Jump to content

air and electrics going to '80 Mack 6 speed ?

Recommended Posts

i recently aquired a 1980 mack engine and tranny (6 speed 2 stick) and it has an air line coming from the intake manifold via the puffer valve. it also has 2 wires hooking on some object on the housing that operates hi-lo-reverse. what could these be for?

Link to comment
Share on other sites

I had a 1980 Mack with 300+. I'm going to say the 2 wires are for the reverse lights circuit on the transmission.

As for the puffer valve air lines, mine was unhooked, did they not need the turbo manifold pressure to reach a certain psi before full fuel was given? I'm thinking that is what the purpose of the air line

Link to comment
Share on other sites

  • 2 weeks later...

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

  • Recently Browsing   0 members

    • No registered users viewing this page.
  • Create New...