Lmackattack

What drive train did you guy spec with it?

for every 60,000 miles one can receive $1000???? If my math is correct thats a bonus of about .016 CPM for driving teams...Hell Id pay my Employer $1000 just so I did not have to drive teams. It sounds great until you do the math. In my opinion they should be looking to get a driver home as often as they can vs keep them out on the road for longer periods. I cant see them retaining drivers with this smoke and mirrors program. But thats just my .02 worth

when was the last time it was drained? need to drain it again in say a week and see how much oil comes out of it

some of the later R models and early CH models had a known issue with surge tanks and coolant push issues, did you replace the cap yet?

I keep calling it the Antler for some unknown reason?

I know that engine and metal technology has advanced but simple physics stay the same. A smaller engine working hard to make 450Hp will not last as long as a larger engine that makes the same hp but under less stress. Synthetic Oil has improved engine wear but lets be real about any of these new engines. Every engine Mfg highlights the good HP and TQ numbers . they dont highlight they bad things with them....Regardless of engine stand testing, A large percent of them out in the real vocation world cant get past 300,000 miles without some sort of major costly issues. To me even the older engines that needed bearings at 300k were still more reliable regardless of their HP. You could make the argument that the little 300hp maxidyne used today is a better option on cost savings alone.... HP and TQ are just numbers same as operational cost and replacement.. It reminds me of the old saying Good, Fast and Cheap, you can pic 2 but never have all 3

I will admit that after being out of an R model for a while then getting into one it takes a few stop lights to get back into the habit of letting the RPMs drop before grabbing the next gear. I also tend to pull it out of 5th looking for that next gear on the highway . but they were the trucks I learned on and it comes back to you quick. I think the guys that have never driven a 5 or 6 speed mack but spent years with 13 speeds have it harder to grasp the shifting of them

I think The 9 speed is the closest at .71

I know alot of OTR guys liked the Series 60 but all the billy big rig paccar owners tried to talk if down for it not being a cat or cummins. I think it was just as reliable as the 3406E and it got better fuel milage.

low pro 24.5 is basically the same overall diameter as a 11R22.5. The rev per mile between the two tires is a difference of less than 1mph in top gear. You are in a pinch here. You can turn the RPMs up to 2100 safely but it still does not change the fact of the huge overdrive that the little 300 still pulls in. I had a friend with a low RPM motor turned up to 2100 and it did great pulling 73,280 around with a 6 speed but it would drink the fuel. I ran out of fuel one day and the 55gal tank was full when I left the yard. mind you this was all Chicagoland driving. Going to a 9 speed with a slower OD will allow the engine to not work as hard but it drops your max MPH down to 54MPH (at 1800RPM) and you would want to turn the pump up anyways. Also that Mack 9speed with 5.73 rears will have you some very short gears on the low side. I would think that the low side would have a few redundant gears but the high side would better suit your needs. 4.42 was a common rear gear for the 9 speed. I should also mention that the 9 speed mack had range selector clutch pack issues. there were revisions made to them thru the years Trent

I think his best bet for now is to turn the pump up to a 2100 maxidyne setting and see if he likes it better? it wont change the gap between 4th and 5th but it will have more balls pulling thru the gears. I pump re cal around here is about $150 if you pull and re install it yourself.

Ok that is why I was asking... with 5.73 rears you are kinda limited. That Mack 5 speed has a .60 overdrive in 5th gear and should put you at 74MPH at 2100RPM . If you can only do 65 I think you may have a low RPM pump setting (1800RPM) you can turn that pump up to a normal 2100RPM pump and it will run alot better but it will drink some fuel. for example here are the top speeds at 2100 rpm with 22.5 tires and 5.73 rears Mack 5 or 6 speed direct with 22.5 tires and 1:1 trans 44MPH in top gear T2090 Mack 9 speed with 22.5 tires and .71 OD puts you at 62 MPH in 9th gear 12 speed mack with 22.5 tires and .78OD 57MPH in 12th gear 8LL with 22.5 tires and .60 OD puts you at 60 MPH in 8th gear you can see from where the speeds fall between a direct trans or a .60 to .78 over drive Trent

First off what rear end ratio do you have? Mack made some of the slowest and fastest transmission and the rear end gearing was very different.

Truck paper has a section for parts for sale and they had lots of take off sleepers.https://www.truckpaper.com/listings/truck-trailer-attachment/for-sale/list?catid=35032

Dan I like how you are using what looks like a KW style Battery box/Step under the doors. Its one place where I think Mack had it backwards on sleeper cab trucks. With putting the fuel tanks under the bunk and the batt box under the cab it just looked cleaner and the exhaust routing did not have to be stuffed under the cab. The KW steps also have a much wider foot plate for ease of getting in and out of the cab. The use of the early Rs700L box is interesting. I recall seeing a Superliner where they added a pete or KW style Battery box/steps like you have under the cab and behind the steer tire they removed the stock Mack air tank and batt box. In its place they put a flat painted panel in its place similar to how a Pete does. made the hood look even longer than normal.

Looks mounted up side down. Makes it easy to lousen but what a mess it will make when the seal brakes. And then how do you bleed off all that air LOL? I always refill the new filter with fuel to avoid air lock

Brad...try postimage.com upload and copy the link here. its one of the fastest ways to upload stuff

dont forget about the lovely air throttel

I would check the temp with a 2nd gauge. or temp gun.

that is just a eye opener

"you get a gold bulldog on the hood" WTF I bet he dont know where the bull dog is mounted

was this guy for real......did MACK hire him off the street?

I would be curious to know how many drum mfg choose Mack for their display truck at this show. Seams Macks garbage and Cement truck market has been slipping the last few years

If you were not working the truck electric fans should work. lots of car guys use them and some of the newer fans a gairly quiet and push /pull the air needed. that being said I always like a truck that can work and show... I think the KW A model Extended hood is 74" long you can use that as a reference to the superliner hood... If I was to do it and had the $$$ to play with I think I would move the cab back a few Inches and have the hood re glassed the extra length. It would still look like a stock superliner until you started looking it over closer. just my .02

I know the E9 takes up alot of the superliner hood with the turbos behind the engine. I would say for sure the V12 turbos would need to be placed up top or hang them each from the side. In theory the block is as long as a straight 6