vacuum lines


Rookie
Rookie

Posts: 24

Joined: Mon Aug 12, 2013 8:22 pm

Post Sat Nov 19, 2022 5:57 pm

vacuum lines

1975 IH 200 4x4 392
What vacuum lines are necessary?

Golden Jubilee
Golden Jubilee

Posts: 5160

Joined: Thu Nov 29, 2012 9:28 pm

Location: Lyman, IA

Post Sun Nov 20, 2022 9:13 am

Re: vacuum lines

All of them!
Systems that need to function are:
EGR
Vapor canister
Spark advance
Choke pull off
Vacuum controls in the cab (if used)
heated air cleaner
heat riser (if vacuum controlled)
PCV system
and likely a few more I can't think of off the top of my head.
Should be a sticker underhood showing vac line routing.

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