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V6 Engine Angle

Discussion in 'Early CJ-5 and CJ-6 Tech' started by rejeep, Apr 15, 2018.

  1. Apr 15, 2018
    rejeep

    rejeep Sponsor Sponsor

    Rochester, NY
    Joined:
    Nov 5, 2009
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    1,372
    working on the drivetrain angles in my project....
    What’s the stock engine angle in a cj5/6 and where is the best place to get a measurement...
    Stock manifold carb base seems logical, but isn’t it angled itself..
     
  2. Apr 16, 2018
    Steve's 70-5

    Steve's 70-5 Member

    Louisville, Ky
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    Nov 12, 2009
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    731
    I guess you are starting with the frame level? My questions is, what part of the frame do you use to level it?. Depending on how you frame sets, this will determine drivetran angles.
     
  3. Apr 16, 2018
    timgr

    timgr Jeepin' Nerd Sponsor

    Medford Mass USA
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    Aug 10, 2003
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    18,911
    I would call the cowl level, or the frame under the doors. Usually you put an angle finder on the carb base and position the engine with the back end tilting a few degrees down. The valve covers will be parallel to the crank, if the carb base is angled.
     
  4. Apr 16, 2018
    Keys5a

    Keys5a Sponsor Sponsor

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    I'm assuming this is for the Landy? Get a level measure off a horizontal frame member or rocker panel if the body is together, then tilt the engine nose up 2 or 3 degrees. Some intake manifolds have this angle in the carb base, otherwise, take the angle across the valve cover.
    -Donny
     
  5. Apr 16, 2018
    rejeep

    rejeep Sponsor Sponsor

    Rochester, NY
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    Nov 5, 2009
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    it is for the Land Rover..
    I have some drivetrain angles I have to work through before I find my ideal transmission mount..

    I figured if I get a good "factory" angle on the V6 and possible pinion, I can start there..
    why reinvent the wheel..

    I figured the oil pan would be best bet for the motor.. the Rover rear end has flat bump stop pads.. I have the old DS to throw in there temporarily..
     
  6. Apr 16, 2018
    Keys5a

    Keys5a Sponsor Sponsor

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    I always try to match the engine/transmission shaft angle to the pinion angle, making them parallel (or at least close).
    Then the front pinion angle can be a challenge.
    I often set the engine mounts to keep the fan high enough to cover nearly all the radiator and clear the front axle, then mock a trans crossmember in, using the rubber mount I intend to use. I then start stacking/removing washers or other spacers under the mount to set the engine angle I'm shooting for. It does help to have the rear axle under the vehicle to help determine the ideal angles.
    -Donny
     
  7. Apr 16, 2018
    Rich M.

    Rich M. Member

    Maryland
    Joined:
    Mar 23, 2008
    Messages:
    351
    Frame level 3-5 degrees is acceptable. My offy intake is factory machined to be level with just shy of 5 deg. slope. More than that and you can have rich/ flooding issues with back cylinders. I also agree about keeping pinion in consideration.
     

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