HELP! Whole Car Shakes!
06-04-15, 09:53 PM
#26
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i'm surprised no one went further into this. so i will.
did you take the flywheel off and check the woodruff key? i have had a flywheel turn 170 degrees after shearing off the key. the cause was the nut being too lose. this was a motor 7k miles after a rebuild. to it was tight for enough for break-in and some spirited driving after that, but not tight enough for hard shifts.
It sounds like you have had the flywheel off and woulda check this, but its better to ask then assume. other things have been said.. trans mount, pilot bearing/ input shaft bearing
did you take the flywheel off and check the woodruff key? i have had a flywheel turn 170 degrees after shearing off the key. the cause was the nut being too lose. this was a motor 7k miles after a rebuild. to it was tight for enough for break-in and some spirited driving after that, but not tight enough for hard shifts.
It sounds like you have had the flywheel off and woulda check this, but its better to ask then assume. other things have been said.. trans mount, pilot bearing/ input shaft bearing
06-06-15, 11:32 AM
#27
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Did you take a look at your drive shaft u joint how people mentioned before. My car doing the same thing I replaced motor mounts, transmission mount and trans mount bracenter bushing and I still had crazy vibration from my driveline I could feel it hard on the shifter. Then once I replaced the driveshaft with a new one it all went away. I checked the old driveshaft after I removed it and the front u joinst were all busted up. Check the drive shaft, remove your trans oil before you pull it out.
06-08-15, 07:47 AM
#30
well i had about 10k miles on my build, but when the woodriff key sheered it was because i had dropped the clutch from like 5k rpm on a gravel/sand road. hard to say load was a major factor, i mean it was sand and gravel.. but it was a 5k clutch dropp. soo...
06-09-15, 06:48 PM
#33
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Thanks and what size is the woodriff key?
06-10-15, 06:52 AM
#35
Keys may be available through Mazda, using the P/N in the above diagram. You can also probablly source one at a hardware store too. Woodruff Keys are sized by number, each number reflects a certain diameter and width of key. You should be able to measure the keyway with a pair of calipers. Basically, the key is just half of a diameter made to a specified thickness. The keyway is machined for a percise fit width wise, and to a depth of just slightly shy of half the diameter, so that the face of the key protrudes slightly, to provide a positive ancor to the pully, gear or in this case, flywheel to the shaft. A lot of times, the O.D. of the shaft is also tapered in the key'd area, to provide additional alignment and strength to the whole joint.
https://catalog.nordex.com/cc2273
https://catalog.nordex.com/cc2273
Last edited by Banzai; 06-10-15 at 06:58 AM.
06-12-15, 08:08 PM
#36
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Keys may be available through Mazda, using the P/N in the above diagram. You can also probablly source one at a hardware store too. Woodruff Keys are sized by number, each number reflects a certain diameter and width of key. You should be able to measure the keyway with a pair of calipers. Basically, the key is just half of a diameter made to a specified thickness. The keyway is machined for a percise fit width wise, and to a depth of just slightly shy of half the diameter, so that the face of the key protrudes slightly, to provide a positive ancor to the pully, gear or in this case, flywheel to the shaft. A lot of times, the O.D. of the shaft is also tapered in the key'd area, to provide additional alignment and strength to the whole joint.
https://catalog.nordex.com/cc2273
https://catalog.nordex.com/cc2273
06-12-15, 09:54 PM
#37
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part number is 0820-11-705, its the same for every rotary engine
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