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02-20-2017, 06:25 AM | #21 | |
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Re: Test light to confirm spark to plug?
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02-20-2017, 11:11 AM | #22 |
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Re: Test light to confirm spark to plug?
Ya know, it gets to be no fun any more if you make things too complicated. Think about this.......to be able to adjust your valves, it seems a given that you must have adjustable valve lifters. And with that being what you MUST have, you also MUST have the intake manifold removed from the engine to be able to access the adjustable lifters. With the above situation at hand, it should be SUPER SIMPLE to watch the movement of the lifters on #1 cylinder as you rotate the crankshaft. As you rotate the crankshaft in the proper direction, you can watch the INTAKE lifter approach the CLOSED (lifter down) position as the crank begins the LAST 180 degrees of rotation toward TDC of #1 piston. This last approximately 180 degrees of crankshaft rotation with BOTH valves CLOSED indicates that the compression is building-up in that cylinder with BOTH valves closed. When you get that piston to TDC (with BOTH valves CLOSED), adjust the valves on that cylinder. Visually verify BOTH valves closed at TDC.....and adjust those two valves! Move-on to next cylinder in the firing order. Does this make things any simpler..........and more funner? DD
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02-20-2017, 11:46 AM | #23 | |
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Re: Test light to confirm spark to plug?
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02-20-2017, 12:55 PM | #24 |
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Re: Test light to confirm spark to plug?
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02-20-2017, 01:14 PM | #25 |
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Re: Test light to confirm spark to plug?
Like that responce. I'm always reminded of my junior high years when all of this and more was accomplished in blissful ignorance!
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02-20-2017, 11:41 PM | #26 |
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Re: Test light to confirm spark to plug?
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I carry one (different brand) in my tool kit. Small, fool-proof and inexpensive. Curt |
02-21-2017, 02:14 AM | #27 |
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Re: Test light to confirm spark to plug?
I test the old way Take the wire end out of cap and hold 1/4" to ground. With key on turn over with starter should spark ever time for each cylinder.
The flat head is about the only engine that the valves are not adjustable. Unless they have been changed to adjustable. You want TDC when NOT firing. When you find TDC turn crankshaft 1/4 turn for each cylinder ,2 times for 8 cylinder. |
02-21-2017, 10:01 AM | #28 |
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Re: Test light to confirm spark to plug?
I believe you want TDC ON firing. Both valves are then closed.
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02-21-2017, 10:05 AM | #29 | |
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Re: Test light to confirm spark to plug?
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02-21-2017, 07:47 PM | #30 |
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Re: Test light to confirm spark to plug?
Here is what I do . . . I watch the lifters for a given cylinder. I turn the engine over by hand until I see the exhaust open, right before it closes, the intake will open - I let it come up and then back down. Once I see the intake lifter go all the way down (will be just after BDC), then I turn the crank just under a half turn (now you'll be close to TDC on the compression stroke - valves will be closed). Adjust away . . .
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