Can i test run engine without up/down pipe?
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Cross-Country
Joined: Jan 2016
Posts: 57
Likes: 12
Can i test run engine without up/down pipe?
I want to test fire my engine to watch oil come out of my injectors before buttoning everything up. It would be easier to just run it a couple minutes at idle without the up and down pipes installed.
Is that ok?
Is that ok?
Fleet Owner
Joined: Jun 2004
Posts: 25,090
Likes: 1,112
From: Rio Rico, AZ.
You can run a diesel engine without intake or exhaust manifolds if you want to. Their basic design is 100% air all of the time and only inject enough fuel to get the job done for whatever load requests are made to the injection system. Way different than a gas engine that chokes down the intake to a vacuum and meters out the fuel/air ratio to the engine in measured amounts according to demand.
Cargo Master
Joined: Mar 2019
Posts: 2,907
Likes: 788
From: Kinnula,Finland
It just will be loud.
You do have turbo in place?
Otherwise it will shoot oil from turbo pressure line!
You do have turbo in place?
Otherwise it will shoot oil from turbo pressure line!
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Cross-Country
Joined: Jan 2016
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No just the up/down pipes off.
And the tiny red/grn enironmental? lines. Goes to waste gate solenoid?
And the tiny red/grn enironmental? lines. Goes to waste gate solenoid?
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Cargo Master
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Cross-Country
Joined: Jan 2016
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Suck up things? Like the plastic baggies i forgot to remove? Lol. I caught it in time.
Im in Az and you have to protect against fine grit that blows around. But It wasn’t really that noisy. Kinda more like normal.
Anyway they all spit oil except one. #5. This alarmed me. My old friend anxiety came to visit until i noticed #5 connector slipped loose.
Which brings up my next questions.
those connections under the valve cover seem awful loose for a vibrating motor.
Q: is there some way to pinch those little metal locking arms so they grip better?
Im in Az and you have to protect against fine grit that blows around. But It wasn’t really that noisy. Kinda more like normal.
Anyway they all spit oil except one. #5. This alarmed me. My old friend anxiety came to visit until i noticed #5 connector slipped loose.
Which brings up my next questions.
those connections under the valve cover seem awful loose for a vibrating motor.
Q: is there some way to pinch those little metal locking arms so they grip better?
Lead Driver
Joined: Aug 2022
Posts: 5,065
Likes: 1,415
From: Oologah, OK
I have used medium sized Needle Nose pliers to lightly crimp the slip over connectors, so that they grip the spade lugs tighter.
be easy though, you can get them too tight, and make them useless.
be easy though, you can get them too tight, and make them useless.