440icd smoking

Paul Koski · Post by **Paul Koski** » Thu Feb 20, 2014 4:48 pm

I have been reading old posts about the 2-53 Detroit engine and have come to the conclusion that they do not fire quite correctly upon start up and emit white smoke for a period of time.
Yesterday I started my crawler since the weather was so warm. It took a few shots of ether to get running, but then sounded like it was running on one cylinder for a long period of time. Needless to say copius amounts of white smoke (unburnt fuel) came from the stack. It took a long time to warm up and finally start running correctly.
My question is. Is there an additive to put in the fuel or a tuneup to clean the injectors or an adjustment that can be made to clear this up, anything short of a major overhaul?
Also I have heard a lot of comments about low oil pressure once the engine warms up. How low can the engine tolerate this without damage.
I am using Rottella 15W40. I rarely use the dozer in the winter but wanted to exercise the clutches to prevent rust buildup.

Thanks in advance.

DukeofDeere · Post by **DukeofDeere** » Thu Feb 20, 2014 8:22 pm

Sea Foam works well to clear up carbon deposits in most machines.
A while back I had done some research into what oil to use in the Detroit diesels.
Have the info posted here somewhere.
I will check and get back soon.

Duke

shinnery · Post by **shinnery** » Fri Feb 21, 2014 12:50 am

I am fairly positive Detroit specified a "low ash" oil for the two stroke diesels. I am using Delo 100, not Delo 400, and here in west Texas I found it in 40W so that is what I am using.
Bryce

gregjo1948 · Post by **gregjo1948** » Fri Feb 21, 2014 6:48 am

A single weight oil will probably give you better pressure and won't burn off as quickly. If you're holding 5 lbs at idle rpms, you should be ok. Once it starts up and is running on one cylinder, a very light whiff of starting juice should fire the other cylinder temperarilly until it burns up the juice. I've had good luck with Lucas addative. gregjo1948

Post by **Lavoy** » Fri Feb 21, 2014 8:28 am

I spent quite a bit of time looking into the oil issue a while back, and ALL the evidence I could come up with is you run a low ash straight weight oil such as Delo 100 in a two stroke Detroit and nothing else. While I don't dispute that for most of us, it is unlikely to cause problems in the hours that we run them, why run the risk. I personally know one person who ran a multi-weight in a truck, and it cost him a rebuild.
Lavoy

whiteclipse16 · Post by **whiteclipse16** » Fri Feb 21, 2014 11:01 am

I personally don't think any additives or anything will help much. It's just the nature of the beast.
I have brand new injectors, and all new fuel lines and mine does the same thing. An in-frame engine rebuild will help, but you're still going to get a little smoke on start-up.
Another guy on here did a total rebuild, everything new and I think he still got some white smoke and missing on one cylinder on starts.
Good Luck

Post by **Lavoy** » Fri Feb 21, 2014 4:26 pm

N series pistons and injectors will likely be better as well, but I agree, there is nothing that will significantly clean a diesel injector. You are dealing in several thousand PSI depending on injector, if the pattern is bad, the injector is worn.
Lavoy

johndeere4402-53 · Post by **johndeere4402-53** » Sat Mar 08, 2014 10:05 pm

The 2 cycle diesel there goin go smoke
ours 440 it waas about 45 degrees out
http://youtu.be/amTE2F08MEY

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