Flywheels

Unknown
Unknown
edited November -1 in HUDSON
Ned to know if the flywheels for the splasher 6, 212, and the straight 8, 254, engines are the same. Looks like the bolt pattern is the same, but what about the timing marks?

Comments

  • [Deleted User]
    [Deleted User]
    Steve, The flywheels will interchange if you switch the clutch out with them. I wouldn't reccomend using a 9" clutch on a 254 but you could do it. You could however use a 10"' clutch on a 212. You just can't use a flywheel for a 9" clutch on a 10" pressure plate. The reverse is true in addition. The 9' flywheel has a few lugs on it for the pressure plate that would get in the way of the 10' pressure plate. As far as 9'" clutches and pressure plates are concerned, you can use the 9" setup going back I believe to 1940 up to the 1954 model year. The 10" setup from 46-54 will interchange might even take the 42 flywheel I'm not sure. Good luck in any event.
  • Geoff
    Geoff Senior Contributor
    You can interhange any clutch from 1934 to 1954 inclusive, but as stated above, don't use a 9" clutch in a 8 cylinder or other than a 232 from '48 onwards. I understand that the bigger clutch was used in the '46-'47 pick-ups, and you can't use the 9" in a 232 with overdrive.
  • Unknown
    Unknown
    Not worried about the clutch fellas, going to use a 10" unit, just wondered about using a 6cyl flywheel out of a 212 on a straight 8!
  • Clutchguy
    Clutchguy Senior Contributor
    Steve, make sure that you use the correct pressure plate with the correct flywheel. There are differences starting sometime in '41. mismatched parts will cause the clutch to not work correctly and/or lock up. CG
  • Unknown
    Unknown
    Thanx for the info guys. Got a 48 straight 8 with a bad ring gear/flywheel and need to replace it. Can't tell the difference by looking at loose flywheels. Did see a difference in the timing marks tho, most have UDC 1-6 and 3 or 4 lines at the outer edge of the flywheel and others have UDC 1 placed abbout 1 inch down or closer to the center of the flywheel.
  • Unknown
    Unknown
    Follow up on the flywheel research, maybe it'll help out someone else. It would appear that the postwar engines, at least, had the markings at the edge of the flywheel, nearest the ring gear, on the 6 cyl engines and about an inch nand a half nearer the center on the eights. If this isn' the case please let me and everyone else know. Thanks.
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