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Author Topic: What is the best diesel injector cleaner.  (Read 5457 times)

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Offline Kbeitz

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What is the best diesel injector cleaner.
« on: November 26, 2017, 06:56:47 PM »
What do you use and like? What works and donít?
I️ have a kubota engine giving me fits.
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Offline dgdrls

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Re: What is the best diesel injector cleaner.
« Reply #1 on: November 26, 2017, 07:53:30 PM »
I like the Opti-lube products,  I have an 80's vintage JD 650 with a Yanmar 2 popper

Or Stanadyne

Whats up with the Kubota?

D

Offline jwade

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Re: What is the best diesel injector cleaner.
« Reply #2 on: November 26, 2017, 08:10:43 PM »
i have always used stabil in my truck and tractors. hope this helps.

Offline Kbeitz

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Re: What is the best diesel injector cleaner.
« Reply #3 on: November 26, 2017, 08:28:06 PM »
I like the Opti-lube products,  I have an 80's vintage JD 650 with a Yanmar 2 popper

Or Stanadyne

Whats up with the Kubota?

D

First time ever with an engine problem with any of my Kubotas.
After running it hard all week when first starting it up the 3 cly will
only run on two clys. The smoke just pours out. The only way I
can get the third cly to pick up is to make it work hard. Once it
picks up the third cly I have no problems until I shut it down and
restart it. I finished all the work I need to do with it so now I got
to get my problem fixed. I know next to nothing about diesel engines
but I'm guessing that I have an injector sticking. I hope that's all
that's wrong with it.
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Offline dgdrls

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Re: What is the best diesel injector cleaner.
« Reply #4 on: November 26, 2017, 08:52:21 PM »
seems like a good place to start,   black smoke is too much fuel,  im guessing this is an older all mechanical engine???

D

Offline North River Energy

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Re: What is the best diesel injector cleaner.
« Reply #5 on: November 26, 2017, 10:33:19 PM »
Maybe run some atf through it?

Offline barbender

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Re: What is the best diesel injector cleaner.
« Reply #6 on: November 26, 2017, 10:33:32 PM »
If it is smoking white/blue and smells like raw fuel, that would point towards an injector stuck open. On a mechanically injected engine, it's probably pretty simple to pull the injector and inspect it. I have an injector I suspect is hanging up a bit on my 03 Dodge Cummins, it's a lot more complicated to get those injectors out. Mine was smoking a lot On start up and while idling, and also when driving around at low speed. It ran fine other than the smoke. I ran Power Service Diesel Kleen (it's the gray bottle) at a strong dose and that definitely helped. I need to load the filter with it and idle for a few minutes, and let it soak the injectors. If it was a mechanical injector, I would've just pulled it out and looked at it already.
Too many irons in the fire

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Re: What is the best diesel injector cleaner.
« Reply #7 on: November 26, 2017, 10:37:49 PM »
I run Sea Foam in everything both diesel and gas.
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Offline barbender

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Re: What is the best diesel injector cleaner.
« Reply #8 on: November 26, 2017, 10:40:30 PM »
Also, as far as I understand (I'm no diesel expert) black smoke is from over fueling, injecting more fuel than a cylinder can burn, but everything else is in order (lugging a diesel will usually cause black smoke). White smoke comes from the injectors letting fuel into the cylinder other than when they are timed to fire by the injection pump. On newer common rail engines like my 5.9 Cummins, if an injector sticks it can leak fuel into the cylinder constantly because the injector always has pressure to it. On a mechanical engine,  the injectors only get fuel when the injection pump pulses pressure to it.
Too many irons in the fire

Offline barbender

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Re: What is the best diesel injector cleaner.
« Reply #9 on: November 26, 2017, 10:41:27 PM »
I was going to use some Sea Foam, but I read that it contains alcohol.
Too many irons in the fire

Offline BLink

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Re: What is the best diesel injector cleaner.
« Reply #10 on: November 26, 2017, 10:52:15 PM »
I would first crack the line loose while running. If there is any air in the system it won't run right.

After I changed the filters ,I have disconnected the fuel supply and return lines and poked them into the bottle of injector cleaner and let it run for 30 minutes while keeping an eye on it. I put it back together and it cleaned them very well!
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Online Corley5

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Re: What is the best diesel injector cleaner.
« Reply #11 on: November 26, 2017, 10:52:39 PM »
  Only issue I ever had was with an H Farmall.  I added some and it took several sediment bowl cleanings to get the crud that it loosened up in the gas tank ;) 8) ;D
  A lot of guys run it in diesels around here.  Car Quest in Indian River is one of the largest volume dealers in Michigan. 
Burnt Gunpowder is the Smell Of Freedom

Offline james

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Re: What is the best diesel injector cleaner.
« Reply #12 on: November 26, 2017, 11:08:12 PM »
also check that you dont have a airlock forming in the line to the injector a air bubble can cause strange behavior
james

Offline Kbeitz

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Re: What is the best diesel injector cleaner.
« Reply #13 on: November 27, 2017, 01:13:14 AM »
seems like a good place to start,   black smoke is too much fuel,  im guessing this is an older all mechanical engine???

D

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Offline coxy

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Re: What is the best diesel injector cleaner.
« Reply #14 on: November 27, 2017, 06:23:02 AM »
check air filter  I always pull them out then start it to see if it clears up    as far as injector cleaner I use atf  or 2cycle oil in the fuel

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Re: What is the best diesel injector cleaner.
« Reply #16 on: November 27, 2017, 10:06:05 AM »
Might sound crude but use the old screw driver to the ear method on each injector, if it is in fact the injector it will sound distinctly different than the other 2.

Offline Kbeitz

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Re: What is the best diesel injector cleaner.
« Reply #17 on: November 27, 2017, 10:21:03 AM »
Might sound crude but use the old screw driver to the ear method on each injector, if it is in fact the injector it will sound distinctly different than the other 2.

Thanks... i'll try that...
Simple...Easy...
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Offline 21incher

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Re: What is the best diesel injector cleaner.
« Reply #18 on: November 27, 2017, 12:59:54 PM »
On my little Deere with a Yammar I had the glow plug timmer stick on and burn up the glow plugs. It would start fine when it was warm out, but when it turned colder it became hard to start, blew black smoke and ran rough for the first couple minutes. New glow plugs and a manual switch controlled relay fixed it. Have you checked the glow plugs?  :)
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Offline Kbeitz

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Re: What is the best diesel injector cleaner.
« Reply #19 on: November 27, 2017, 01:28:19 PM »
On my little Deere with a Yammar I had the glow plug timmer stick on and burn up the glow plugs. It would start fine when it was warm out, but when it turned colder it became hard to start, blew black smoke and ran rough for the first couple minutes. New glow plugs and a manual switch controlled relay fixed it. Have you checked the glow plugs?  :)

My glow plugs only come on when I turn my key start switch backwards.
On my dash is another glow plug that you can see turn red.
Then you know its ready to start.
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