Another HPO change thread
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Logistics Pro
Joined: Oct 2008
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From: Avilla, IN
Another HPO change thread
Ok lets skip the debate of whether or not HPO needs changed along with the regular engine oil. We all know the hard process of removing the plug on the HPOP, syphoning the oil out and refilling.
I would like to introduce an idea that I haven't read on this forum yet and get your thoughts.
A UPS mechanic told me that on their trucks they drain the oil out of the pan, leave the plug out, and start the truck and let it run until it dies (HPOP empties its resevoir, and injectors do not inject). Then change filter, refill with oil, and crank it until it starts.
Supposedly, the engine will die before any damage is done. What do you guys think, worth trying?
I would like to introduce an idea that I haven't read on this forum yet and get your thoughts.
A UPS mechanic told me that on their trucks they drain the oil out of the pan, leave the plug out, and start the truck and let it run until it dies (HPOP empties its resevoir, and injectors do not inject). Then change filter, refill with oil, and crank it until it starts.
Supposedly, the engine will die before any damage is done. What do you guys think, worth trying?
Posting Guru
Joined: Aug 2007
Posts: 1,601
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From: Cato Arkansas
i use to have a buddy that when he changed his oil he would start his gasser for a few seconds with the drain plug out and filter off just to make sure all the oil was out i thought it was so stupid
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Hotshot
Joined: Dec 2006
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From: Melbourne, Ky
Metal to metal is not a good thing unless you're using a grinder. I will say this; I went to an antique farm machinery show where there was a both set up selling an engine treatment product. I don't remember the product, but they had a 225 slant-6 sitting there running with the oil pan removed. He said every once in a while he would bolt the pan back on and treat the engine again, then remove the pan for the next show.
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Hotshot
Joined: Oct 2003
Posts: 17,799
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From: Ashland City, TN
i would pull my coil cable on the gasser and crank with plug out and filter on. no start means it wont be rough on motor, just turning over a few times. then same thing to prime before start.
i wouldnt do this on a diesel.
any sorta heat on that slant 6 would kill it. it didnt have to work, so of course it could just idle.
i wouldnt do this on a diesel.
any sorta heat on that slant 6 would kill it. it didnt have to work, so of course it could just idle.
Postmaster
Joined: Jun 2007
Posts: 2,795
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From: Rogue River, OR
I have seen those commercials in the distant pass and to say the least....they were impressive. The engine RPM would be raised to several thousand without an oil pan and that engine ran like all hell. Always figured it was some type of a gimmick.... 
I would never try this on any engine of mine.
Rog
I would never try this on any engine of mine.
Rog
Hotshot
Joined: Oct 2003
Posts: 17,799
Likes: 104
From: Ashland City, TN
Think about it.
If there is oil on the parts, where is it going to go if it does not burn off?
As long as there is lubrication and no stress, the parts will remain lubricated till it is burned off.
That's why heat is so bad for motors, makes the oil break down and not work.
Draining the HPO woudln't be a bad thing if the injectors were not oil fired.
If anything on the HPO, suck it out. Don't bother turning it over and running it.
Remember, higher compression on a diesel, not like a gas engine, just the impact of firing on a diesel is a lot of stress.
If there is oil on the parts, where is it going to go if it does not burn off?
As long as there is lubrication and no stress, the parts will remain lubricated till it is burned off.
That's why heat is so bad for motors, makes the oil break down and not work.
Draining the HPO woudln't be a bad thing if the injectors were not oil fired.
If anything on the HPO, suck it out. Don't bother turning it over and running it.
Remember, higher compression on a diesel, not like a gas engine, just the impact of firing on a diesel is a lot of stress.
Hotshot
Joined: Oct 2003
Posts: 17,799
Likes: 104
From: Ashland City, TN
Think about it.
If there is oil on the parts, where is it going to go if it does not burn off?
As long as there is lubrication and no stress, the parts will remain lubricated till it is burned off.
That's why heat is so bad for motors, makes the oil break down and not work.
Draining the HPO woudln't be a bad thing if the injectors were not oil fired.
If anything on the HPO, suck it out. Don't bother turning it over and running it.
Remember, higher compression on a diesel, not like a gas engine, just the impact of firing on a diesel is a lot of stress.
If there is oil on the parts, where is it going to go if it does not burn off?
As long as there is lubrication and no stress, the parts will remain lubricated till it is burned off.
That's why heat is so bad for motors, makes the oil break down and not work.
Draining the HPO woudln't be a bad thing if the injectors were not oil fired.
If anything on the HPO, suck it out. Don't bother turning it over and running it.
Remember, higher compression on a diesel, not like a gas engine, just the impact of firing on a diesel is a lot of stress.
Tuned
Joined: Feb 2005
Posts: 380
Likes: 1
From: ohio
Nothing but real bad info there my friend, just change your oil like always and enjoy.
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