Mf 30 injector pump rebuild

   / Mf 30 injector pump rebuild #11  
OR.. the engine could run away.. dont forget about THAT ONE.l

I had that once.

We had rebuilt an old truck in diesel tech class, and decided to get it going. We had exhaust venting over the stack, but still...it had not been run in awhile. Well to make a long story short, we fired it up, but had a runaway. The engine was just pumping the smoke, overwhelming the ventilation system, and just pumping smoke throughout the school. Of course, that night was graduation, and you could not see from one side of the room to the other, much less the gym!

The principal came out and was yelling for us to shut the engine down, and the teacher was trying. But the thing was, just as the engine was lugging down and about to stop, my friend Steve would take the rubber mud flap off the air intake at the same time I would flick the throttle control...vrooooommmmmmmmmm it would roar back to life and of course increase the thick smoke ten fold. We did that about 5 times before the teacher caught on to what Steve and I were doing.

We came to school on Monday (3 days later) and you could still smell the diesel exhaust.

To this day, Steve and I still laugh about our "runaway" engine!
 
   / Mf 30 injector pump rebuild #12  
I had that once.

We had rebuilt an old truck in diesel tech class, and decided to get it going. We had exhaust venting over the stack, but still...it had not been run in awhile. Well to make a long story short, we fired it up, but had a runaway. The engine was just pumping the smoke, overwhelming the ventilation system, and just pumping smoke throughout the school. Of course, that night was graduation, and you could not see from one side of the room to the other, much less the gym!

The principal came out and was yelling for us to shut the engine down, and the teacher was trying. But the thing was, just as the engine was lugging down and about to stop, my friend Steve would take the rubber mud flap off the air intake at the same time I would flick the throttle control...vrooooommmmmmmmmm it would roar back to life and of course increase the thick smoke ten fold. We did that about 5 times before the teacher caught on to what Steve and I were doing.

We came to school on Monday (3 days later) and you could still smell the diesel exhaust.

To this day, Steve and I still laugh about our "runaway" engine!

LOL! Had a similar experience in fuel injection class. A 671 Detroit took off after the rack was misadjusted. One of the students got it shut down with the emergency stop, but not until the lab had filled with smoke. Most of of the students ran away! Afterwards a couple of the students commented to the instructor about the run away and he dead panned "I just saw a bunch of runaway students!"
 
   / Mf 30 injector pump rebuild #13  
LOL! Had a similar experience in fuel injection class. A 671 Detroit took off after the rack was misadjusted. One of the students got it shut down with the emergency stop, but not until the lab had filled with smoke. Most of of the students ran away! Afterwards a couple of the students commented to the instructor about the run away and he dead panned "I just saw a bunch of runaway students!"

The old Caterpillar's used to have oil-bath air filters, and on an adverse grade, sometimes they would suck in some oil and have a diesel engine run-away on the operator: not Caterpillar's greatest design feature that is for sure.

I just always keep something handy to shove over the air intake when I start a diesel that has been rebuilt. It is a pretty simple concept: a diesel engine needs fuel and air, and if you rob it of one or the other, she will shut down.

Of course it does not help when Steve gives her a snuff of air every now and then! (LOL)
 
   / Mf 30 injector pump rebuild #14  
OR.. the engine could run away.. dont forget about THAT ONE..
Yes the 7135-110 is the kit you'll need.. & a slew of "other" parts, as long as u have it apart..
I charge extra when a customer "helps".. cuz theres NO TELLIN what they've done..
It takes extra time & care trying to figure it out.. which = more $..
I had 1 fella who bought all sorts of parts they sell as a kit, online.. & not 1 of'm were for his pump..
Good thing, cuz he didnt need any of'm.. lol

I had my local Garage "help" me by taking out the pump, I was afraid of messing up the timing. They galled up the drive gear threads, amazing what a gorilla & a hammer can do. But you were more than fair in fixing them, and when I got it back the nut threaded right back on & the trucks been running like a champ over since, no issues. I learned my lesson.
 

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