Lets talk about "Ether"....
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Hotshot
Joined: Aug 2006
Posts: 10,764
Likes: 39
Lets talk about "Ether"....
I think the 7.3 can handle it if it is spayed while the engine is turning over given the engine is designed to handle 400 lbs compression & 20-30 lbs of boost . Especially since ether has so little octane . I understand the concern of the GP's being on .
I'm thinking worse case , air filter intake fire if the key is on while the ether is sprayed ...(intake valve open ) exhaust valve open should be no concern. The engine cannot run backwards (or try) if the valves are open .
Thoughts ?....
Does anyone have any personal experience of actual damage to the engine ?
I'm thinking worse case , air filter intake fire if the key is on while the ether is sprayed ...(intake valve open ) exhaust valve open should be no concern. The engine cannot run backwards (or try) if the valves are open .
Thoughts ?....
Does anyone have any personal experience of actual damage to the engine ?
Lead Driver
Joined: Oct 2010
Posts: 5,132
Likes: 45
From: Columbus, Oh
Back before I had learned what little knowledge I've gained about these trucks, I used ether to get it to fire a couple times. The last time I ever used it I got the dreaded sonic boom out of the intake. No damage to report. All compression came back at 380-400 psi and the truck runs great.
Post Fiend
Joined: Dec 2009
Posts: 15,505
Likes: 18
From: Livoina,La
I personally don't think ether can destroy a 7.3 unless you go crazy spraying it. Now I do think any diesel can get addicted to ether if constantly used.
I blew up the intake box on mine several years ago. After that I used gas on a rag laying over the air filter. And when I had bad GP's I just pulled the air filter and put the wife blow dryer in the intake for a few mins and it fire rite up.
I blew up the intake box on mine several years ago. After that I used gas on a rag laying over the air filter. And when I had bad GP's I just pulled the air filter and put the wife blow dryer in the intake for a few mins and it fire rite up.
Hotshot
Joined: Oct 2003
Posts: 17,799
Likes: 103
From: Ashland City, TN
I only advise against it because of the glow plugs. I don't see any issues otherwise.
I think doing it while its cranking is the best idea as you are saying though.
In moderation of course.
I think doing it while its cranking is the best idea as you are saying though.
In moderation of course.
Hotshot
Joined: Oct 2003
Posts: 17,799
Likes: 103
From: Ashland City, TN
I personally don't think ether can destroy a 7.3 unless you go crazy spraying it. Now I do think any diesel can get addicted to ether if constantly used.
I blew up the intake box on mine several years ago. After that I used gas on a rag laying over the air filter. And when I had bad GP's I just pulled the air filter and put the wife blow dryer in the intake for a few mins and it fire rite up.
I blew up the intake box on mine several years ago. After that I used gas on a rag laying over the air filter. And when I had bad GP's I just pulled the air filter and put the wife blow dryer in the intake for a few mins and it fire rite up.
Lead Driver
Joined: Oct 2010
Posts: 5,132
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From: Columbus, Oh
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Post Fiend
Joined: Dec 2009
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From: Livoina,La
I'm not sure but the shop I wirked at in high school had a Detroit 671 that went two years with our the intake heater and constantly had ether shot in it and after they finally fix the heaters we still had to hit it with ether
Post Fiend
Joined: Dec 2009
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From: Livoina,La
The last time I did injectors in mine I hydro locked the pi$$ out of it and all was good after clear the cylinders (again I missed #7)
Hotshot
Joined: Jan 2012
Posts: 11,132
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From: Southern West Virginia
I've only used ether on a PSD one time, but it was very sparingly, and on an engine that we weren't sure was all that good anyway, and there was no damage. On the other hand, the red/black '97 I bought, the stock air box looked like a grenade went off in it. The guy I bought the truck from said after the trans went out and they parked it, it had sat for a while and his brother-in-law was trying to get it started with ether and apparently used quite a bit of it, cause it blew that air box all to he!! LOL!!
Post Fiend
Joined: Dec 2009
Posts: 15,505
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From: Livoina,La
I also think that if you spray ether with key off then try to start the engine will burn of the ether before the GP get hot enough to lite the ether. If you ever test a GP with a pair if jumper cables you'll notice it take a couple seconds for it to get hot.
Thread Starter
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Hotshot
Joined: Aug 2006
Posts: 10,764
Likes: 39
I personally don't think ether can destroy a 7.3 unless you go crazy spraying it. Now I do think any diesel can get addicted to ether if constantly used.
I blew up the intake box on mine several years ago. After that I used gas on a rag laying over the air filter. And when I had bad GP's I just pulled the air filter and put the wife blow dryer in the intake for a few mins and it fire rite up.
I blew up the intake box on mine several years ago. After that I used gas on a rag laying over the air filter. And when I had bad GP's I just pulled the air filter and put the wife blow dryer in the intake for a few mins and it fire rite up.
