Author Topic: Recommed rpm limits for Cat 3116  (Read 462 times)

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Offline ontheroadagain

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Recommed rpm limits for Cat 3116
« on: August 03, 2018, 12:45:08 PM »
I get mixed messages as to how high to rev a Cat 3116  some places in the book say 2500  its always going at least that just before it shifts.. another place in manual said 2600 and another said 2900  its at 2600 at 70 or so. its in a 91 Beaver Baronet. 4 speed Allison
91 Beaver Baronet... 01 Dodge diesel 4x4  04 Ram SRT10

Offline Brett Wolfe

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Re: Recommed rpm limits for Cat 3116
« Reply #1 on: August 03, 2018, 02:27:42 PM »
Best advice is to call the Caterpillar RV Hotline with your engine serial number: 877 777-3126.

The pertinent RPM's you want from them are:

Idle speed:
Peak Torque ____ lb-ft @____RPM.
Peak HP _____ HP @ ____ RPM
Governed _____RPM 
Overspeed (max speed in overrun situation/no throttle) _______RPM

Offline David.e.atherton

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Re: Recommed rpm limits for Cat 3116
« Reply #2 on: August 03, 2018, 03:16:18 PM »
On the road again, may I suggest that your Caterpillar 3116 is a mechanical engine. The steps to increase engine rpms( is involved and required several operation steps in order) using special tooling.  Have all technical information and tooling to preform this operation and
 would not attemp trying this at home. Ask Dave Dave Atherton Retired Cat Mechanic

Offline David.e.atherton

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Re: Recommed rpm limits for Cat 3116
« Reply #3 on: August 04, 2018, 06:34:18 AM »
On the road again, hi back with you on your 3116 engine rpm question. Looking into
the question with technical information on 3116. I need. S/N number off your plate on
valve cover, the reason on setting of your overhead ( which includes injectors fuel output
Injector rack synchronization, engine rpms and valve setting. ) the fuel load will be determined
engine rpm for rated horsepower. It can be 2500 rpm or 2600 rpm. Excess fuel timing
will fall back on setting fuel rack synchronization hunting or surge up and down and excess
smoke.  Ask Dave. Dave Atherton Retired Cat Mechanic.

Offline ontheroadagain

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Re: Recommed rpm limits for Cat 3116
« Reply #4 on: September 09, 2018, 09:18:46 PM »
David 
I don't want to modify the engine just not overrev it.  each speed setting seems to say it will blow up if it goes over this speed  it makes me nervous as I said its shifting at 2600 now and would be over that at 80 mph... I normally only go 65 70 so that's not a problem...got to make Beauty last a long time so don't want to do anything to hurt her...
91 Beaver Baronet... 01 Dodge diesel 4x4  04 Ram SRT10

Offline David.e.atherton

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Re: Recommed rpm limits for Cat 3116
« Reply #5 on: September 10, 2018, 06:08:13 AM »
Ontheroadagain, could you do me a favor and send me your engine s/n number and arrangement number located on top of valve cover. When I get in this afternoon will
Send you all the engine specs off Cat program on serial number for your engine .
Ask Dave, Dave Atherton Retired Cat Mechanic

Offline David.e.atherton

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Re: Recommed rpm limits for Cat 3116
« Reply #6 on: September 14, 2018, 06:59:27 AM »
Ontheroadagain, I have not heard back from you on your question with Cat 3116
engine needed information from you engine s/n number. Ask Dave, Dave Atherton
Retired Cat Mechanic