Joey Mack

Coca Cola???   Really ????? you can do better than that..    

remove the speed sensor and see if its cracked. when you put it back in, go all the way in lightly touching the tone ring, then back it out 1 full turn.  ohm the sensor and post the reading. I will check it in the book, im busy, so I may be slow to respond..  

https://photos.app.goo.gl/AHKrmPRucm8eYgVj8...  I have dia grams in my shop but cant get to them right now..  they are large Mack printings.  However, you should be able to use the info I posted to find the wire(s)..  Jojo

check my link..  i have more pics to send

https://photos.app.goo.gl/bHfxdEwquA84j1n16

tell me if the linky no worky..

what chassis do yuo have? i assume CH-613...  I am trying to post pictures, I have to creat a link.  my new phone is not too smart

all good, you have V-MAC I...

Do you have a duetch plug on the back of the injection pump? Another way to tell, is when you turn the engine off, does all of the dash power turn of instantly, or is there a 7 second delay?

The 45 degree fitting is a regulator, 80 PSI..

bad engine mounts???   Nite Nite Birthday Boy !!   luv u Bud..  Jojo

Well,  my go to on these issues is to check the valve adjustment.   

Mech,, your the teacher...  I'm just trying to be an astute student of your knowledge..  My goal is to impress you..  just sayin'..   

oil leak passed an o-ring in the engine brake heads celenoid.. with the higher oil pressure.   FJH, Mech??  what say you? 

J.J.N.    I think we are related    we seem to think the same way on this subject..  jojo

I may, i can look in my V-MAC II book after work..

    dont replace the EUP's..!!!!   check the engine wire harnes first..  the wires at the EUP's  are bent around the EUP, and the insulation cracks open..  Please take the time to remove the EUP wires and inspect them for cracks..  EUP's are tough...  

Carbs are soft, you can hand ream it and press or tap in new bushings coated with sleeve retainer..  of course finding bushings may be an issue..  

G W,, its a Carter BBR-1..  I rebuilt it last year. O'Reilly carb kit P/N.15021B

I switched to Brake clean..  it changes the engine speed either way, up or down..  ether seems to be different..  I'm with you MarkT

👍

yes to buzzer box, the rope is a home made hand throttle. the other linkage to the rear a bit is the real secondary hand throttle..  ditch the  rope.. do you still have the 'T' handle in the dash below the speedo? 

The sharp ears tells me they go back 40+ years. I dont know when the smooth ears came out.

Mech,  thats where I remember the buzzer to be.  on the back of the triangular gusset above the clutch pedal..  I do know that in the 90's RD models and newer that I have worked on, it's name was changed to a Multi Buzzer.. it was so loud when using turn signals, that all of the drivers in my fleet would un-plug them.. then I would plug them back in when they were in my shop for the next PM.. The DOT Man doesnt like it when they are un-plugged..