[DavesTractor]

BlackOps, they are made to cycle each time you start, so I doubt you are shortening their usable life much if any. They do wear out, anything that goes from cold to around 2000*F in a matter of a few seconds will have a life span. But I'd not worry about that. You can replace a lot of glow plugs for what a starter costs. Interestingly on my new Dodge diesel, you push the button to start and it will not crank until it preheats. Not an operators choice anymore.

 

[Trillium Farm]

HI Agvg, how do you like your Ursus tractor?

 

[Agvg]

Its a good old communist tractor, had it for 25 years but it has only 790h so I can't say its in daily use. Have so far not had any trouble exept I had to do a brake job because of age and little use.

 

[Trillium Farm]

I've seen it on a polish industries video and it seemed a great improvement, design wise, on the old one.
In Europe you are getting more brands and we in N.A. less and less