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If you had the opportunity to redesign the Mack chassis and the MP engines what would you change?


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  On 12/1/2022 at 1:10 AM, Onyx610 said:

And yea that one lobe is pretty chewed up 

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yup think that's kind of rare for the n14 the small cam engines would do that on a regular basis! they when to bigcam then big cam2 and the issue faded !  Didn't work on these much!

  On 12/1/2022 at 1:58 PM, fjh said:

yup think that's kind of rare for the n14 the small cam engines would do that on a regular basis! they when to bigcam then big cam2 and the issue faded !  Didn't work on these much!

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It may be rare but at 20yrs old and approaching 1mil, I have 1 more that needs a cam. Can't get them though, N/A from cummins gotta go aftermarket.

  • Like 1
  On 12/1/2022 at 6:46 PM, mdixon said:

It may be rare but at 20yrs old and approaching 1mil, I have 1 more that needs a cam. Can't get them though, N/A from cummins gotta go aftermarket.

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PAI!

  On 12/1/2022 at 8:19 PM, BOBWhite said:

As far as I know you cannot buy from PAI directly. This web sight has all there stuff 

https://www.heavydutypros.com/cummins-engine-parts-engine-parts.aspx

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I can't buy from them anyway. Only company approved vendors with a credit account.

MACK TRUCKS also needs to do an UPGRADE on its headlamps.

IMG_20220826_124421096_HDR.thumb.jpg.83db7964072719543c074e156b2edce8.jpg

Replaced all of them...

IMG_20220826_124410637_HDR.thumb.jpg.3c7e3c9461e98442681441f3faa162f7.jpg

On all 4 MACK GU813s

IMG_20221130_132130616.thumb.jpg.090bef06f1f221951a66a900f450d7c5.jpg

But, they still are rubish. Poorly built headlamps from TYC. They get foggy, yellowish and tarnished so easy and they get water inside.

Edited by EM6285

That's a VOLVO issue..   Have you ever used the 3-M buffing kit's from N.A.P.A. ?

We haven’t had any issues that you’re seeing with the headlights. Even after it seeing salt from plowing and acid (zep alumabrite) lol

  On 12/2/2022 at 1:55 AM, EM6285 said:

MACK TRUCKS also needs to do an UPGRADE on its headlamps.

IMG_20220826_124421096_HDR.thumb.jpg.83db7964072719543c074e156b2edce8.jpg

Replaced all of them...

IMG_20220826_124410637_HDR.thumb.jpg.3c7e3c9461e98442681441f3faa162f7.jpg

On all 4 MACK GU813s

IMG_20221130_132130616.thumb.jpg.090bef06f1f221951a66a900f450d7c5.jpg

But, they still are rubish. Poorly built headlamps from TYC. They get foggy, yellowish and tarnished so easy and they get water inside.

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Buy some “Off” insect repellent with “Deet” . Spray on headlights and wipe off. Makes them like new. Our company won’t buy new headlight housings so we use Off. It must be Off with Deet  though. 

  On 12/1/2022 at 1:58 PM, fjh said:

yup think that's kind of rare for the n14 the small cam engines would do that on a regular basis! they when to bigcam then big cam2 and the issue faded !  Didn't work on these much!

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I don't know we had like 3 or 4 Big Cam 4s 838cpl do it   really turned me against a cummins N-14  pretty bullet proof except for the junk ecm that cummins used on all of the motors back then

  • Like 1
  On 12/2/2022 at 2:23 AM, Mackpro said:

Buy some “Off” insect repellent with “Deet” . Spray on headlights and wipe off. Makes them like new. Our company won’t buy new headlight housings so we use Off. It must be Off with Deet  though. 

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if that's what it does to plastic;; what are results when someone sprays it on their skin . 

  • Haha 2
  On 12/2/2022 at 2:43 AM, bts-4120 said:

I don't know we had like 3 or 4 Big Cam 4s 838cpl do it   really turned me against a cummins N-14  pretty bullet proof except for the junk ecm that cummins used on all of the motors back then

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Yup, Junk ecm, injectors, and wiring…

  • Like 1
  On 12/2/2022 at 3:13 AM, mdixon said:

Ugh n14 wiring is awful

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I think that was the fuse to all the other issues

Some lined up after today's runs, not all of were back yet.

I'd change the clutch setup on these CXU613s. Trying to adjust the free play on a bound up linkage sucks, and changing a broken air shaft roadside is awful.

 

Edited by mdixon
  • Like 1

You can delete those stupid air assist clutch’s out to just cable. We’re you adjusting clutch or freeplay? 

Edited by Onyx610
  On 12/2/2022 at 3:18 AM, Onyx610 said:

You can delete those stupid air assist clutch’s out to just cable 

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Oh yeah! That'd be cool. Do you need a different way to mount to the clutch shaft?

  On 12/2/2022 at 3:22 AM, mdixon said:

Oh yeah! That'd be cool. Do you need a different way to mount to the clutch shaft?

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Yup by one kit you'll see what is going on and you can do the rest of the fleet quite cheaply by your own ingenuity!  its not rocket science! won't cast hardly anything! an hour or two of your time! 

Here is the thing I HATE most on new MACK TRUCKS...

That bump-forward center console at the dash.

IMG_20221202_133210231_HDR.thumb.jpg.08867f76778babad8c133bd8db104fdb.jpg

Very uncomfortable ride for a 3 men crew. Whoever sits at the middle gets the worst ride.

IMG_20221202_133155528_HDR.thumb.jpg.ee13b2b31fff2793c8737dbfa06fc9d6.jpg

MACK TRUCKS needs to fix this "lump" on their dash-board design...

And  why MACK TRUCKS needs to cram 1/4 of the engine under the cab? I wish they will go to a flat firewall cab structure with ALL THE ENGINE IN FRONT OF IT and not part of the engine under the cab.

IMG_20221202_133137168_HDR.jpg

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