Question about Glow Plugs

[Bulldog]

I am curious. Glow plugs seem to be a regular topic here at OTT.

On my B 7100 it was a must to use the glow plugs or it would not crank at all. My brother had a 2000 model B 7500 and it was about the same as my 7100 as far as cranking went.

My L 3000 and both M 9000 tractors never need them. The big tractors aren't used much in the winter but I use my L 3000 year round. I have never needed to use the glow plugs to get it to crank. I will use them just to make it easier on the engine in the cold but it isn't a must. I realize it doesn't get as cold here in Georgia like it does in the northern states. We rarely get snow but I did help some of my neighbors out by moving snow on their street so their wives wouldn't have to walk up the hill to get home. One of these times it was about -10 degrees and I fired my L 3000 up without them.

My question is do you guys need them or just use them to make the start up easier? Just wandering which one it is.

 

[handyman]

Bulldog I have a b7100 its a must to preheat the B7100 gloplugs for about 40-60 seconds or it will not start. If mine has run a couple hours and I let it set for 30 minutes heat again always starts but have to heat.handy

 

[Bulldog]

My 7100 was the same way as was my brothers 7500. My L and M just don't seem to need it. I no there is a huge difference in direct and non direct injection engines. That's understandable. It just seems to be a subject that gets a lot of attention here at OTT.

 

[daniel.ray77]

With my L225DT if its a cold start or the motor has sat for an hour or so and its somewhat cold outside, it will not start without them. I can pull the decompression knob and try it that way but even then it still really struggles to start.