I always had the thought that my LMTV was a bit on the slow side as the 3116 is a bit underpowered. The C7 M1088 we have seems like a drag racer compared. Drove a couple of other cat 3116 (one with 840miles and one with 270) and the seem a lot faster in acceleration as well compared to mine. (8.600miles). What are the things I should do to get that sluggish pick up improved? I don't want to modify the engine, just get it to what it should be.
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cat 3116 tune up?
- Thread starter Lmtv772
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The first gen trucks are all mechanical. The cat dealer can make some adjustment and give you a bit more power. On the 5ton versions they have 290hp I believe the injectors are a bit larger as is the turbo.
Like I said, I don't want more power, I want power back. I know it's mechanical
. What I'm asking is what are the things I can do to make her run like she's supposed to . Did you guy have any experiences.
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Sorry didn't understand the question then. I would do fuel filters first. Some of the fuel lines on one of my trucks have some cracking. It hasn't caused a problem yet and I don't use it much anyways. Once it warms up I was going to swap them. The rack is controlled by a linkage to the governor this is basically the throttle as the rack moves the engine gets more fuel. The truck I do drive has a 2012 reman engine. It's noticeably more powerful than all of the other 1078 trucks I have had. There is a port somewhere it's a plug hole made to open and attach a fuel pressure gauge temporarily to aid in engine diagnosis. If filters don't remedy your problem I would move on to fuel pressure and then consult someone more knowledgeable than me on the engine. If your trans is not shifting correctly it could feel like power loss. The sensor on the bottom of the trans is a common issue. And there is a throttle position sensor on the engine that gives input to the trans ecu also.
nevrenufhp
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Not having the injectors synchronized will give a power loss, and is part of a 3116 tune up. If you have the tools & patience, you can do it yourself. Most just let a Cat dealer do it. They can also adjust the fuel a smidge when they're in there. Some free power cant hurt. Cat dealers usually stay conservative on fuel settings. They'll sync the injectors, set the valves, and adjust the fuel screw. Out comes a happy kitty.
kiwifarms
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don't forget air filter too
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If you're feeling froggy, I have the CAT 3116 tooling kit (NOS) to sync, set and adjust/tune the top end. Comes w/ the manual and training video. (VHS). Not to difficult for the mechanically inclined. PM me if your interested. I'll have to dig them up.
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scottmandu
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Check the throttle cable. The three M1078's I've had all had the cable off by about 1/4-1/2 inch preventing full throttle. To adjust back off the nuts holding the cable to the bracket. Then pull the cable taught against the governor arm. Tighten the two nut to keep the cable in that position. Makes sure the governor arm is still against the idle screw. You would be surprised how much extra oomph is there when you have full throttle. As far as a "Tune" up the 3116 is fairly maintenance free regarding the fuel system. You can replace the fuel filter and check for leaks, unless your truck has tons of miles I wouldn't see the need for injector replacement or adjustment.
Not quite sure I am able to follow your procedure, do you mean take the slack out of the throttle cable?
scottmandu
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Stated much more concisely yes. My previous post was whiskey jabber.
Duckworthe
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I'm checking mine tonight!
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To ALL that inquired about the kits I "had"; after searching the tool crib and storage I remember selling all the surplus kits to a tooling middleman. I contacted him today and he moved them very quickly. He stated that they all went to auto/diesel shops and the such. The NSN was 5180 01 433 5174, manufacture by the Meyer Tool Inc, Cinn. OH. Sorry fellas, my mind is not the steel trap it use to be....
nevrenufhp
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While you're in there, you can back out the throttle stop to make sure you get full available power and rpm.
scottmandu
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Just a note, the throttle stop screw adjusts max RPM.. I've always been a bit nervous doing this, if you want more fuel but keep the same rpm limit the rack needs to be adjusted.
Overdrive
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Assuming that is the correct fuel filter quoted : Cat part # is 7E-9763? I got the eBay kit and was just getting ready to do the fuel filters. thanks for the heads up.
Duckworthe
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So I finally did check and adjust my throttle cable. It wasn't getting full throttle. Now it is, yes a world of a difference! No longer pushing my foot through the floor! LOL
larsenap
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You don't happen to have any other NSN's for the tune up kit do you? I tried looking up the NSN you quoted and it returned no results.
larsenap
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You don't happen to have any other NSN's for the tune up kit do you? I tried looking up the NSN you quoted and it returned no results.
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I'll be back home this weekend, I'll get thepart number of the kit.