Bearings Reusable ?
04-26-2004, 09:24 PM
#22
Senior Member
Join Date: Jun 2003
Posts: 406
Just wondering that you guys think. My main bearing are showing about 15% copper on the front upper right side of the front bearing, and the rear lower left side of the rear bearing (looks to be inline with the water pump so i think the previous owner may have tightend it to much, thus wearing the bearing in thoose areas at startup. The front bearing also has a few (3-4) scratches in it down to the copper, like something small went through it, the scratches are small, bout half an inch long and just deep enough to barley catch a nail on them. I was going to replace these bearings but after reading this, and talking with the machine shop i was going to have them pressed in at (they said they looked ok) i might just polish them up a little and use them. Whats everyones opinion? I'll try to get pictures, but my friend has the (crappy) digi cam right now, but ill hopefully get it back this week.
04-26-2004, 10:48 PM
#23
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Join Date: Sep 2002
Location: Savannah, Ga
Posts: 2,763
Read above. Uneven wear is never good. If you dont mind the loose clearances, and have an oil system than can support it(the n/a pump cant), you can do like Lynn recommends and take the whole bearing down to the copper. If not, you should replace them.
04-26-2004, 10:52 PM
#24
Senior Member
Join Date: Jun 2003
Posts: 406
Thank you for the reply. I did read it, im more worried about the scratches as i can even it out with sand paper as suggested.. a T2 pump is planned in the near future, till then i dont mind it running low at idle. I think im going to go ahead and change them though,.. but i'm still not sure. this is gettign expencive fast and saving another 40 bux (bearings + pressing) would really help out, but not if its going to cost me the motor.
04-27-2004, 10:41 AM
#27
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Join Date: Sep 2002
Location: Savannah, Ga
Posts: 2,763
Originally Posted by RONIN FC' date='Apr 27 2004, 09:05 AM
Lynn, Would the MFR bearings have less of this "overlay" when compared to the REW bearings?
04-27-2004, 10:32 PM
#28
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Join Date: Jan 2004
Location: Central Ohio (Hebron) Zephyrhills Fla.
Posts: 1,322
Originally Posted by FD3S_wanted' date='Mar 28 2004, 10:34 AM
I'm in the process of rebuilding my engine. And my question is should I reuse my main and rotor bearings. I searched a lot on that subject and it seems to be better to use used bearings than new ones on a rotary engine.
On some bearing I can see a little copper, but not that much about 5-10 % of the bearing. Also I can see different gray color, some place it's light gray some other it's darker gray.
What do you think should I reuse them or replace them ?
Thanks for help guys!
On some bearing I can see a little copper, but not that much about 5-10 % of the bearing. Also I can see different gray color, some place it's light gray some other it's darker gray.
What do you think should I reuse them or replace them ?
Thanks for help guys!
Lynn E. Hanover
04-27-2004, 10:53 PM
#29
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Join Date: Oct 2003
Location: Boston Ma.
Posts: 1,420
Originally Posted by mazdaspeed7' date='Apr 27 2004, 07:41 AM
REW bearings have more clearance than the MFR bearings.