I'm getting a 782D

[olds45512]

Originally Posted by J-Mech

Oh, yes they will. If you use enough. Done it.

Really? Any time I've ever used ether to start a diesel I've found that if you use just a bit to much it hydro locks the engine.

[red56turbo]

Depends on the engine and situation with the ether. Also depends on the procedure. Alot of tractors came from the factory with ether inducers built in for that super cold start. Sometimes the block heater/tank heater wasn't enough. On the 806 or 1206 that needed a little help when cold, we'd get the engine turning over, then hit the ether button for a very short time. It would pull in the ether evenly so to speak. I cringe when I see these guys hop on a tractor. Push the ether button for 20-30 seconds, then hit the starter. Poor tractor. A little goes a long way. We usually would plug the tractor in hours before we needed it and it would start without anything. Never use ether in glow plug tractors.

Todd,
Thanks for the picture clarification.

Jonathon,
Thanks for the info about the early versus late 782D changeover.

[red56turbo]

Originally Posted by olds45512

Really? Any time I've ever used ether to start a diesel I've found that if you use just a bit to much it hydro locks the engine.

Ether is very volatile. A little goes a long way. Once a tractor is started, if you keep spraying ether at the air intake, air cleaner, they will keep running on the ether alone. Not very well and not good for an engine, but it will run. I, too have seen it.

[J-Mech]

Originally Posted by olds45512

Really? Any time I've ever used ether to start a diesel I've found that if you use just a bit to much it hydro locks the engine.

It doesn't "hydro lock", ether ignites way early (like advance timing) ignites way before piston hits TDC, so it actually works in reverse. Fires off, then pushes against the starter. (This usually only happens when you get too much in the engine.)


And yes, I have seen them blow to pieces with too much also. I wish I had some pics, but it was in the days before cell phones with cameras. Hell, it was before everyone had cell phones, LOL. I used to have what was left of a piston and a rod that I had to cut out of the motor with a torch. What it did to that rod was the coolest thing I ever saw. Twisted the wrist-pin end 90°, then bent the rod in a "U" and wedged it in the top of the block. But didn't break the rod.

[Shaner]

i have to use a spritz of ether to start my GMC with the 6.2 diesel in it. even in 90 degrees she needs ether. i spray it in the air cleaner tube that runs to the passenger side of the grill. by the time it reaches the engine the solution is just enough to start it, but weak enough not to make it knock and bang.

[EarlJ]

Ether will also cause the engine to fire backwards. Resulting in the engine running backwards which is incredibly detrimental. Had that happen on the 3208 cat, which is why we went to spritzing diesel in it. I wasn't saying you don't know what you are doing j-mech. I'm just telling you what we have done over the years. We all know that sometimes what is not supposed to work will work..

[J-Mech]

Originally Posted by EarlJ

Ether will also cause the engine to fire backwards. Resulting in the engine running backwards which is incredibly detrimental. Had that happen on the 3208 cat, which is why we went to spritzing diesel in it. I wasn't saying you don't know what you are doing j-mech. I'm just telling you what we have done over the years. We all know that sometimes what is not supposed to work will work..

Only some diesel engines will run backwards. The early 3208's would. So would a Mack, and a Detroit. Most won't. It has to do with the grind on the cam in the injection pump.

[EarlJ]

The one we had was a late 80's or early 90's and she would run backwards in a heartbeat. If you used a smidgen too much ether or choked it down by lugging it. It was in a Ford 9000 mobile home toter so that happened often in the sand hills of SC or if we were in heavy mud. Shut it down wait 20 minutes and give her a go again. Usually though the weight of it sitting fallow would cause it to be stuck even more. We had a 400 Cummins from the early 80's that wasn't near as bad but would do the same thing.