glow plugs for 721D ???

[Jinzo Ningen]

Dumb brainfart-type question, but does the 721D diesel engine utilize "traditional" glow plugs to start? I wonder because I cannot see a 120v grounded plug to pre-heat them, like I used to have on my diesel truck. If this mower does use glowplugs then it may be time to get new ones... I tried to start it a week ago when it was really cold and got nothing. Everything else was good to go but she wouldn't start. That makes this tractor worhtless to me as is, since I intend to be ready to throw some snow if we get another winter like last year.

Thanks.
JN

 

[mechanic mark]

Grasshopper Lawn Mower Parts / Grasshopper Parts - The Mower Shop yes, check fuses in fuse block first.

The Mower Shop, Inc. - Grasshopper Lawn Mower Parts Diagrams

https://www.google.com/webhp?source...&ie=UTF-8#q=glow+plugs+&+small+diesel+engines

 

[173abn]

on my 928D you turn the key the opposite way to heat the plug,same as my YANMAR tractor....russ

 

[reynoldston]

Not all diesel engines have a glow plug system. Just a small spray of starting fluid pass the air cleaner.

 

[173abn]

I've read from many folks that starting fluid is not a good thing for diesels.could be wrong but I would'nt do it.I would almost bet the 721d has a glow plug to start it in cold weather otherwise Grasshopper would'nt make snowthrowers for them if they could'nt be started in cold weather.if anything,he could use a block heater on it...russ

 

[reynoldston]

I've read from many folks that starting fluid is not a good thing for diesels.could be wrong but I would'nt do it.I would almost bet the 721d has a glow plug to start it in cold weather otherwise Grasshopper would'nt make snowthrowers for them if they could'nt be started in cold weather.if anything,he could use a block heater on it...russ

OK just what is the reason you are saying this? What is bad?

 

[173abn]

heres how I understand it,spraying ether starting fluid dries out the cylinder walls.if you just got to use it use ether w/an upper end lubricant.should say it on the can or a squirt of wd-40....russ

 

[reynoldston]

heres how I understand it,spraying ether starting fluid dries out the cylinder walls.if you just got to use it use ether w/an upper end lubricant.should say it on the can or a squirt of wd-40....russ

You are thinking back in years pass. Yes that was a problem in the earlier years but since then they have added a additive in the starter fluid to prevent that problem. Another thing all it takes is a small pass by the air cleaner to work. In all the years of working in the repair trade I have never came across damage caused by starter fluid. I really don't know if the PO has glow plugs on his diesel or not, but if he dose I do agree he should get them working. I also recall when I was working on diesels the glow plugs and the relay that operated them were big money to replace.

 

[reynoldston]

Dumb brainfart-type question, but does the 721D diesel engine utilize "traditional" glow plugs to start? I wonder because I cannot see a 120v grounded plug to pre-heat them, like I used to have on my diesel truck. If this mower does use glowplugs then it may be time to get new ones... I tried to start it a week ago when it was really cold and got nothing. Everything else was good to go but she wouldn't start. That makes this tractor worhtless to me as is, since I intend to be ready to throw some snow if we get another winter like last year.

Thanks.
JN

After reading this post I will say this person has no idea what he is doing. There is much more to the glow plug system then just the glow plugs. I will say take it to someone who knows how to test the system because its just too expensive to start replacing parts. Also remember no returns on electrical parts.

 

[173abn]

I stand corrected on the starter fluid issue but I did say use the one w/the lubricant.I think he should turn his key to the left,opposite the way to start to see if that activates the glow plugs...russ