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#1 |
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It fires right up, runs well, has 19.5" of vacuum, and accelerates as strong as I feel it should being my first flathead. Before I started the motor for the first time I lined the pointer and pulley mark up and the rotor was pointing right to #1. It fired up almost instantly after sitting for 4 years.
Anyway, on to my question. I hooked the timing light up to it yesterday. While the motors idling at about 575 RPMs, the bb that's pressed into the crank pulley is about an inch past the pointer. According to everything I read it should line right up at idle. Is it ion the right spot or what? Update... I disconnected the advance and the BB moved even further clockwise from the pointer. I loosened the bolt for the distributor hold down clamp and rotated it counterclockwise and got the BB dead in line with the pointer. The motor picked up rpm, smoothed out like crazy and my vacuum went to 20 on the dot. I took it for about a half an hour drive which is the longest I've driven it so far and the temp stayed between 175 and 180 the entire time even sitting at stoplights. I shut it down for about 10 minutes I touched the carb and it was warm but I didn't have to pull my hand right off like I did yesterday so I'd say all is good. I appreciate everybody's input Last edited by CJStefan; 07-18-2024 at 10:40 AM. |
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#2 |
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Did you disconnect the vacuum line from the distributor?
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#3 |
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I didn't. I was thinking the vacuum advance didn't kick in until 800 rpm or so. Should I retry with it disconnected?
Just to clarify for my own knowledge, the pulley mark should be before the pointer if it's advanced and after if it's retarded, or is it the opposite? Last edited by CJStefan; 07-17-2024 at 03:11 PM. |
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#4 |
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In the Ford Service Manual under time ignition the first
sentence says disconnect vacuum line. |
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#5 | |
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As far as what I'm thinking, am I correct or incorrect that with the timing Advanced the BB would be before the pointer and with the timing retarded it would be after the pointer every time the timing light lights up with the Clockwise engine rotation? |
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"It don't take but country smarts to solve the problem" (Smokey Yunick) '41 Merc Town Sedan / 260" 8CM engine '66 Fairlane four door / "warmed up" ![]() |
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#7 |
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So my timing is severely retarded. I'm not even sure how it runs and it seems to be pretty smooth
Last edited by CJStefan; 07-17-2024 at 05:53 PM. |
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#8 |
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You guys happen to know the diameter of the 8BA crank pulley?
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#9 |
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To clarify the language of "before" and "after" the pointer. On an 8BA you are looking at the pointer directly beside the distributor. The pointer should be on the "dot" at idle. If the pointer is pointing to the top of the pulley from the dot , the timing is advanced. The engine is rotating counter clockwise when viewed from the driver seat, so the timing light will fire to the top side of the dot when timing is BTDC . If I recall correctly the pulley is 6 1/8".
Last edited by 40cpe; 07-17-2024 at 09:39 PM. |
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Here's a photo of my '50 showing about 2 degrees advanced from the dot at idle. If I rev the engine, the dot moves down as more advance takes place.
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#12 | |
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You are correct! Don't let anyone tell you otherwise.
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"It don't take but country smarts to solve the problem" (Smokey Yunick) '41 Merc Town Sedan / 260" 8CM engine '66 Fairlane four door / "warmed up" ![]() |
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#13 |
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#15 | |
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...And there you go, just like it should be. Well done. ![]()
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"It don't take but country smarts to solve the problem" (Smokey Yunick) '41 Merc Town Sedan / 260" 8CM engine '66 Fairlane four door / "warmed up" ![]() |
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