CJ7 power brake change.

[Genaz]

Hi, I'm a new member and need some advice on changing my '79 CJ (258cu. 6 cyl) to power brakes. I've got the new master cylinder and power booster installed, but can't find a place to hook up the vacuum line to power booster. I

 

[CJ]

Might help: - I'll look for more.

Brake related Power Booster vacuum hose pic

I'm swapping from manual brakes to power booster assisted and don't know where the vaccum hose is supposed to go. Could, would anyone be willing to take a pic of where the stock location is on the manifold? Theres a few possibilities on the manifold, I just want it to go where the AMC...

jeep-cj.com

 

[CJ]

Two more:



AMC 232 i6 but the same hookup:

 

[TSB8C]

Those are some great pics and should answer your question. I'll just add - any manifold vacuum source, not ported vacuum source.

 

[Genaz]

Might help: - I'll look for more.

Brake related Power Booster vacuum hose pic

I'm swapping from manual brakes to power booster assisted and don't know where the vaccum hose is supposed to go. Could, would anyone be willing to take a pic of where the stock location is on the manifold? Theres a few possibilities on the manifold, I just want it to go where the AMC...

jeep-cj.com

View attachment 100682

Thanks so much! I'll see if this will work on my '79. Just curious.. What is the carb and manifold set up you have? And did you have to go for a super small aircleaner after the installation?

 

[CJ]

Thanks so much! I'll see if this will work on my '79. Just curious.. What is the carb and manifold set up you have? And did you have to go for a super small aircleaner after the installation?

The 1st image is from a member here (@rlitavecz) and he has a Howell fuel injection system. The other pictures I found on the net but the 2nd pic also has Howell fuel injection. A very common carb for a AMC 258 i6 / 4.2l is the MC 2100.

MC 2100 Setup for 258

MC 2100 Setup for 258

jeep-cj.com

As far as the air cleaner that is really a personal choice, the open air cleaner does nothing in very wet situations though. Here is a link where @hole just put a TJ air filter assembly on his 83 CJ8 which would be the same install as your 79 CJ7 .

Engine - EFI and Later Model Air Filter Housing

Been a while since I've been on the board. Moved out of state a year ago, but had to travel back to old state to finish up some work projects has eaten into my free time. Been running the K&N filter setup with MPI for many years, but its time to ditch it. I want to put a later model air filter...

jeep-cj.com

 

[Genaz]

Oh Great! Thanks for the information. This is really helping.
I found this ’79 CJ7 in a barn in Tennessee. Original owner passed away and left it to his son, who was going to fix it up. But is sat for years. You know, the usual story…