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Author Topic: Caterpillar 3116 Mechanical Injection  (Read 3138 times)

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fabr

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Caterpillar 3116 Mechanical Injection
« on: August 20, 2013, 09:40:13 PM »
Always something new to me even if it is 20 years old. Anyone have any comments on this engine? I have a few(several  Sarcasm ) but was wondering if anyone else might to start with. Takes a lot of digging to get good info .
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Dunebound69

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Re: Caterpillar 3116 Mechanical Injection
« Reply #1 on: August 21, 2013, 05:45:28 PM »
I know they require being removed from the frame for an overhaul as they are not a sleeved block. And as you know they are no power house. This pretty much the sum of my info on that motor.
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fabr

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Re: Caterpillar 3116 Mechanical Injection
« Reply #2 on: August 21, 2013, 08:52:16 PM »
  I know the Cat tooling needed to synchronize the injectors is over $3K  and I scored a set for 500 bux.This is the only engine this tooling is used on to set the injectors.  Not a lot of the tooling around.
  The 3116 came in 170-215 HP versions in trucks and 250 HP in motorhomes. The main difference in the engine itself with the 250 and up HP is the 2 piece piston used on the higher HP versions that are in all marine varieties . That can be bumped to 300 and somewhere around 700+ torque @ 1500 rpm.  Anyway ,long story short I will be bumping this 215 HP engine to around 250 in the next few days. If that isn't enough though I can always do the piston swap..................................
  No , they are not powerhouses but they are pretty stingy on fuel. I get better mileage with it than the dually,with same trailer.About 2 mpg better.
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"There can be no divided allegiance here.  Any man who says he is an American,
but something else also, isn't an American at all.  We have room for but one
flag, the American flag... We have room for but one language here, and that is
the English language... and we have room for but one sole loyalty and that is a
loyalty to the American people."
Theodore Roosevelt 1907

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"I fear the day that technology will surpass our human interaction. The world will have a generation of idiots" Albert Einstein

fastcorvairs

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Re: Caterpillar 3116 Mechanical Injection
« Reply #3 on: August 22, 2013, 05:29:24 AM »
  I know the Cat tooling needed to synchronize the injectors is over $3K  and I scored a set for 500 bux.This is the only engine this tooling is used on to set the injectors.  Not a lot of the tooling around.
  The 3116 came in 170-215 HP versions in trucks and 250 HP in motorhomes. The main difference in the engine itself with the 250 and up HP is the 2 piece piston used on the higher HP versions that are in all marine varieties . That can be bumped to 300 and somewhere around 700+ torque @ 1500 rpm.  Anyway ,long story short I will be bumping this 215 HP engine to around 250 in the next few days. If that isn't enough though I can always do the piston swap..................................
  No , they are not powerhouses but they are pretty stingy on fuel. I get better mileage with it than the dually,with same trailer.About 2 mpg better.

Din Din Saturday night at 6PM to set rout and plan for Idaho.  Not to worry Master.  You can run with Mitch and his wife.  His moho is governed to 60MPH and slow's down on the hill's.  rofl Were going to Idaho so all's good. 
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Carlriddle

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Re: Caterpillar 3116 Mechanical Injection
« Reply #4 on: August 22, 2013, 05:33:49 AM »
quote Masterfabr: You guys are FOS too!!!! LOL!!!! JUST BUY A NEW DURAMAX AND THERE'S NOTHING ELSE NEEDED. Simple.   
 rofl rofl rofl rofl rofl  Had too.  ;D

So for the increase, you up fuel pressure or injector siz?  High dollar equipment is  like a programmer.   
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fabr

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Re: Caterpillar 3116 Mechanical Injection
« Reply #5 on: August 22, 2013, 05:54:21 AM »
There is noprogrammer to be had. This is a mechanical diesel. No electronics. I may not make Idaho ,Glenn. My DOL is supposed to have my first grandson delivered on the5th. Was supposed to be after we get back. Kid doesn't want to wait.
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"There can be no divided allegiance here.  Any man who says he is an American,
but something else also, isn't an American at all.  We have room for but one
flag, the American flag... We have room for but one language here, and that is
the English language... and we have room for but one sole loyalty and that is a
loyalty to the American people."
Theodore Roosevelt 1907

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"I fear the day that technology will surpass our human interaction. The world will have a generation of idiots" Albert Einstein

fabr

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Re: Caterpillar 3116 Mechanical Injection
« Reply #6 on: August 22, 2013, 05:58:36 AM »
Carl,there were no dmax's in 1994. Even if they had it would not have been as powerful as the lowly 3116. The first ones in the latter 90's had less torque than the cat.
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"There can be no divided allegiance here.  Any man who says he is an American,
but something else also, isn't an American at all.  We have room for but one
flag, the American flag... We have room for but one language here, and that is
the English language... and we have room for but one sole loyalty and that is a
loyalty to the American people."
Theodore Roosevelt 1907

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"I fear the day that technology will surpass our human interaction. The world will have a generation of idiots" Albert Einstein

D Walker

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Re: Caterpillar 3116 Mechanical Injection
« Reply #7 on: August 22, 2013, 10:23:02 AM »
I'm sure you know but, you can't lug a mech diesel. You will load the cyl with fuel and cause bearing and ring wear. I would do regular oil sampling just to make sure you have no fuel dilution in the oil. You have to keep them things reved up there.
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fabr

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Re: Caterpillar 3116 Mechanical Injection
« Reply #8 on: August 22, 2013, 01:31:30 PM »
Yes,you are correct,of course. The point I was making was that that gutless 3116 cat will be near peak torque after a shift. Redline is 2600. I usually run it at 2400 or so down the road.Got to to get 65mph. I only have a 6 speed trans also.Sure wish I had split gears.
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"There can be no divided allegiance here.  Any man who says he is an American,
but something else also, isn't an American at all.  We have room for but one
flag, the American flag... We have room for but one language here, and that is
the English language... and we have room for but one sole loyalty and that is a
loyalty to the American people."
Theodore Roosevelt 1907

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"I fear the day that technology will surpass our human interaction. The world will have a generation of idiots" Albert Einstein

fabr

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Re: Caterpillar 3116 Mechanical Injection
« Reply #9 on: August 22, 2013, 01:38:55 PM »
Walker,do you think I need to do oil sampling or can I just change it very regularly,like every long trip? I won't be making but 2-3 ,1500-2000 mile trips a year. I know these little cats like clean oil.
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"There can be no divided allegiance here.  Any man who says he is an American,
but something else also, isn't an American at all.  We have room for but one
flag, the American flag... We have room for but one language here, and that is
the English language... and we have room for but one sole loyalty and that is a
loyalty to the American people."
Theodore Roosevelt 1907

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"I fear the day that technology will surpass our human interaction. The world will have a generation of idiots" Albert Einstein

D Walker

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Re: Caterpillar 3116 Mechanical Injection
« Reply #10 on: August 22, 2013, 05:16:57 PM »
You should be fine on just oil changes at that Interval.
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fabr

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Re: Caterpillar 3116 Mechanical Injection
« Reply #11 on: August 22, 2013, 05:35:33 PM »
  Kind of what I thought. It's not like I'm running big miles or needing to stretch oil changes to economize.

  From what I understand these little cats can run under full load for many  miles at a time and not care. Might be slow but it'll get you there. I drove this truck and trailer with almost a full load in it compared to what I will be hauling from Florida and it was not that bad at all(other than a ton of other BS issues LOL!!!) at pulling other than a couple of long ,steeper grades.Even then it only pulled down to 50 or so . I'm figuring another 40 or so horse and another 100 or so ft.lbs. torque and I'll be just fine and within the capability of this engine to live pretty well from what I can find researching it.
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"There can be no divided allegiance here.  Any man who says he is an American,
but something else also, isn't an American at all.  We have room for but one
flag, the American flag... We have room for but one language here, and that is
the English language... and we have room for but one sole loyalty and that is a
loyalty to the American people."
Theodore Roosevelt 1907

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"I fear the day that technology will surpass our human interaction. The world will have a generation of idiots" Albert Einstein

Carlriddle

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Re: Caterpillar 3116 Mechanical Injection
« Reply #12 on: August 23, 2013, 05:40:32 AM »
Not sure how you traveled back to KS, but the stretch of roller hills from Bham to Memphis up I-24X Is a real ball buster.  65-70 is easy going down hill 45-50 going up.  Just about non stop for 200 miles.  Gas truck couldn't do it, wallet couldn't afford it.

Thats a nice truck, I'll have to stick my head in there next time. 
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fabr

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Re: Caterpillar 3116 Mechanical Injection
« Reply #13 on: August 23, 2013, 06:01:52 AM »
I avoided that route coming back but I did intentionally run the hills in Missouri. So long as I run the interstates I'm OK. It's the off interstate routes that can have some real ball buster areas for me.
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"There can be no divided allegiance here.  Any man who says he is an American,
but something else also, isn't an American at all.  We have room for but one
flag, the American flag... We have room for but one language here, and that is
the English language... and we have room for but one sole loyalty and that is a
loyalty to the American people."
Theodore Roosevelt 1907

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"I fear the day that technology will surpass our human interaction. The world will have a generation of idiots" Albert Einstein

fabr

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Re: Caterpillar 3116 Mechanical Injection
« Reply #14 on: August 23, 2013, 07:03:10 PM »
Well tooling came in today. Engine only has 78K on it and was Cat serviced at 50K so I decided to ,for now, not run the  valves since they were done then. I turned the fuel stop screw out 1 turn as I have found that to be the most universal opinion as to what is safe with this engine. All I can say is wow. Notice I did not use caps in wow nor an exclamation point.  ;)  rofl It did make a quite noticeable difference though. I think I can actually live with it. If not,in goes the exhaust temp gauge and will turn it up to what universal opinion has said is a safe EGT. I understand that to be 900* safe and poof @ 950. That be a  nono
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"There can be no divided allegiance here.  Any man who says he is an American,
but something else also, isn't an American at all.  We have room for but one
flag, the American flag... We have room for but one language here, and that is
the English language... and we have room for but one sole loyalty and that is a
loyalty to the American people."
Theodore Roosevelt 1907

-----------------------------------------------------------
"I fear the day that technology will surpass our human interaction. The world will have a generation of idiots" Albert Einstein
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