Glow Plug Question

   #1  

Underdog57

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Oct 20, 2013
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Location
W Michigan
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LS R4041H
Is there any harm to the glow plugs or the engine if I cycle the glow plugs 2 or 3 times before I start the engine when it is cold. I have been cycling them twice in this cold weather (15-20 degrees) and I think it really helps. The engine starts easily with not much smoke or knocking. I have lots of experience with Diesels but none with glow plugs. Thanks
 
   #2  

TSO

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Apr 7, 2012
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4,439
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SouthEast Michigan
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Massey 1652 HST Cab
I do it too, with my LS, my current Hustler ZTR, my previous Kioti, and my previous Ford commercial mower (when I snow plowed with it).

I also think it helps, and I can't imagine any reason why it would cause harm.
 
   #3  

Gil Case

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Nov 13, 2008
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435
Location
Western CT
Tractor
Kioti 20 HST ancient Rhino traded in
I have read that it shortens the life of the glow plugs, but like you I cycle them a couple of times when it is below 20deg
 
   #4  

Turbys_1700

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May 2, 2005
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Location
Balls Creek, NC
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New Holland t4.75
I cycle my glow plugs a couple of times when it is very cold...
It helps with the cranking...
Here in NC that is not too often...
I would think that it would shorten the life somewhat but I would not worry about it...
To me it is better to help in the starting when cold...
 
   #5  

GManBart

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Dec 10, 2012
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Detroit, Michigan
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Massey Ferguson 241, Kubota SVL90-2
I tried two cycles on them this morning (30*F or a bit less) and did notice less smoke, and that it got to a smooth idle sooner.
 
   #6  

TSO

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Apr 7, 2012
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SouthEast Michigan
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Massey 1652 HST Cab
I tried two cycles on them this morning (30*F or a bit less) and did notice less smoke, and that it got to a smooth idle sooner.

exactly what I found this morning when I cranked her up to plow the driveway, it was about 20 deg. Much smoother start with less smoke.
 
  
  • Thread Starter
#7  
OP
Underdog57

Underdog57

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Oct 20, 2013
Messages
1,006
Location
W Michigan
Tractor
LS R4041H
I tried two cycles on them this morning (30*F or a bit less) and did notice less smoke, and that it got to a smooth idle sooner.

I've heard that they are cheap & easy to replace??? Anybody know what they cost? Just curious are they easy to replace on the Mitsubishi? I don't anticipate ever having to cycle them more than twice, so I don't think I'll ever have a problem.
 
   #8  

uphere

Silver Member
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May 31, 2007
Messages
152
Location
Ontario, Canada
I have had minus 30degree C here the last couple of weeks - only cycle my 4041 once (have rad hose heater as well) but have found the semi-synthetic 15W40 a big difference ... no ping at all.
 
   #9  

footer200

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Oct 4, 2009
Messages
85
Location
Bowmanville Ontario
Tractor
John Deere 4300
The manual for my Dodge Ram cummins diesel suggest 2-3 cycles in very cold conditions. Although it has a grid heater (no glow plugs) like my John Deere, so it is only heating the Intake air. I actually hold the glow plug (grid heater) on for a bit after the tractor starts to help heat the intake air in extreme cold conditions.
 
 
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