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little puppy

MP8 hand primer pump

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Hi,  have a 2011 pinnacle mp8, it's sucking air and leaking fuel around the plunger shaft ? Can this be rebuilt or do you have to replace the whole filter housing? Does it require anything special to do it? Thanks

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Gotta change the whole thing. No special tools really, stubby wrenches help. Just be sure to put the lines and fittings back in the same place. One fitting is actually a check valve and it will also fit in other places and cause problems. The primer pump is replaceable on the newer common rail engine 

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So no way to replace seals in the hand primer? That sucks, about his long sound it take to swap out? Thanks again for the info!

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Yup they encourage you to pump that bitch 200 pumps after a filter change! 

Now you know why ! so they can sell you a whole new expensive  housing  and 3 hours of labor ! 

 

oh joy

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On a Friday afternoon at 4:00 , yea I can do one in an hour! Lol. For a first timer , 2-3 hours. The skinner you are the easier it is. 

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He's heading your way pro!😂 I find it amusing that Cummins can install a nice little ELECTRIC primer pump and no one else has thought to go there! Not a Cummins lover how ever they at least addressed the need to prime and keep the fuel system clean! 

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Along with the rest of domestic manufacturers like Deere and Cat who install electric primers. Europeans dig cheap, low tech, hand pumps? If Volvo installed an electric primer they might get an extra year of life out of each injector once they start to bubble. 

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2 hours ago, Mack Technician said:

Along with the rest of domestic manufacturers like Deere and Cat who install electric primers. Europeans dig cheap, low tech, hand pumps? If Volvo installed an electric primer they might get an extra year of life out of each injector once they start to bubble. 

Even the leading Chinese heavy truck makers have made electric primers standard.

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3 hours ago, kscarbel2 said:

Even the leading Chinese heavy truck makers have made electric primers standard.

Now THAT’S ironic.

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There are so many passage ways inside the filter stands on the MP engines, it would be hard to bypass the primary side of the fuel filter stand. We talked about changing a fuel filter stand on here yesterday and guess what I had to do today? Yep , filter stand.  We have 2  CXN’s , 3 CXP’s and about 18 CXU’s and one Anthem. Had low fuel pressure in one of the CXU’s . There was something going on inside the filter stand.  Start to finish  a little over 3 hours. Including troubleshooting, r&r filter stand, pressure wash before and  after repair and test drive with laptop plugged in .

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Well i stand corrected every body else has electric and Volvo Can't seem to get it! They can tech the shit out of everything else  thou!😡

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This truck is a about to drive me bat shit crazy

You guys look at this est. and tell me if any part of it sounds reasonable. As far as the silicon boots, the shop Forman said ( the tech could best it leaking when he started the truck )

I want to meet the tech that can hear a leak in the air 2 air cooler with the engine running at idle under no pressure?.....

Estimate_10828459_v1.pdf

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24 minutes ago, little puppy said:

This truck is a about to drive me bat shit crazy

You guys look at this est. and tell me if any part of it sounds reasonable. As far as the silicon boots, the shop Forman said ( the tech could best it leaking when he started the truck )

I want to meet the tech that can hear a leak in the air 2 air cooler with the engine running at idle under no pressure?.....

Estimate_10828459_v1.pdf

Did you ask if they pressurized the intake system?   terry:MackLogo:

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Lmao the tech claimed to hear it leaking at idle..... no offense to you guys on here,  but they were blooming idiots.

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Lmao the tech claimed to hear it leaking at idle..... no offense to you guys on here,  but they were blooming idiots.

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They didn't pressure test anything, click on the link and read the estimate they wrote me. 

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Oh I had a fit,  and they weren't my first choice,  lol was my only choice when it started sucking air so bad it wouldn't run in Albuquerque NM

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Well if you use Pros flat rate  time they roughly  charged you 290 bucks an hour to change the filter stand  ! nice shop rate ! 😡Wish we could charge that Id be rich! Quite honestly its a shitty job much like everything else on these engines shit in the way,, cramped area to work in. (Cramped areas) We just did an EGR Cooler on an 8 yesterday we tried a different method rather than  removing the turbo and stuff we jacked  up the front of the engine worked fairly well , saved breaking turbo studs an all the other screw ups that go along with that job ,cut the time by a third  or so Worth trying in my mind!

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