MACKS

47 minutes ago, Old Man said:

Thank you, thank you, thank you, these are the diagrams I've been looking for. I'll double check the spaghetti line placement in diagram 1 tomorrow. I installed all new o rings in diagram 3, purchased them as a kit. Diagram 2 & 4 looking for a rebuild kit, just haven't come across it yet. Thanks 

Easy to find online,just google it..good luck.

I saw a quick clip on the news this morning Biden and co are talking about approving oil drilling in Alaska,a lot of drilling,where the hell did that come from..

24 minutes ago, fjh said:

The trunnion cap  and seal on the oil style is different and was only offered for a short while  and It was  absolute mistake DONT GO THERE! The greased trunnion will self vent thru the back via the back seal its a one way check valve in its self putting the vent on the cap is OK how ever we used to put a grease nipple there and push grease thru there this forced the grease right thru the flutes in the brass bushing out the back , for  those the lazy ones that wouldn't jack the truck up ,  it would at least get some grease! just how we would do things ! 

 

My opinion!

The seal is also diffrent on the inside its an actual oil seal

That totally makes sense..

25 minutes ago, Joey Mack said:

Macks..  I would think in a perfect world, it woud be ok..  But, when I started to fix these Dogs 23 years ago,  We only put grease in them.. grease is nothing more than oil and a thickener..  Im sure you have seen the back side of a saddle when the truck is sitting, and the lower edge of the saddle is right up to the flange on the trunnion tube.  Which means the brass bushing is worn and the trunnion bar is flattened on the bottom.   My point here is...  how could oil stay in there?  the rubber seal is just pushed in by hand, so it's not a press fit..  anyway..  with all the postings on this...  to me ...  none of us is wrong or not knowing...  I'm just happy that there are this many guys that actually grease the trunnions..  and coversations like this will help someone get more life out of their camel back suspension..  jojo

My thoughts exactly,bran new ok but a little worn,no way,I’ll just keep on pumping grease but I will now jack up the back axel like the book says,well at least sometimes ..lol

18 minutes ago, Joey Mack said:

What year is that book MACKS?  I like it, and hadnt seen that info before...   Thanks,, jojo

1985,so what do u think about gear oil or some other liquid type lube in there,would it even stay in and obviously any grease u pump in there will mix with it right..

6 minutes ago, mrsmackpaul said:

Well we are all learning things today 

 

Thanks for sharing that, Im guessing everyone just pulls the plug out and bunged what ever they thought was right in there

 

Paul 

It also says to jack up rear axle to remove the load on the bushing before servicing..

2 minutes ago, MACKS said:

This is what the book shows..

According to this we’re all wrong,suppose to use gear oil I guess in the end cap anyway,make any sense to anybody?

This is what the book shows..

The toughest and in my opinion the best suspension ever invented for heavy trucks,there must be something from Mack as to how to service it..

2 minutes ago, Joey Mack said:

so you didnt have a grease fitting in the saddle, and a bleeder in the cap?????  Hmm..

Grease fitting in both ..

Never had one of those on any of my five Macks, all had 58 rears and all of them had a grease fitting there,just saying.🤷‍♂️.

6 minutes ago, Triple D said:

So I've decided to go ahead and have axle surgeon come out to replace the tube . I appreciate all the insight. And yes taking the weight off is the best way to get that grease all the way around the tube and saddle.

Good for you,that’s the way to go,get it done right and don’t look back..

27 minutes ago, 67RModel said:

Am I to understand the proper way to grease a camelback is to jack up on the frame so the suspension and axles are "hanging" off the frame with no weight bearing on them, and grease that way? Or are you saying to place the jack on the A frame tube just inboard of the U bolts and jack from there until the wheels are off the ground? I truly don't know. I have always just greased with the truck sitting on the ground normally. 

Same here,if the bushings and bar are not worn what good would it do since there is zero movement plus there are grooves cut  in the bushings for the grease to flow into and move all around the bar,I just grease the chit out of mine and yes it gets past the seal and even squirts outofthe trunnion cap a little,works for me she’s tight as a drum..

Had this problem on my 12 speed,it was the o rings in the shift cylinder on top of the tranny,see if u can get an o ring kit for it before taking it apart,mine were very hard to match up,I did it twice to install the correct o rings..

Beautiful,I’m thinking 237 with a 5 or 6 speed..

2 hours ago, mrsmackpaul said:

So by looking at those two pictures above 

It looks like none of the small bits have O rings to seal them up, is this correct ?

If so I  gather this means once they are worn they go in the rubbish bin

Or is there rebuild kits and how would someone check these are or are not working as they should 

I think I might have to get my workshop manual out for these, I  have looked before many years ago but I seam to recall it was pretty vague, mind the way my head has been of late it could be I just dont remember 

It would be good to have Dynatard that actually works 

I reckon reading in the advertising blerb it was like 400 hp of braking effort on the E6, might of been the E9

Either way I reckon that should still be a lot more noticeable than just making the noise 

Paul 

Well keep us posted,would love to have a decent engine brake on my 96 cl,as I said it’s pretty useless as is..

I guess if the cam is for a dynadard a jake won’t even work,is that correct?

Dynatard brakes are pretty useless in my opinion,jake is the way to go if u can..

6 hours ago, mechohaulic said:

starting fluid ;; old school , didn't think that technic was allowed or used anymore. very light on the spray also. have to be cautious suggesting that type of test in todays world. too much or spray hitting hot exhaust will change purpose of test and fire extinguish test will take place. or inventory check on first aid kit.

Well that’s me,old school..😏

With the truck at idle spray some starting fluid on your charge air connections and hoses and pipes..

1 hour ago, tjc transport said:

my problem was the opposite. background noise blocked out close conversations.

they are currently set to block background noise around 50% so i hear everything about equal. 

What brand did u get,the over the counter hearing aids from Bose popped up on my f book feed recently,Bose always made decent stuff..🤷‍♂️

On 1/21/2023 at 2:55 PM, Joey Mack said:

I have a new project...  I have been putting it off for a while now, but it has to get done.. My awesome '97 Tacoma has cancer for the 3rd. time..  I'm trying to keep it together until I can find a donor frame to do a swap..  It has only 190,000 miles, 5spd. 4WD..  Its been a great truck..  

Wow that’s bad..

5 hours ago, 70mackMB said:

A little roadside repair.    .....Hippy

 

Wow that’s crazy..

29 minutes ago, 67RModel said:

See the attached pictures they are 8.5” to the inside edge of the profile where the wedge anchor seats. 10” overall width.

Should be stamped on the rim ..