MACKS

27 minutes ago, Ricky Beals said:

The truck is my personal truck. I worked as an Insurance agent for 27 years and built a nice business. The company I worked for figured out a way to get out of their contract and well they did. I have known for a few years that I was very unhappy with the life I had. When the job ended and it just ended I asked my wife of 30 years if she would move back home where I grew up. I have always wanted a dump truck, excavator and bull dozer. A lot of folks including my wife say I’m a little crazy, might just be. I got the excavator and dump truck and hauled 30 loads of gravel for a house and shop pad.  Not one time did I ever think I was working. At first I didn’t like digging near the edge with excavator but I got some seat time and now it doesn’t bother me at all.  I bought the wrong dump truck and made my first post on here about changing out the front springs. It was a mack tractor that was converted to a dump. I then sold that dump and bought the RD688 and I think it’s a good truck. To me this is fun and I definitely understand my limitations. Would never try and rebuild the motor, tranny or rearend. This I think I can do with my buddies help. If the Trunnion bar and saddles are good than it was a good call. If not then I will probably post up here and see what my options are. 
 

Macks what is rebuilt back right?
I have looked the springs over and not one is broke. Do they need replaced? If not then I’m going to assume everything from saddle back to cover gets replaced. On Insulators ATRO makes a kit that has all the bolts and pads. Should be good there.  I’m paying the guy helping me but he is also a friend. He will be out of pocket for a few weeks but we should get this down last week in March.

Mark T that’s what makes me a little hesitant. It’s a gamble and I know it. The money ain’t a problem because I have already set it aside. I’m OCD and know I will do it right. If we end up with a bad bar or saddle’s then we are over our head. I will be calling Axle surgeons of Arkansas. Think I’m going try it. It may even be fun and I definitely learn a few things. 

Yeah u can do it it’s not brain surgery,lol,just be careful make sure u support the truck properly and have at it,let’s us know what u find when u get it apart,good luck..

1 hour ago, Mark T said:

You sorta need to know what you're looking at to determine how extensive a repair would be needed. There's a lot that can be worn on the suspension and when it's all worn ?  then there's lots of movement . Replacing a trunion stand is a huge job on a dump truck, even for a regular spring shop. You need to find a place familiar with Macks who could be honest with you about what needs to be replaced.  (lol)  lots of guys like to think the rubber pads at the end of the springs cure everything. Maybe a new torque rod too,  cause they're the cheapest component.....it's usually not the rubber pads or as simple as a torque rod .  Just say'n.   Worst case the repair easily reach 5 figures on a dump truck.

That’s the truth,and the reason I say if in doubt go with all new parts but I forgot the trunnion bar is not removable like on the 58, that could be a real cost factor if it’s shot..

22 minutes ago, Ricky Beals said:

The wheels walk I have driven it backwards with the bed up. Have not made a sharp turn with the bed up. Tie rods bushings are coming out. I have two that are in line with drive shaft. I have to pull the big dump cylinder to have it repacked. I have a 32,000 lb excavator. I wondering if I shouldn’t take that dump bed off before I do all of this. After I release the big cylinder and hoses nothing holding it on but two pins at the rear. Take them out and lift that bed off.

 

I can take a video of driving it backwards with turning tight radius and showing how much it walks out. It will be next week when I’m down there.

macks so I understand your process place jack under say drivers trunion. Jack up till both sets of tires are off the ground? Then wedge big bar between springs and frame and check for movement. 

Yes but if your seeing the rears walking out bad no sense might as well rebuild it if u have the bucks to do it right..

34 minutes ago, mechohaulic said:

if he's unsure of the process ; couldn't  he just take off the end cap (which has to come off anyway at some point), remove nut and hardware  . clean off hopefully some grease and see the gap between bushing and tube ?

He could do that,I just think he should check the actual movement of the springs,see how much the rears are walking out,if it’s just slight he could just keep on hauling.

To check,back the truck up while turning hard one way and then the other look to see if the wheel are moving out of line,they should stay perfectly straight or you can jack it up under the trunnion bar on one side and get a big bar in between the spring and the frame rail and pry it outward to check for movement..

23 minutes ago, Ricky Beals said:

And yes Macks I did think that I could replace the bronze bushing with a polyurethane bushing. After talking with ATRO he explained to me that ATRO didn’t make a poly bushing to replace the bronze original. If I understand you correctly your saying there is no poly replacement and it has to be replaced with original bronze bushing.

Yes that’s correct,only bronze,once u get it apart and inspect the bushings if there worn all the way thru then the bar and the saddle will have wear since they were contacting each other,new saddles come with the bushings already pressed in,you might want to check out Stengel bros on line and u can price every thing out,I think they have the best prices ..

If there’s no fluid leaking out of the cylinder it’s good,no repacking needed,body stays up till u move the lever that opens the valve and lets the fluid drain out and back into the tank..

Here on Long Island most are at 5 bucks for diesel..

2 hours ago, terry said:

the days of laying a part on the counter and parts man going back to get are gone!   terry

Hell we can’t even put a part on the counter at our Mack dealer,COVID rules..lol😂

2 hours ago, Firefox898 said:

I’ll have to ask him to send me pics of the motor..but it looks pretty clean, my main fear/ptsd is frame rust..

There’s no rust in that frame,you can tell by the picture of the end of the frame,perfectly clean,that whole truck looks immaculate..

21 minutes ago, Joey Mack said:

I'm just impressed that you have a 2021,,,,,,, With a manual transmission...  👍    jojo

My thoughts as well..😂

So are you saying it was fine until u greased the throw out bearing,doesn’t make sense..

Looks like the boost gauge,should get up to 20 -25 lbs or so under a load..

12 hours ago, R.E.D said:

I always use a gallon of Lucas...some people hate it ,some people love it.. usually no in between..lol.

Remember when we used to add a can of stp when changing oil in our cars..

1 hour ago, doubleclutchinweasel said:

I have heard of 15W-40 giving different oil pressure than SAE30.  I know folks who swear by both!

I remember years back we would run straight 40W just to have better oil pressure..

1 hour ago, Mack log truck said:

If that's a fuel line it must not be leaking because it's oil that i see, so must be from the valve covers? It starts great no matter how long it sits or 5-10 degree Temps. It has always started great, little bit of blue haze out of the exhaust but doesn't smoke once it's warm or under load. 

Back in 2008 I started a thread on here about low oil pressure on 96 e-7 350 I was look ing to buy,well I bought it and still running it,still has low oil pressure at ideal and still runs awesome,500,000 miles doesn’t burn a drop of oil,great engines..

10 hours ago, Mack log truck said:

I'll do oil changes more often, 2/3 of the hrs are @ 1,900hrs while running the log loader but I have no problem changing oil. And yes the steering boxes leak. It leaks oil at the small tube between the two valve covers, I'd like to fix that, what exactly is that doing? 

If that fuel line between the heads is leaking I’m betting it starts a little hard after sitting a day or two..

46 minutes ago, Joey Mack said:

I believe he Majored in 'Wiener' dogs.. with a minor in "Rearing" jojo

Haha,I had to google Pup Handler,never heard of that sick chit..lol

On 2/17/2022 at 10:30 AM, hicrop10 said:

Is it true that Biden has hired appointed a drag queen to his cabinet?Wtf.

But he’s a very qualified “Pup Handler” …😂

11 hours ago, Ricky Beals said:

I bought the truck Monday. After the salesman explained to me they just took the truck in on trade and have done nothing to it. General Manager wanted to fix it up and sale it so wasn’t coming off one penny. Salesman told me if I wanted anything done to truck it would cost me 145 an hour. They are putting in windshield for purchase price. I asked parts guy was it heavy frame and he said it was. Truck was bought by county new and they have owned it roughly 21 years. It’s a one owner truck. It’s a little rough on inside but I should be able to fix it up. It has cable controls to raise and lower bed. I’m going have some questions for you guys. Thanks for all the information. I truly think this is one of the best forums I’m a member of. 

Good luck,before you start pick up a tub of hand cleaner and a lot of bandaids..😂

19 hours ago, JoeH said:

We're all talking from different states. Fed govt drafts laws and states adopt them by and large but they'll adapt/modify as they see fit for their own purposes. Every state has their own nuances for licenses. In PA we get a notice every 2 years that if we don't submit a medical card before the old ones expiration date then our CDL endorsement will be dropped. Doesn't matter if you were "grandfathered" in, my dad got his CDL in the early 70s. He still has to get his medical card renewed I think every year because he's on blood pressure meds. Federal government regulates intERstate commerce, not intrastate commerce. They set the rules for going between states, but have no business telling states how to handle stuff in their own state.

Yeah I thought all the states were under the same federal guidelines,here in NY if you first got your cdl before 1999 and drive intrastate they give u a k on your license and no med required,but you can change that any time you want..

It stands to reason they can’t be good for the engine,always heard bad things about them..

How does the pedal feel,do you have free play at the top,is it possible the trans is not engaging? 

Sweet looking truck..