The Heinz

56 minutes ago, other dog said:

I always stopped at Big Boys, no problem finding a parking spot either because all the super truckers had to go to the Pilot or the Petro.

That or the Kenly 95. Sure it's huge and has some neat display trucks, but it's not worth stopping at unless you like spending a premium on whatever you get from the truck store. 

If anyone's in the Kenly, NC area heading up or down I95, I recommend Big Boy's. It's the only truck stop I've been to (I haven't been to many non-chain truck stops, lots of Pilots and Loves) in NC with a family-run food joint. And they kill it with good ole Southern class. If you're not in a truck, there's several nice restaurants in the Selma/Smithfield area; I personally recommend Zach's Char-Grill in Smithfield, family-run, cheap, fast, and great hamburgers, and the Chicken Barn for great chicken at a little bit of a premium. 

4 hours ago, skydawg said:

Was this a new or restored truck when it was a display truck at Mack? Has it ever worked or is it basically a new truck?

From what the owner told me, it was originally in use with a fuel company before it was likely wrecked in the early 80's. It was then bought privately, and as far as we know, never has seen revenue service since. 

The 690 model being discontinued is absolutely true, and you can thank Volvo for that. Jacobs told me outright it was Volvo that produced them, and now obsoleted them without a backup. This topic is exactly what brought me to this forum in the first place, we had a 2000 RD that had top end damage thanks to someone not torqueing the rocker shaft correctly, ruining the head and the jakes. The customer ended up buying a used one from somewhere and sending it in. 

We see a lot of diff lock switch failures in newer Macks, but I don't know if it being pneumatically disconnected will affect that as a problem or not. I haven't seen a truck with exactly what your issue is, so I wouldn't be able to say for sure. 

1 hour ago, 67RModel said:

What a shame. Looks like the one size fits all mantra manufacturers push has taken over Mack.

Customer: "I want a truck specd to my preferences for a specific application."

Mack: "There are no options anymore. Here is your 2024 Granite with an MP8 445C engine, Mdrive transmission, and hub pilot wheels. We will notify you when the first recall comes in."

Which would be almost immediately. A new recall just dropped concerning the drag link possibly being defective, stating that the affected trucks need to be parked until repairs have been made... What repair you ask? Volvo doesn't even know! "Once we have an approved remedy (repair) another communication will be sent out." 

8 hours ago, Jayphee said:

I am having the same issue with my transmission, it is disengaging on 6th and 12th gear. Is there someone that can reshare the bulletin mentioned above? Thanks. 

I'll repost it, here you go. I don't know enough about the technical side of the mDrive to give any further advice other than the ribbon harnesses go bad a lot. If you're looking for it in Impact, it's called the Passthrough Kit. 

Mdrive F GU series.pdf

We have our answer: NO. Our sales manager said they haven't been offered for quite a long time, probably when Volvo happened if I had a guess. 

59 minutes ago, Joey Mack said:

Be careful Heinz,,,  those salesmen might be on here..  of course you havent told us which city your in. 😉

Yeah no, I highly doubt it haha. I won't name any names to help protect my identity, because these guys definitely are the kind to make a mountain out of a molehill. 

I sent one of the salesman an email asking about the spokes, let's see what the reply is. 

17 hours ago, 67RModel said:

If you get a chance ask the sales manager or a knowledgeable (might be a long shot lol) salesman at your dealership if he knows if you can order a new Mack with them. 

A long shot is exactly what it would be haha. There's really only one salesman I like here, the rest are either crooks or absolute mo-rons. I'll make a point to ask though! Was busy and didn't have a chance to go that route yet. 

Those are some awesome pictures, it's hard for this American to realize other countries have Macks too! 

I've never seen spoke wheels on any truck that has entered our shop personally. I wouldn't doubt that it is an (expensive) option from the factory, but nearly everyone that orders new trucks around here are ordering for a fleet, or are keeping options cheap and easy to maintain. 

I know JPRO is getting popular, but I have no clue what the price is like, or how in depth it can get with Volvo's exclusive programming (screw Premium Tech Tool, it can burn in the eternal lake of fire for all I care). 

I was just thinking this the other day, glad my question was answered without me having to ask! I thought the question up when remembering passing an old R Model going to work super early in the morning several years ago. I think it was an almost John Deere green, but it was pitch black and I am a bit colorblind. I told one of my coworkers that worked on old Macks previously to being a Cat tech, then to the fleet we both were at, which sparked a conversation about the offset cab models... Man, I love old trucks. 

It's no skin off my back, just glad you're able to get the truck going again. I was gung ho about it until I realized I wouldn't be able to sell easily to someone I know only through a forum. I'd say it may be best to have your shop look into setting up an account with us or their local dealer, especially if they see a lot of Mack's newer and old. I haven't been in the best spot to try and help out on this forum, all last week I was the only shop parts guy here and was wide open all week. 

You could try getting up with Rock Mount Radiator, they're nowhere near you, but I've heard good things about them. I've never had to look for radiators on a truck that old. I tried using the VIN you provided on the camshaft/lifter thread, but it genuinely is made of unobtanium. 

You can order this from Walmart believe it or not, SKF 31244, or Napa. Also some other places online if you want. 

Here's a list I found of crosses for 320-2022:

It crosses to a modern Mack number, but it is utterly unavailable. Might be best to cross some of these further if necessary. 

Took a little bit to figure this out, but as long as an ENDT675 is the same as what Impact says is ENDTB675, you have the correct camshaft part number, and PAI does show stock of their version ECM-9002. 

This is also the oldest Mack I've searched parts for. 

I believe yours is "new" enough Impact would have info on it. I've looked up a couple of E6's before. Outside that I don't think I have anything else to look up. I'd need the old part number your truck had or your truck's VIN.

Also, I'm extremely unreliable this week. Running solo in the shop so I don't have any downtime to check this forum out before I leave for the day. 

3 hours ago, fjh said:

The ps pump is engine mounted on mp engines as well I believe are they using engine oil too? 
 

just sayin!

The power steering fluid in MP engines is ATF, we use Mobil D/M in most if not all our locations. The pump (called the tandem pump because it is also the fuel pump) is attached to the geartrain. I have never seen an ATF/oil intrusion caused by the tandem pump personally. 

The air leak in the bellhousing is likely the braided steel air line that feeds the clutch cylinder. Driving the truck with that leaking will cause numerous transmission failures relatively quickly, I'd highly recommend getting that fixed ASAP. It involves dropping the transmission if that will help. The 7th injector/AHI nozzle usually wouldn't affect the engine at all, the only connection with the fuel system it makes is at the housing where it is fed from. I'd change fuel filters and make sure your fuel is clear before going down the rabbit hole that is the MP engine fuel system. 

The switch itself could have failed, it's really common around here, or the pigtail/harness could have failed. We usually end up replacing both sensor/switch and pigtail. This is only a possibility, but it's what we see more often.