Noobie's 510 project

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DADZSUN
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Joined: 08 Aug 2011 18:35
Location: Ottawa, ON

Re: Noobie's 510 project

Post by DADZSUN » 07 Jun 2018 18:25

Thanks to everyone for the information. Most helpful.

New parts arrive this wknd and then I'll dive in and confirm the spacer letter and see if the new SKF bearings have a more snug fit.

Andrew, last year's bearing was on the driver's side. It's since been good once replaced and I followed Realm recommendation to apply liberal torque when tightening the lock nut. This time it's the passenger side which may too finally have finally crapped out due to insufficient tightening tq.

Stay tuned...
'72 Datsun 510 - Orange w/Watanabes & KA24E
'76 Datsun 280z - Current rebuild project

Three B's Racing
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Joined: 03 Mar 2009 11:58
Location: New Hampshire

Re: Noobie's 510 project

Post by Three B's Racing » 08 Jun 2018 04:52

DADZSUN wrote:
07 Jun 2018 18:25
Thanks to everyone for the information. Most helpful.

New parts arrive this wknd and then I'll dive in and confirm the spacer letter and see if the new SKF bearings have a more snug fit.

Andrew, last year's bearing was on the driver's side. It's since been good once replaced and I followed Realm recommendation to apply liberal torque when tightening the lock nut. This time it's the passenger side which may too finally have finally crapped out due to insufficient tightening tq.

Stay tuned...
Liberal torque to lock nut? Man you should simply be torquing it to spec. I've always shot for 225 ft/lb, the limit is 239 ft/lb then staked the nut to the shaft and have never ever had a bearing issue because the nut came loose.
"Lastnight the wife said oh boy when your dead you can't take nothing with you but your soul oh "Think"
- John Lennon

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510wizard
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Re: Noobie's 510 project

Post by 510wizard » 08 Jun 2018 07:02

As Byron stated, Loctite bearing retaining compound is the right stuff, a quick look at the Loctite catalog will get you the right bearing retainer stuff, they have different grades depending on what clearances you are dealing with. You will probably need to get it from a industrial supplier, such as Motion, Msc and not from an auto parts place. Also get the matching Loctite primer while you are at it. Clean the hell out of recess and outside bearings surface using acetone/lacquer thinner, Prime, loctite and assemble. Wait the recommended time before putting back in service.

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DADZSUN
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Location: Ottawa, ON

A clearer picture of my wheel bearing issues

Post by DADZSUN » 11 Jun 2018 16:01

Pulled everything apart this evening.

Spacer is 'B'.
WheelBearing_Spacer.jpg
WheelBearing_Spacer.jpg (35.77 KiB) Viewed 126 times
No way my micrometer can fit to measure the distance, nor could I spot a stamping on the trailing arm.
RearPassengerTrailArm.jpg
RearPassengerTrailArm.jpg (61.03 KiB) Viewed 126 times
As before the inner bearing (SKF 6202-2RS1) popped out very easy. The outer bearing however needed a punch on the inner race to knock it out.

At first everything looked fine, both bearings seemed to spin fine. On close examination however:

Inner housing looked a little more scored that the outer housing.
TrailingArm_InnerHousing.jpg
TrailingArm_InnerHousing.jpg (73.94 KiB) Viewed 126 times
TrailingArm_OuterHousing.jpg
TrailingArm_OuterHousing.jpg (44.18 KiB) Viewed 126 times
There appeared to be a little bit of heat/scoring on the spindle, specifically the inner bearing location.
PassengerAxleStub.jpg
PassengerAxleStub.jpg (94.12 KiB) Viewed 130 times
Most telling however were the outer races on the bearing themselves. The outer bearing was smooth, the inner bearing was gnared up.
SKF_OuterLeft_InnerRight.jpg
SKF_OuterLeft_InnerRight.jpg (47.95 KiB) Viewed 126 times
Looks like I'll have to use that Loctite compound you guys recommended.
PassengerAxleStub.jpg
PassengerAxleStub.jpg (94.12 KiB) Viewed 130 times
'72 Datsun 510 - Orange w/Watanabes & KA24E
'76 Datsun 280z - Current rebuild project

2DoorJim
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Location: Calgary

Re: Noobie's 510 project

Post by 2DoorJim » 11 Jun 2018 19:48

“inner bearing was gnared up.”

That bearing outer race has been held up to a belt sander, free hand style.

And edit: who was doing wtf to it?

Inner races likely spun because stack was not torqued properly. is my guess, but who knows.

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DADZSUN
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Location: Ottawa, ON

Re: Noobie's 510 project

Post by DADZSUN » 12 Jun 2018 04:50

Yeah, the more I look at it, I can't say I disagree. There's even little flat spots on the race - the 'gnaring' isn't consistent.

I'm still not sure how I ended up with it, I replaced the passenger bearings about a year and a half ago. Perhaps I was sold a previously returned bearing?

Either way I've got two (confirmed) brand new bearings. Looks like I need Loctite 620 - high temp retaining compound used in transmissions. I'm hoping there's a supplier in Ottawa so I can have the 510 back on the ground this evening.
'72 Datsun 510 - Orange w/Watanabes & KA24E
'76 Datsun 280z - Current rebuild project

Three B's Racing
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Joined: 03 Mar 2009 11:58
Location: New Hampshire

Re: A clearer picture of my wheel bearing issues

Post by Three B's Racing » 12 Jun 2018 05:49

DADZSUN wrote:
11 Jun 2018 16:01
Pulled everything apart this evening.

Spacer is 'B'.

WheelBearing_Spacer.jpg

No way my micrometer can fit to measure the distance, nor could I spot a stamping on the trailing arm.

RearPassengerTrailArm.jpg

As before the inner bearing (SKF 6202-2RS1) popped out very easy. The outer bearing however needed a punch on the inner race to knock it out.

At first everything looked fine, both bearings seemed to spin fine. On close examination however:

Inner housing looked a little more scored that the outer housing.

TrailingArm_InnerHousing.jpg

TrailingArm_OuterHousing.jpg

There appeared to be a little bit of heat/scoring on the spindle, specifically the inner bearing location.

PassengerAxleStub.jpg

Most telling however were the outer races on the bearing themselves. The outer bearing was smooth, the inner bearing was gnared up.

SKF_OuterLeft_InnerRight.jpg

Looks like I'll have to use that Loctite compound you guys recommended.PassengerAxleStub.jpg
The lettering on the swing arm is located on the backside of the bearing housing not the top. You'll likely have to remove all that built up grime to see it and hopefully it isn't corroded away. Looks to me like the bearing may have spun within the bearing housing.
"Lastnight the wife said oh boy when your dead you can't take nothing with you but your soul oh "Think"
- John Lennon

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JordanTr
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Joined: 20 Feb 2013 22:27
Location: Langley, BC, Canada

Re: Noobie's 510 project

Post by JordanTr » 12 Jun 2018 06:15

609 or 638 loctite would suffice too. +1 on the primer. Wouldn’t think you’d need high temp on the wheel bearings.

Axial clamping I.e. tightening the companion flange nut to proper torque should not be utilized to ensure the IRs stay in place. That should be solely determined by the fits and the Loctite can help get you going again.

Have you measured the shaft journals with a mic?

Good luck!!
Jordan | '72 2 door KA project | '94 240sx RB26DETT | '97 Silvia RB25DET | '90 Audi 90 Quattro 20V (DD)

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