JoeH
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Posts posted by JoeH
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Macks don't respond well to deletes.
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https://www.firstmotionproducts.com/mack-flywheel-housing-634gc5337m2/
Found one here. Getting started on replacing it tomorrow morning.
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https://www.firstmotionproducts.com/mack-flywheel-housing-634gc5337m2/
Called these guys this afternoon at 2:30, talked to Dale. Top notch fellow, he had 2 in stock in their Allentown PA warehouse. Paid $1200 over the phone, made the 50 minute drive and picked it up before the warehouse closed at 3:30!
It's aftermarket, no name on the casting and there's minor differences, but the part number they listed is a dead match to the "old" part number Mack gave me. Will very carefully compare it to the old one as we tear it apart. It's my understanding that there's different depth flywheel housings.
We have the engine rebuild book, so we will do what we can regarding "alignment" as there are adjustable dowel pins or some BS.
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Had the truck out on the road for a few days before the Temporary Registration expired. Runs & drives very nicely. As rough of a ride as it was back from Iowa it's completely the opposite locally with weight on. Rides very nice.
The flywheel housing is cracked six ways to Sunday. Waiting to hear from Mack if they can get me a new flywheel housing any time soon, otherwise I have to find a used one.
Filling wheelbarrows at a job
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I have a request in through my Mack dealer for a flywheel housing for our (new to us) 2003 MR688S. Has an AI350 with an Allison HD4560. Old flywheel housing has a decent amount of cracks all over it, visible externally.
If my dealer can't get me one for a few months does anyone have a good used one?
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On 4/28/2022 at 9:24 PM, Ricky Beals said:
Macks I didn’t see this until this evening. They came and went. It was just one guy. He took a grinder and cut a slit below the Trunnion bar in the stand. He then drove a couple of small chisels into those cuts. He then cut the bar right behind the stand on both sides. Took a 20lb sledge and knocked out both side. He then took the new Trunnion bar and slicked it up and we put it in one side of stand and drove it thru the other side. He welded everything up and was gone. Took him 2 hours.
Are those bolts clamping the trunnion bar in place? Is that how the stand was set up originally or did he add that?...
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8 hours ago, Joey Mack said:
I know.... Truly sad !!! got back from my 2 road calls. One cust. was a no-show. the other job took 45 minutes.. $60 bucks.. My costs out the door today $83.00... Just one of those losing days I rekon... well back to my shop, jojo
Not sure what the road call was, but you have to have a minimum. Every job has to cover it's expenses, including putting food on your table. The guy that bailed me out of trouble in Illinois charged me 400+ to show up, swap my lift axle tire onto a drive position, and rewire my fender lights. Took 2 hours total. Was worth every penny. You have tools you've bought, a work truck to insure/maintain. You've put a lot of money out to be in business, you shouldn't be making Walmart employee wages.
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We added a fuel surcharge to our concrete for the first time in 55 years of selling concrete. It's a way to cover the absurdity of one particular major expense that can wildly fluctuate. "If" the price ever stabilizes back into a reasonable range of $3, we will drop the surcharge. It also forces the conversation about how messed up things are right now.
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You have to figure what metric works for your business. For most it's by the mile. For me it's by the yard of concrete sold.
Figure out your average MPG.
Price per Gallon - amount per gallon you cover, ÷ MPG = surcharge/mile.
Example:
5.89 - 3 = 2.89 ÷ 6 = $0.48/mile surcharge.
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We use aluminum foil to seal inside the "v" clamp on our old ENDT676 motors. I don't recognize what you've got going on there, maybe you could wrap it in a few layers of foil before putting it back together.
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Paid 5.899 today.
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$5.45+ here in PA. We added a fuel surcharge, first time in 55 years. I'm not paying the uptick in fuel cost, the customer is... But fuel is definitely driving inflation...
Lets go Brandon!
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Do you mind sharing where you got that wiring diagram? I'd love to get a copy of the wiring diagrams for my MR...
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On 4/17/2022 at 7:14 PM, Joey Mack said:
I just had a crazy thought...You rekon with all this promoting of electric vehicles, gas and diesel will be below $1/gallon, next year?? when all the 'Sheep' buy these chitboxes, there will so much fuel to sell off that it would have to be discounted,, any thought's? jojo
No no no no. They're going to raise fuel prices to punish the small folk for not buying an electric car! Further making the electric car unattainable!
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The PennDOT paperwork is far more stressful than the blowout. Some bureaucrat in an office somewhere gets to decide if/when I've provided sufficient documentation before I even get a pa title for the truck.
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It's home, have to sort out some paperwork with PennDOT. We added a lift axle and tried to up the GVWR. Already had the truck in Iowa by the time we got the request for more info and pics from PennDOT. Temporary registration expires April 30th.
Have to sort out paperwork, repair fenders and lighting, get through factory required "on site" training/calibration this coming week, repair flywheel/rear main seal... before the truck will hit the road. Can't use the truck for deliveries with how big the puddles are it's leaving. Can't tear the truck apart til the factory rep comes to run us through training/calibration.
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In the suburbs of Philly there's a barrel truck company in every town. Guys with trucks like ours run 1-2 trucks to cover the smaller stuff the barrels do a poor job handling. Out in your neck of the country things are probably pretty well spaced out. Barrel trucks would likely lose a load before they even got to their job.
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The timing covers might be different. I think that's where the front mount grabs the engine.
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The rear main seal is leaking pretty good, or the flywheel housing is cracked. Won't know til I get it he and apart....
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Controls are mostly ok, minor damage to (very easily replaced/fabricated) brackets holding the levers. Truck will get our steel diamond plate fenders pretty quick. I knew these chinsy aluminum ones would be a problem, was just hoping it wouldn't have been this soon!
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Finally got pictures.
Flew out to Iowa yesterday, picked up the truck and ran around town getting the "hope I don't need this" Kit they don't let you fly with.
On the side of Interstate 74 near Knoxville, IL.
Shout out to mobile mechanics like our own @Joey MackMack, they keep truck's rolling! We stole a lift axle tire for the drive positions, took the lights out then bent/beat the fender into submission, put the lights in and he wired it back up! License plate is now in the cab, it looks like shit!
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*waiting patiently for the jaw drop*
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- Popular Post
On 4/7/2022 at 7:47 PM, Catdaddy1958 said:I get that- but there are no active ECU codes. Is the travel adjustable, like the clutch actuator rods were on some older manuals? I bet that would restore the truck to service. I've seen a picture of the air cylinder- looks like an air operated version of the Mazda/Ford tranny mounted slave cylinder.
Any luck finding anything? I know you didn't specifically say you "deleted" the emissions, but that seemed to be the implication. Sadly Mack trucks don't respond well to being deleted, it brings on a whole plethora of problems. You might consider reinstalling the emissions crap (hopefully you didn't toss it....) So that you can use the dealer as a resource for diagnostics...
I learned 15 years ago that once you venture away from Stock, you're pretty much on your own. Engines are engineered to work in a certain way, once you start changing variables it can get ugly fast.
I suspect Mack (Volvo) engineers their programming to make their trucks go to shit if you try any funny business with the emissions.
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MR688S frame work
in Modern Mack Truck General Discussion
Posted
Broken lower right flywheel housing to block bolt.
How do we adjust flywheel housing runout?
0.022, 0.000
0.028, 0.013
Those are the runout readings on the four corners.