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RX-7 2nd Gen Specific (1986-92) RX-7 1986-92 Discussion including performance modifications and technical support sections. |
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#1 |
Sigh.....
Join Date: Feb 2008
Location: Murfreesboro, TN
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Possible spindle/hub/wheel bearing damage
So here I am again, doing my part to populate the tech section.
![]() I decided to take apart my hub while redoing the whole front, might as well, right? Anyways, I found some discouraging things. There appears to be burning on the spindle, rusty grease, and some wear on the hub (if you can see it in the last picture). Is this stuff alright to reuse?
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1986 Sport: 132k miles, 5A (Sapphire Blue Metallic), Tokico Blues, Racing Beat Springs, Custom LED tailights (only S4 LED tails in the world), SSR Mark II, Racing Beat exhaust, S5 black interior, Rotary Resurrection rebuild at 120k miles Community Service Manual RotorWiki "Imagination costs nothing; we could build square locomotives or fly to Mars" - Felix Wankel Yesterday is history, tomorrow is a mystery, but today is a gift. That is why it is called the "present." |
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#2 |
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Join Date: Feb 2008
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Also, there's some wear on the washer/nut.
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1986 Sport: 132k miles, 5A (Sapphire Blue Metallic), Tokico Blues, Racing Beat Springs, Custom LED tailights (only S4 LED tails in the world), SSR Mark II, Racing Beat exhaust, S5 black interior, Rotary Resurrection rebuild at 120k miles Community Service Manual RotorWiki "Imagination costs nothing; we could build square locomotives or fly to Mars" - Felix Wankel Yesterday is history, tomorrow is a mystery, but today is a gift. That is why it is called the "present." |
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#3 |
crash auto?fix auto
Join Date: Feb 2008
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I'd scuff the spindle up with some emery cloth or ~240grit sandpaper and take the bluing off. Never seen one heated up like that
![]() Hub looks cool, but i'd definetley change the races. |
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#4 |
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Join Date: Feb 2008
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Races? Ugh... that doesn't look like a fun job. I've already got new bearings on order.
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1986 Sport: 132k miles, 5A (Sapphire Blue Metallic), Tokico Blues, Racing Beat Springs, Custom LED tailights (only S4 LED tails in the world), SSR Mark II, Racing Beat exhaust, S5 black interior, Rotary Resurrection rebuild at 120k miles Community Service Manual RotorWiki "Imagination costs nothing; we could build square locomotives or fly to Mars" - Felix Wankel Yesterday is history, tomorrow is a mystery, but today is a gift. That is why it is called the "present." |
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#5 |
RCC Addict
Join Date: Mar 2008
Location: Honolulu, Hawaii USA
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It's hard to tell if it's damage or dried grease or something else???
Clean everything up and retake the pics... I've never seen brown grease before. The bearing looks like it was sitting in rusty water! -Ted |
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#6 |
Rotary Fanatic
Join Date: Feb 2008
Location: Front Royal, VA
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The only other thing you could do is "mic" the races and spindle and see if the measurments are in spec. That is if you are really anal and have access to a micrometer or other measuring device. So get rid of the brown grease and corrosion and see how they look.
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#7 | |
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Quote:
![]() Only the grease around the top bearing (pictured) was like that. The grease down in the hub was black.
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1986 Sport: 132k miles, 5A (Sapphire Blue Metallic), Tokico Blues, Racing Beat Springs, Custom LED tailights (only S4 LED tails in the world), SSR Mark II, Racing Beat exhaust, S5 black interior, Rotary Resurrection rebuild at 120k miles Community Service Manual RotorWiki "Imagination costs nothing; we could build square locomotives or fly to Mars" - Felix Wankel Yesterday is history, tomorrow is a mystery, but today is a gift. That is why it is called the "present." |
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#8 |
My minds tellin' me no...
Join Date: Feb 2008
Location: Murfreesboro, TN
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The grease in my hub that fragged a bearing looked like that, except your hub and spindle look actually very good. Mine were destroyed when the grease failed and the bearing ate itself.
Looks like you prevented a potential failure. Score!
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1976 Mazda Cosmo RX-5 1976 Mazda Cosmo RX-5 2003 Toyota Tundra TRD 2015 Toyota 4Runner SR5 |
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#9 |
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Join Date: Feb 2008
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I went to NAPA and the races are like $3 each so I'm pretty pleased about that.
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1986 Sport: 132k miles, 5A (Sapphire Blue Metallic), Tokico Blues, Racing Beat Springs, Custom LED tailights (only S4 LED tails in the world), SSR Mark II, Racing Beat exhaust, S5 black interior, Rotary Resurrection rebuild at 120k miles Community Service Manual RotorWiki "Imagination costs nothing; we could build square locomotives or fly to Mars" - Felix Wankel Yesterday is history, tomorrow is a mystery, but today is a gift. That is why it is called the "present." |
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#10 |
Rotary Fan in Training
Join Date: Feb 2008
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The new bearings should come with new races.
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New rat from the sinking ship. |
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#11 |
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Join Date: Feb 2008
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They did. New bearings/races were like ~$55. I'll have to get 2 seals which are about $9 each. Overall, not bad.
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1986 Sport: 132k miles, 5A (Sapphire Blue Metallic), Tokico Blues, Racing Beat Springs, Custom LED tailights (only S4 LED tails in the world), SSR Mark II, Racing Beat exhaust, S5 black interior, Rotary Resurrection rebuild at 120k miles Community Service Manual RotorWiki "Imagination costs nothing; we could build square locomotives or fly to Mars" - Felix Wankel Yesterday is history, tomorrow is a mystery, but today is a gift. That is why it is called the "present." |
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