13 g
Paul, Is there a documented solution to replace the flexplate with a
more substantial unit to avoid disintegration or cracking?
Thanks Joe Berki
Well some of people have used a steel flywheel. Dave Leonard as I
recall.
The best solution is use the stock plate with a rubber coupling.
Paul Lamar
Paul did you get a chance to publish the final CAD drawings and
files for the coupling? I might have missed it if so.
Thanks.
Scott Gettings
We have three designs. Which one do you like.?
Paul
Which ever one would be the most practical to build in a local
machine shop based on the CAD drawings, and also fit into Tracys
redrive without other modifications.
Thanks
Scott Gettings
This is the simple-est and easiest to build. The blue is just a
chunk of aluminum bar.
The stock FORD part is cut down a bit on the lathe.
Paul Lamar
Excellent, thank you. These look great. I already have the Ford
part.
A few remaining questions: So in this version, the flex
plate/isolators and the housing/Ford part are not actually bolted
together, but are simply captured and “float” between the redrive
and engine, correct? If so, do we need to assure some minimal amount
of free play between the components?
Can the aluminum housing be 2024 or does it need a higher
specification?
Are the isolators a standard silicone product or rubber bushing
stock? Same as the isolation bolt metal bushings.
BTW, do these drawings have dimensions (or files) that can be used
by my local machine shop to build the parts?
Thanks again, Paul.
Regards,
Scott Gettings
Yes.
2024 is OK.
Probably machined out of red silicon rubber block from Master Carr.
You could wrap up red silicon tape on silicon hose probably.
Paul Lamar
Might one of these work for the isolators?
https://www.mcmaster.com/unthreaded-spacers
Scott Gettings
No I would make them out of 4130 bar and have them heat treated. The
OD would be roughly the same as the metric socket head bolts, Could
be a little
Paul,
I understand 4130 for the inner part of the isolators bushing, with an ID the same as
the bolt OD. How about the flexible component of the isolators? McMaster Does not
appear to have silicone available in bushing stock, but does have these rubber isolators.
Vibration-Damping Unthreaded Spacers
Reduce vibration, shock, and noise with these spacers that compress between
components. Made of Buna-N rubber, they resist oil, steam, water, and mildew.
For technical drawings and 3-D models, click on a part number.For technical drawings
and 3-D models, click on a part number.
OD Lg. For Screw
Size ID Temperature
Range, °F Color Each
Buna-N Rubber
1/2" 1" No. 12 0.250" -65° to 200° Black 99025A120
<
https://www.mcmaster.com/99025A120 $15.80
3/4" 1" 1/2" 0.500" -65° to 200° Black 99025A125
<
https://www.mcmaster.com/99025A125 15.80
7/8" 1" 5/8" 0.625" -65° to 200° Black 99025A130
<
https://www.mcmaster.com/99025A130 16.03
1" 1" 3/4" 0.750" -65° to 200° Black 99025A135
<
https://www.mcmaster.com/99025A135 16.03
1 1/4" 1" 1" 1.000" -65° to 200° Black 99025A140
<
https://www.mcmaster.com/99025A140 18.73
Scott Gettings
Not that. Buna N is low temp.
This silicon rubber. Use a hole saw to cut blanks.
Paul Lamar
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