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Thread Tools | Display Modes |
12-27-2020, 05:08 AM | #21 | |
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Location: Mebane NC
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Re: Printable diagram for adjusting valve tappets
Quote:
This was my first ever time installing and adjusting valves. Before installing the new valves, I backed off all 8 adjustable tappets as far as they would go. Then I put in new valves, springs, retainers, and keepers (those keepers are a tremendous pain). Then I took my initial clearance measurements, which ranged from .028 to .068. Using this adjustment guide, I was able to adjust 3 of the 8 valves to the exact desired clearance on the first pass. The remaining 5 were all +/- .001" and I got all five to the desired clearance on the second pass. |
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12-27-2020, 09:39 AM | #22 |
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Re: Printable diagram for adjusting valve tappets
a little grease on the keepers will hold them in place.
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12-27-2020, 10:13 AM | #23 |
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Re: Printable diagram for adjusting valve tappets
I used axle grease. It was mostly a pain because I was using this valve spring tool. Required a buddy to hold the spring up for me and even then I had very little room to get the keepers onto the valve stem – particularly for the 1/2/7/8 valves in the corner.
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12-27-2020, 12:34 PM | #24 | |
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Re: Printable diagram for adjusting valve tappets
Quote:
Thanks for the tip and thinking outside the box alexishai.
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Ruth "Sometimes you really DO need to read the whole thread" Last edited by Ruth; 12-27-2020 at 12:55 PM. |
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01-03-2021, 11:06 AM | #25 |
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Re: Printable diagram for adjusting valve tappets
Thanks for the link to the printable timing tapes
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04-20-2022, 07:42 AM | #26 |
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Re: Printable diagram for adjusting valve tappets
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i just cant get a "feel" for this. |
04-20-2022, 10:13 AM | #27 |
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Re: Printable diagram for adjusting valve tappets
A regular feeler gauge is all one thickness, a go-no/go gauge has a small potion up the end of the gauge which is .001" or .002" thinner that the rest of the gauge.
https://www.wonkeedonkeetools.co.uk/...o-feeler-gauge
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If you don't hear a rumor by 10 AM, start one!. Got my education out behind the barn! Last edited by katy; 04-20-2022 at 10:14 AM. Reason: Corrected typo |
12-18-2023, 01:47 PM | #28 |
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Re: Printable diagram for adjusting valve tappets
Newbie here - Okay, so the Go-No Go feeler has a smaller gauge section near the tip. How does this help?
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David in San Antonio 1930 ('31?) Deluxe "Wretched Roadster" Restored 1957 Alamo A’s Club |
12-18-2023, 02:26 PM | #29 | |
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Re: Printable diagram for adjusting valve tappets
Quote:
If the gauge stops there, you know that the gap distance is larger than the thin part but smaller than the thick part. If it goes all the way in, you know the gap is larger than the thick part, and if it doesn't go in at all, you know the gap is smaller than the thin part. The idea is that most clearances have a certain tolerance, e.g., .013-.015". A go/no-go gauge lets you quickly confirm that the clearance is somewhere within the tolerance without taking time to unnecessarily measure the clearance precisely. |
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12-18-2023, 10:50 PM | #30 |
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Re: Printable diagram for adjusting valve tappets
After you have done it a few times you will learn to recognize by the amount of slop or resistance on the feeler gauge how close you are. Frankly, the Model A is pretty tolerant to minor (say +/- 0.001") variations from "spec", in fact, depending upon the wear in the camshaft or position of the crank there may be that much slop between where you measure and true minor diameter (where the lifter is completely down). I would not obsess about it.
My $0.02 and worth at least that.
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JayJay San Francisco Bay Area ------------------------ 1930 Murray Town Sedan 1931 Briggs S/W Town Sedan |
12-19-2023, 12:03 PM | #31 |
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Re: Printable diagram for adjusting valve tappets
Thank you both.
Someone said that having a Model A provides the perfect excuse to buy tools. Not that I need an excuse, but it makes choosing easier.
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David in San Antonio 1930 ('31?) Deluxe "Wretched Roadster" Restored 1957 Alamo A’s Club |
12-24-2023, 11:23 AM | #32 |
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Re: Printable diagram for adjusting valve tappets
Looks good , think I will shrink it down print it and then laminate it .
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