[AT] Smoking Diesels

[charlie hill]

I think this is the correct thread at AllisChalmers.com. 
http://allischalmers.com/forum/forum_posts.asp?TID=62047&KW=7060+pump+advance&title=7050-engine-question

you can read it without registering.  If you want to reply or ask questions 
you'll need to register and log in but it's free.

Charlie

-----Original Message----- 
From: Bruce Fallon
Sent: Sunday, January 20, 2013 11:30 AM
To: 'Antique tractor email discussion group'
Subject: [AT] Smoking Diesels

My Isuzu diesel a 86 NPR BD1T  smoked really bad for the previous owner and
myself with no load. Blue smoke like it was cold. The previous owner said it
never got warm. Under load it was not bad but loafing or cruising with
minimal load just a constant cloud. You either had to be on the throttle or
off unless you wanted a cloud following you.   I could tell it was unburned
fuel.  Had the injectors rebuilt no help. Finally blew the turbo and decided
to tear it down, had a broken ring on number 4.  New rings, new turbo, when
it went back together no change. Took it to Harris Ford Isuzu in Lynnwood
what a joke. They told me the injectors were bad after just having them
rebuilt by a real diesel shop, the timing was off and they adjusted it. No
change whatsoever. When I got home looked and they never had a wrench on the
pump bolts. When I asked them how they set the timing without touching the
pump now the story was "Oh the timing was fine".  I finally decided it had
to be timing. I or the previous owner had not had the pump off. I took the
pump loose and turned it like advancing a distributor. Advanced it all I
could.  What a change.  I still need to take the pump off someday and
actually make sure it is correctly timed.  My guess is somewhere in its
lifetime someone had the pump off and put it back 1 tooth off the mark.
Timing was so late the fuel did not have time to burn.

Bruce Fallon
Langley, WA 98260

-----Original Message-----
From: at-bounces at lists.antique-tractor.com
[mailto:at-bounces at lists.antique-tractor.com] On Behalf Of Cecil R Bearden
Sent: Saturday, January 19, 2013 8:56 PM
To: Antique tractor email discussion group
Subject: Re: [AT] Question on Massey 255

I have a 7030 Allis that will smoke so bad when running that you can see
the smoke plume 5 miles on a clear day.   It has done that since it was
new.   It was owned by a farmer that used to live 1/2 mile from me.  I
bought the tractor from the 3rd owner , a trader, and my Dad drove it
back home about 12 miles.  I made a stop at the post office in the
little town where we bought it, then headed back to follow Dad.  When I
got back on the main road, he was over 5 miles away and I saw the smoke
plume.  it was then I knew where that tractor had come from!!!   I never
have loaded it to its maximum....

Cecil in OKla


On 1/19/2013 10:37 PM, Ralph Goff wrote:
> On 1/19/2013 10:01 PM, Mike Meulenberg wrote:
>> I have a Massey 255 with a Perkins 4 cylinder diesel engine. The problem
I'm having is it never seems to warm up. I don't think its ever been in the
green "operating" range since I've owned it; I'm thinking the thermostat
might be stuck open, but was hoping to hear from others before I tear into
it. It is quite smokey also, which I would take for a symptom of running
cold. Any thoughts.
>> Thanks,
>> Mike M
>> _____
> I would suspect the thermostat. My Super 90 with the Perkins 270 diesel
> warms up even in this cold Sask. winter as long as I have the grille
> completely covered and drive it a little while. Seems like all diesels
> have different "smoke habits". My Massey hardly smokes at all even on a
> cold winter start. It will smoke some black if I work it hard. Some of
> my other diesels will almost smoke me out of the shed on a cold start.
>
> Ralph in Sask.
>
> _______________________________________________
> AT mailing list
> http://www.antique-tractor.com/mailman/listinfo/at

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