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231 rear dump exhaust manifold driver side

Discussion in 'Early CJ5 and CJ6 Tech' started by Revillamonkey, Nov 11, 2009.

  1. Nov 11, 2009
    Revillamonkey

    Revillamonkey New Member

    Missoula, MT
    Joined:
    Aug 5, 2008
    Messages:
    21
    Does anyone know where to get rear dump exhaust manifolds for the driver side of a 231 (225 really), As I am doing a power steering swap on my 67 cj 5 with Herm the overdrive guy's kit. Thanks
     
    Last edited: Dec 3, 2009
  2. Nov 11, 2009
    Daryl

    Daryl Sponsor

    Bonney Lake, WA
    Joined:
    May 25, 2006
    Messages:
    2,883
    78-85 Buicks work. I have a few but might be spendy to ship.
     
  3. Nov 11, 2009
    Revillamonkey

    Revillamonkey New Member

    Missoula, MT
    Joined:
    Aug 5, 2008
    Messages:
    21
    I may have just found one online a junk yard off a 84 cutlass, they say it's off of a 231, so it should work? Thanks anyway
     
  4. Nov 11, 2009
    davistroy

    davistroy Grasshopper

    Marietta, GA
    Joined:
    Jul 30, 2009
    Messages:
    432
    Can you post pics and a writeup of your Herm-based steering conversion? Would love to hear about it and see it.
    Posted via Mobile Device
     
  5. Nov 12, 2009
    Revillamonkey

    Revillamonkey New Member

    Missoula, MT
    Joined:
    Aug 5, 2008
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    21
    I'll see what I can do, so far getting the bolt on bracket and gear box into place is gonna be tight. Will probably update later.
     
  6. Dec 3, 2009
    Revillamonkey

    Revillamonkey New Member

    Missoula, MT
    Joined:
    Aug 5, 2008
    Messages:
    21
    Well I've finished putting in the Herm Based PS system with the 225 engine in a relatively stock CJ 5. Everything did end up fitting and working but there were a lot of mods to make it fit. Before installation one would be wise to remove the fuel pump, radiator (at least unbolt it and be able to move it towards the passenger side), exhaust manifold, and the ignition coil. To get the ford steering box in I had to lift the radiator about two inches so it would fit under it (barely). With the box in I noticed that the fan blade was going to hit the gear box so I ended up ordering a 13 inch flex-a-lite fan blade and a one inch spacer to get away from the V belt (now 2 V belts). With this done I move to the power steering pump. I used a pump from a Buick (94 Century I think) and had to fab a bracket. The bracket turned out to be one of the easiest step in the whole kit, which I'm still amazed it works correctly. It is mounted on the driver's side of the engine and uses the outer pulley off the engine to power it. The fan blades clear the outer (new) V belt by about 1/16th of an inch. I ended up moving the coil to the bar that goes from the firewall to right next to the radiator (not sure what the technical name of this bar but you get the idea). Now let's move to the steering linkage. I ended up getting a rear dump exhaust manifold off an 84 cutlass and ended up grinding some of the bottom to make it work with the linkage. The next problem was my steering column tube (probably stock) was in two pieces when when pulled out. So ended up using metal conduit (it was free, my buddy is an electrician) to replace the old tube. The diameter was close but not perfect (although we made it work). We had a hard time mounting the whole column and steering wheel as where the u-joint that connects the linkage and column would bind if the angle was too severe. This proved to be a head ache with the new exhaust manifold as it was still in the way hence the necessary grinding of the manifold. We also had to make a bracket to hold the steering column in place since we weren't using the stock tube and the column is also offset to the left to help with the u-joint binding. In retrospect exhaust headers would have been a better fit and also different engine mounts could have made more room. With all of this in place finding a high pressure hose that goes from a GM pump to a Ford box was a little difficult but Napa has something that works (16mm with o-ring and 5/16 inverted flare worked for this application). The pulley for the pump I found in the garage and have no idea of where it came from, and thank goodness that V belts come in various sizes. I have some pics and I'll try to make them available.
     
  7. Dec 3, 2009
    Revillamonkey

    Revillamonkey New Member

    Missoula, MT
    Joined:
    Aug 5, 2008
    Messages:
    21
    [​IMG][​IMG]
     
    Last edited: Dec 3, 2009
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