Guest bshelden Posted October 25, 2011 Share Posted October 25, 2011 How do I adjust mechanical lifters? Can't find anything in the Buick shop manual. I've followed a few articles but haven't had any luck. My car is now not running so I must do the initial adjustment with the engine cold.Thank you..:confused: Link to comment Share on other sites More sharing options...
Guest emonce Posted November 5, 2011 Share Posted November 5, 2011 I'm doing the same thing with my 41 248 motor - newly rebuilt.When the motor is running, the valves are to be set at .015. I'm going to start by setting mine cold at .018.Turn the motor over until #1 intake valve closes. As it does, look for the timing mark on the flywheel through the flywheel cover on the lower passenger side of the motor. With the timing mark at TDC, you should be at TDC with both valves fully closed on the #1 piston. Do the set of valves noted below first. Then do the same thing with the # 8 cylinder as noted below. No 1 cylinder is in the firing position adjust the following valves, cyl#1 intake,exhaust, cyl#2 exhaustcyl#4 intake exhaustcyl #6 intake, exhaustcyl#7 intakerotate the engine to No 8 cylinder firing position and adjust the following valves.cyl#2 intakecyl#3 intake exhaust cyl#5 intake exhaustcyl#7 exhaustcyl#8 intake exhaustBefore you try to start, it helps to use a 1/2 drill with the proper tool to turn the oil pump over to oil prime the engine. This is done through the distributor hole in the block. That way you know everything has a film of oil present before the actual start.When you put the distributor back in, put your motor back on TDC for # 1 cylinder and make sure the distributor rotor is also ready to fire #1. Recheck that the spark plug wires are in the order below.Firing order 1-6-2-5-8-3-7-4Once you have it running decently, you can reset the lash to .015, where it is supposed to be.Good luck - let us know how it goes.....Eric Link to comment Share on other sites More sharing options...
Guest bshelden Posted November 8, 2011 Share Posted November 8, 2011 Hi,Thank you for replying. I followed your instructions and now have a running motor. Sounds great!Hope your project is going well.Thanks, Link to comment Share on other sites More sharing options...
okiejoe86 Posted April 5, 2022 Share Posted April 5, 2022 This is an older thread, but does this adjustment work on a 1940 Studebaker inline 8? -Joseph Link to comment Share on other sites More sharing options...
Ben Bruce aka First Born Posted April 5, 2022 Share Posted April 5, 2022 Is the firing order the same? Ben Link to comment Share on other sites More sharing options...
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