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09-05-2013, 08:35 PM | #21 |
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Re: TDC -- Top Dead Center -- Timing Pin ???
H L, I'm confused by your description of checking TDC. Did you mean to average the readings on a degree wheel either side of TDC when the indicator returns to 0? TDC is the highest point of piston travel. Ron W
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09-05-2013, 09:21 PM | #22 |
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Re: TDC -- Top Dead Center -- Timing Pin ???
Yo Bill, All of mine sez Chick ah lunk ah- chick ah lunka- chick ah lunka with the spark fully retarded. I guess mine has a southern accent. I spose the ones on the left coast have their own accent. Never thought about that afore. Wonder iffen you moved back to Oklahoma it would develope a hokie pokie okie sound?
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09-05-2013, 10:00 PM | #23 |
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Re: TDC -- Top Dead Center -- Timing Pin ???
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09-05-2013, 10:38 PM | #24 |
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Re: TDC -- Top Dead Center -- Timing Pin ???
Great tutorial for "I've tried everything but it still won't run right".
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09-05-2013, 10:54 PM | #25 | |
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Re: TDC -- Top Dead Center -- Timing Pin ???
Quote:
In OKLAHOMA, Chief used to say, that they said, "CADILLAC AH-CADILLAC AH-CADILLAC AH-CADILLAC AH" We NEVER saw a CADILLAC, WE JIST HURD about them! NO! I'm NOT gonna' do a research trip to OKLAHOMA, to hear how they sound like there! Bill W.
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09-06-2013, 02:07 AM | #26 |
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Re: TDC -- Top Dead Center -- Timing Pin ???
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Some manuals indicate using the dial caliper I mentioned & used, & some indicate using a piston stop plate fixture whereby both function similarly. If one is interested, one can read details about TDC & see illustrations on how to find "exact" Model A TDC with a degree wheel & a piston stop plate on page 1-39 of Volume II of "Model A Ford Mechanics Handbook" by Mr. Les Andrews. What happens is when an engine crankshaft is slowly rotated CW the piston first reaches a high point BTDC & moves no higher; however, the crank still turns a few "CW degrees" before the piston begins to descend; "and" when the crank is slowly rotated CCW the piston again first reaches a high point ATDC & moves no higher; however, the crank still turns a few "CCW degrees" before the piston begins to descend. As one can witness, the few "CW degrees" measured on a degree wheel are usually equal to the "CCW degrees" measured on a degree wheel & that the exact TDC occurs at a mid-point between the BTDC degree reading & the ATDC degree reading. Hope this helps. Last edited by H. L. Chauvin; 09-06-2013 at 07:36 AM. Reason: typo |
09-06-2013, 06:24 AM | #27 |
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Re: TDC -- Top Dead Center -- Timing Pin ???
Not sure who made them, but I found they were off when building engines back then. I always check the gears against a nos gear. The ones I have used in the last few years seem to be good. If you have a old one, I would check it before use.
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09-06-2013, 10:44 AM | #28 | |
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Re: TDC -- Top Dead Center -- Timing Pin ???
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09-06-2013, 12:16 PM | #29 | |
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Re: TDC -- Top Dead Center -- Timing Pin ???
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Gregg always had trouble comprehending the MALE/FEMALE pipe fitting thing, until Chief made a simple gesture with his fingers!! "AAH! I got it"!! Bill W.
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09-06-2013, 03:24 PM | #30 | |
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Re: TDC -- Top Dead Center -- Timing Pin ???
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