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Belleville washer thickness?
The Belleville spring washers (.50 OD / .255 ID) that go on the upper steering shaft are missing from the pieces I got with my unfinished kit. I found them on the McMaster-Carr website (thanks to edwardb for sending me there) but there are four thicknesses listed. The choices are:
0.018
0.022
0.025
0.038
Because this is a "spring washer", I assume the thickness (height) makes a difference. What's the correct thickness to use?
Craig
10/2018 -- acquired Mk3.1 #6602 which was an unfinished project in go-kart stage; 9/2019 -- completed car enough to drive locally and compete in autocross events; still in original black gel-coat; 347 Stroker w/ Holley 650 carb, roller cam; Tremec 3550; 3.51 rear diff; lots of Breeze pieces; 2021 -- XP Champion in Central PA Region - SCCA Autocross Series; 2022 - installed windshield and registered in PA; my Build Thread -- https://thefactoryfiveforum.com/show...ished-Business
6/2022 -- acquired Mk3 #1004; finished build; 347 stroker w/ Holley 560 carb SOLD
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Senior Member
Call Factory Five, they will mail you the correct ones.
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Senior Member
Originally Posted by
FF6602
The Belleville spring washers (.50 OD / .255 ID) that go on the upper steering shaft are missing from the pieces I got with my unfinished kit. I found them on the McMaster-Carr website (thanks to edwardb for sending me there) but there are four thicknesses listed. The choices are:
0.018
0.022
0.025
0.038
Because this is a "spring washer", I assume the thickness (height) makes a difference. What's the correct thickness to use?
Edward will hopefully chime in.
If I recall his discussion on this in the past, you can adjust the thickness to help take up slack/play in the column/shaft.
But I am not sure of the FFR original part thickness.
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Not a waxer
Base to crown measures .034.
Jeff
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Senior Member
Based on my research and measuring a couple builds ago, FFR supplied Belleville spring washers are equivalent to McMaster #9712K62. https://www.mcmaster.com/9712k62. I used the next higher size #9712K63 (.038 vs .036 total thickness) and improved the fit of the collapsing column on that build. The most recent build (Gen 3 Coupe #59) use the provided washers from FFR and they worked perfectly.
Build 1: Mk3 Roadster #5125. Sold 11/08/2014.
Build 2: Mk4 Roadster #7750. Sold 04/10/2017.
Build Thread
Build 3: Mk4 Roadster 20th Anniversary #8674. Sold 09/07/2020.
Build Thread and
Video.
Build 4: Gen 3 Type 65 Coupe #59. Gen 3 Coyote. Legal 03/04/2020.
Build Thread and
Video
Build 5: 35 Hot Rod Truck #138. LS3 and 4L65E auto. Rcvd 01/05/2021. Legal 04/20/2023.
Build Thread. Sold 11/9/2023.
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Senior Member
+1 on the McMaster thicker washers.
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PM me with your address and I'll send some to you. Got a bunch from McMaster.