eccentric shaft corrosion pits?
#1
No wankel= no man
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Location: Woodland ca.
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eccentric shaft corrosion pits?
i noticed something recently during my rebuild that i didn't before, my eccentric shaft has a little bit of corrosion or a very small chip on it where the rear stationary gear bearing fits over it. it looks like it is located where the oil flow channel area of the bearing would be (i can see the oil channel stain on the e-shaft). but it is about the size of a metal tip of a ball point pen in terms of its area, and it isn't deep but it feels rough when i run my fingernail over it. My pics are horrible because my camera sucks (there are two areas that are a bit rough: the dark stain on the left is a small chip but it is very small and you can barely feel it. the chip im worried about is the mark to the right).
is there anything i can do about this? is it fixable? or am i forced to get another e-shaft less i risk any damage? (or raise risk of spinning a new rear bearing im putting in?
i guess i should say that i haven't seen any bad wear on my bearings that this could have caused. although what prompted me to do this rebuild was low compression and a screeching/chirp sound when i would step on the gas abruptly or go to higher rpms while driving (it would get progressively louder).
Last but not least, if you recommend getting an e-shaft, where is a good place to spend the dough? without killing my wallet
i'm surprised my car hasn't given me Grey hairs yet lol
is there anything i can do about this? is it fixable? or am i forced to get another e-shaft less i risk any damage? (or raise risk of spinning a new rear bearing im putting in?
i guess i should say that i haven't seen any bad wear on my bearings that this could have caused. although what prompted me to do this rebuild was low compression and a screeching/chirp sound when i would step on the gas abruptly or go to higher rpms while driving (it would get progressively louder).
Last but not least, if you recommend getting an e-shaft, where is a good place to spend the dough? without killing my wallet
i'm surprised my car hasn't given me Grey hairs yet lol
#3
TANSTAFL
iTrader: (13)
i noticed something recently during my rebuild that i didn't before, my eccentric shaft has a little bit of corrosion or a very small chip on it where the rear stationary gear bearing fits over it. it looks like it is located where the oil flow channel area of the bearing would be (i can see the oil channel stain on the e-shaft). but it is about the size of a metal tip of a ball point pen in terms of its area, and it isn't deep but it feels rough when i run my fingernail over it. My pics are horrible because my camera sucks (there are two areas that are a bit rough: the dark stain on the left is a small chip but it is very small and you can barely feel it. the chip im worried about is the mark to the right).
is there anything i can do about this? is it fixable? or am i forced to get another e-shaft less i risk any damage? (or raise risk of spinning a new rear bearing im putting in?
i guess i should say that i haven't seen any bad wear on my bearings that this could have caused. although what prompted me to do this rebuild was low compression and a screeching/chirp sound when i would step on the gas abruptly or go to higher rpms while driving (it would get progressively louder).
Last but not least, if you recommend getting an e-shaft, where is a good place to spend the dough? without killing my wallet
i'm surprised my car hasn't given me Grey hairs yet lol
is there anything i can do about this? is it fixable? or am i forced to get another e-shaft less i risk any damage? (or raise risk of spinning a new rear bearing im putting in?
i guess i should say that i haven't seen any bad wear on my bearings that this could have caused. although what prompted me to do this rebuild was low compression and a screeching/chirp sound when i would step on the gas abruptly or go to higher rpms while driving (it would get progressively louder).
Last but not least, if you recommend getting an e-shaft, where is a good place to spend the dough? without killing my wallet
i'm surprised my car hasn't given me Grey hairs yet lol
I would get a new shaft because:
-cheap, easy to come by (new, used on forum)
-when you slide the new bearing over the rough spot during assembly, it will damage the surface of the bearing if there are any high points
-surface finish and pitting affects the strength of the shaft (probably negligible in this case, though)
-peace of mind
if you really don't want to get another, verify that it is indeed in the oil channel, then wet sand it to bring down any high spots and test to see if it scrapes the old bearing when you slide it on there... then be sure to report back if it fails so everyone knows not to do what you did.
#4
Sharp Claws
iTrader: (30)
if it is that minor i just polish it with 1200 grit sandpaper then go over it with some mag wheel polish and then wipe it clean with some carburetor cleaner(the polish is corrosive if you leave it on). i do have some used shafts for $45 each if you don't choose to use it. when sanding though make sure you work it around 360 degrees and do not sand in just one spot, a lathe works best but of course not everyone has one.
#5
No wankel= no man
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hmm
45 bucks eh? ok i'll give you a call tomorrow and see when a good time will be to come over to the shop and get one. i don't think i want to risk having to strip down the engine again.
#6
Grand Poobah of Torque
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Yea, I still have an e-shaft sitting in my garage from my last FD engine. I use to think it was something special until I tried to sell it... (lol) Now it is just a conversation piece that takes up shelf space.
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