Tracy,
Here are the measurements of both the "ACT" and "F1" chrome-moly steel
flywheels that I have..........All measurements are from the mounting face of the
rear counterweight..........
"F1" Flywheel (11.8 lbs before any additional machine work for lightening)
(1) From counterweight to clutch disk surface 1.115 in (28.321 mm)
(2) From cter-wt to pressure plate/ring gear surface 1.100 in (27.940 mm)
(3) Flywheel thickness minus clutch disk surface 1.100 in (27.940 mm)
"ACT" Flywheels (Street-Lite 13.8 lbs/Pro-Lite 9.8 lbs before any additional machine work for lightening)
(1) From counterweight to clutch disk surface 1.111 in (28.219 mm)
(2) From cter-wt to pressure plate/ring gear surface 1.096 in (27.838 mm)
(3) Flywheel thickness minus clutch disk surface 1.096 in (27.838 mm)
Kelly Troyer
"DYKE DELTA JD2" (Eventually)
"13B ROTARY"_ Engine
"RWS"_RD1C/EC2/EM2
"MISTRAL"_Backplate/Oil Manifold
"TURBONETICS"_TO4E50 Turbo
From: Kelly Troyer <keltro@att.net>
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Sent: Thursday, September 8, 2011 6:48 PM
Subject: [FlyRotary] Re: Flywheel thickness ?
Tracy,
I will get the steel fly-wheel measurements and get back to you..............
Kelly Troyer
"DYKE DELTA JD2" (Eventually)
"13B ROTARY"_ Engine
"RWS"_RD1C/EC2/EM2
"MISTRAL"_Backplate/Oil Manifold
"TURBONETICS"_TO4E50 Turbo
From: Tracy <rwstracy@gmail.com>
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Sent: Thursday, September 8, 2011 3:20 PM
Subject: [FlyRotary] Flywheel thickness ?
Question for David, Kelly or anyone else playing with lightweight flywheels. I have one on the way but won't see it until I get back home in October. I'm working on a new design to replace the stock flex plate and need to know the thickness of the lightweight
flywheel. Every picture I see of them appears to show an almost flat disk which would imply that there is MORE room between it and the
redrive adapter plate than there is for the flex plate which has about a 1 1/4" dish in it. BUT, much of the discussion seems to imply that if anything, there is LESS.
Anyone able to tell me the actual thickness of these aftermarket lightweight flywheels?
I'm looking at the aluminum versions for weight reasons and also because the iron friction surface is removable ( for even less weight).
Tracy
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