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  1. #1
    Silver Member NCMau's Avatar
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    MF 202/Ford 8N/JD425

    Default Valve Adjustment

    Continental Z134 engine. Do you adjust the both valves to .015 cold at TDC (valves both closed, rocker arms even)?
    Just want to be sure.
    The Arc was built by a DIY team. The Titanic was built by professionals... you figure!

  2. #2
    Veteran Member
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    Mahindra 6000 MWFD, 2 1950's Farmalls, 1974 Farmall 140, 1967 Mf 135Delux

    Default Re: Valve Adjustment

    Inlet .015" Cold, .013" Hot
    Exhaust .015" Cold, .013 Hot

    Firing order 1-3-4-2......hope this helps. PS: Better to run the exhaust valve a tad more clearance than a tad too closed...on Farmall 4cly engines its .017 hot on the exhaust...and you never hear a valve click...BobG in vA

  3. #3
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    Default Re: Valve Adjustment

    Per the service manuals (available from agcopubs.com) for the Continental Z-134 and Z-145 engines, the following is the correct procedure for adjusting the valves.

    Both the intake and exhaust valve clearances should be set at .013 inch "hot", or at .015 inch "cold". The engine firing order is 1-3-4-2.

    To adjust the valve tappet clearance with the engine cold, proceed as follows:

    1. Turn the crankshaft clockwise (viewed from front) until the T.D.C. mark on the flywheel is positioned in the middle of the inspection hole and both of the rocker arms of the number 4 (rear) cylinder are "rocking" (exhaust valve closing and intake valve opening). Note: At this point, the number 1 cylinder is approximately at T.D.C on the compression stroke, with both valves closed.

    2. With the crankshaft positioned as outlined, loosen the locknuts on the rocker arms for the number 1 cylinder, and with a .015 feeler gauge between the valve stem and the face of the rocker arm, turn each adjusting screw until the correct clearance is obtained. Tighten locknuts and recheck clearance.

    3. Turn the engine crankshaft clockwise approximately 1/2 of a turn until the number 2 cylinder rocker arms are "rocking" and adjust the valve tappet clearances of the number 3 cylinder.

    4. Turn the crankshaft clockwise another 1/2 of a turn until the number 1 cylinder rocker arms are "rocking" and adjust the valve tappet clearances for the number 4 cylinder.

    5. Turn the crankshaft clockwise another 1/2 of a turn until the number 3 cylinder rocker arms are "rocking" and adjust the valve tappet clearances for the number 2 cylinder.
    .

  4. #4
    Elite Member The kid's Avatar
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    1965 135 gasser, 1967 135 diesel

    Default

    Quote Originally Posted by NCMau
    Continental Z134 engine. Do you adjust the both valves to .015 cold at TDC (valves both closed, rocker arms even)?
    Just want to be sure.
    NC, you obviously know what your doing. Bob is right on the money.

  5. #5
    Silver Member NCMau's Avatar
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    Default Re: Valve Adjustment

    Quote Originally Posted by MasseyWV View Post
    Per the service manuals (available from agcopubs.com) for the Continental Z-134 and Z-145 engines, the following is the correct procedure for adjusting the valves.
    Thanks. My skimpy manual did not outline the whole procedure.
    The Arc was built by a DIY team. The Titanic was built by professionals... you figure!

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