 Flywheel dimensions |
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| bobforman |
 Mar 7 2023, 08:16 PM
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#1
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Newbie  Group: Members Posts: 33 Joined: 7-April 09 From: Seattle Member No.: 10,242 Region Association: Pacific Northwest  |
Learned today my 2.0 flywheel has been turned at least once. Concerned about doing it again but would like to know the minimum tolerances for the offset (depth of the plate surface and the pressure plate mounting surface). Can't seem to find it in the workshop manual.
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| technicalninja |
Mar 8 2023, 10:16 AM
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Advanced Member Group: Members Posts: 2,531 Joined: 31-January 23 From: Granbury Texas Member No.: 27,135 Region Association: Southwest Region 
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QUOTE(ClayPerrine @ Mar 8 2023, 06:49 AM)  The only difference between a /4 flywheel and a /6 flywheel is the crank mounting surface. They use the exact same clutch disk and pressure plate. So the dimensions for turning a flywheel are the exact same. That's good info Clay. Thanks! So, the step between disc surface and pp mounting surface is 22.5mm or "A" in the diagram. This is the important measurement to get correct. Many times in the past I've found inaccuracies in published OEM data... Why would anyone cut the ring gear upper surface? That diagram shows different values for "B" which is the total thickness of the flywheel. In my world this figure would never change as I see no need or gain for machining the face of the ring gear, just extra cost as that would be a third cut at the machine shop. My unmachined 73 flywheel measures 40.4mm for B and the back surface is not flat as shown in the diagram. It has a small chamfer on the outer edge. |
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Posts in this topic
bobforman Flywheel dimensions Mar 7 2023, 08:16 PM
r_towle Dave has a full diagram.
Search here, it’s been ... Mar 7 2023, 08:30 PM r_towle http://www.914world.com/bbs2/index.php?showtopic=1... Mar 7 2023, 08:33 PM rjames It was suggested in that thread (and by the new fl... Mar 7 2023, 09:02 PM
ClayPerrine
It was suggested in that thread (and by the new f... Mar 8 2023, 06:49 AM bobforman Thanks much. Mar 7 2023, 09:05 PM technicalninja A good VW machine shop should know that info and w... Mar 7 2023, 10:30 PM technicalninja Just looked at that other thread.
If you are aski... Mar 7 2023, 10:49 PM |
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