Valve Adjustment

   / Valve Adjustment #1  

NCMau

Gold Member
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Nov 5, 2009
Messages
293
Location
NC
Tractor
MF 202/Ford 8N
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.
 
   / Valve Adjustment #2  
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
 
   / Valve Adjustment #3  
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.
 
   / Valve Adjustment #4  
NCMau said:
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.
 
   / Valve Adjustment
  • Thread Starter
#5  
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.
 
 
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