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04-20-2012, 12:52 AM | #1 |
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pressure plate options Q...
Anyone using a 'diaphram' type pressure plate in a model A/B? Any problem and/or benefits to it over, say...ford with counter weights?
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04-20-2012, 04:46 AM | #2 |
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Re: pressure plate options Q...
What are you looking for in a different plate? Better clamp? Less pedal pressure? You know the 8BA used a 10" clutch and plate to match. The small block Chevy used a 9/10/11" clutch and plate to match. I think Joe Way uses the diaphram plate in his conversion as could I.
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04-20-2012, 05:21 AM | #3 |
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Re: pressure plate options Q...
The advantage I see in a diaphragm clutch is that there is less pressure required to hold the clutch fully disengaged. I see this as an advantage in less foot pressure and therefore easier on our old knees, and less pressure on the crankshaft thrust bearing.
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04-20-2012, 05:42 AM | #4 | |
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Re: pressure plate options Q...
Quote:
I'm OK with my Model A stock clutch, but I must say that when I drive my friend's 49 Chevy pickup, that cluch is a real pleasure to operate, and I wish it was in my Model A. |
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04-20-2012, 07:05 AM | #5 |
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Re: pressure plate options Q...
I never hold the clutch even waiting at a light. Holding the clutch in puts pressure on the rear thrust and will deteriorate it sooner than just shifting to neutral.
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04-20-2012, 10:21 AM | #6 |
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Re: pressure plate options Q...
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04-20-2012, 01:05 PM | #7 | |
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Re: pressure plate options Q...
Quote:
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04-20-2012, 01:21 PM | #8 | |
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Re: pressure plate options Q...
Quote:
Observation POSITIVES: regarding diaphram type vs finger(s) type. I'm not an engineer, but common sense tells me that the 'multiple' contacts of a diaphram pressure plate would be easier on the throwout bearing(i.e.-distrubuting force); would provide better mechanical advantage(ergo less leg power necessary), more even pressure/less wear on clutch disc. Negative: the 'counter weights' on the three finger pressure plate provide MORE pressure (centrifugal force) on the disc...as rpms increase. Better clamping force? Whereas , diaphram type doesn't have counter weights. Am I wrong in my observations? |
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04-20-2012, 01:25 PM | #9 |
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Re: pressure plate options Q...
I have thought about this. Here is a link to a post by Joe Way.
LINK http://originalmodelaparts.com/DiaphragmClutch.htm |
04-20-2012, 01:29 PM | #10 |
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Re: pressure plate options Q...
I have one of the diaphram type PP going in my rig this weekend.
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04-20-2012, 01:37 PM | #11 |
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Re: pressure plate options Q...
OK! So WHAT IS THE MAKE/MODEL #, eh or is that secret of speed stuff !
Oooops, forgot to mention that my installation will be on a B engine..if that matters, not A setup. Last edited by hardtimes; 04-20-2012 at 01:40 PM. Reason: ... |
04-20-2012, 02:00 PM | #12 | |
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Re: pressure plate options Q...
Quote:
Thanks for that! Interesting reading! |
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04-20-2012, 02:08 PM | #13 |
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Re: pressure plate options Q...
Previous thread on this subject:
https://www.fordbarn.com/forum/showth...late&showall=1 Picture of the PP I'm installing is #28 on the above thread. Last edited by CarlG; 04-20-2012 at 02:14 PM. |
04-20-2012, 05:06 PM | #14 | |
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Re: pressure plate options Q...
Quote:
Yeah, that's what I'm thinking about! Thanks And, thanks for the PM. |
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