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modok
Samba Member
Joined: October 30, 2009
Posts: 26785
Location: Colorado Springs
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 Posted: Fri Jan 26, 2018 7:12 pm Post subject: Re: new main bearing with copper color |
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They quit making the good rod bearings for 780p VW 1600 and 610p 2" buick, and stock is depleted.
What good would main bearings do if we don't have rod bearings?? 
Those rod bearings fit 50 million engines, but I guess there is no demand???? |
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raygreenwood
Samba Member
Joined: November 24, 2008
Posts: 21513
Location: Oklahoma City
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| Posted: Fri Jan 26, 2018 7:43 pm Post subject: Re: new main bearing with copper color |
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The question that,did not get answered....which is why I was hoping your contact with the mfg would yield more than just new set of bearings foe you.....is.....were those bearings SUPPOSED to be copper on the outer surface....or were they missing a layer.....bscause.....as I posted pages back...factually....there have been and still are bearings made with an outer copper layer.
Would be nice to know if it were a,mistake.....or for a different application. Ray |
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motomwo
Samba Member
Joined: February 10, 2017
Posts: 263
Location: Oregon
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| Posted: Sat Jan 27, 2018 8:30 am Post subject: Re: new main bearing with copper color |
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| raygreenwood wrote: |
The question that,did not get answered....which is why I was hoping your contact with the mfg would yield more than just new set of bearings foe you.....is.....were those bearings SUPPOSED to be copper on the outer surface....or were they missing a layer.....bscause.....as I posted pages back...factually....there have been and still are bearings made with an outer copper layer.
Would be nice to know if it were a,mistake.....or for a different application. Ray |
Ray,
One of the tech guys I spoke to at Mahle told me I could run that bearing. The pictures I posted at the beginning don't show it very well but there is a grayish tint in the copper. What he (the tech guy) said was the copper showing is due to some kind of oxidation or a patina showing through due to it was an old unused bearing that was exposed to high humidity. I decided not to try it in my all new 2127 motor I am building. Sorry I didn't share that info earlier and glad you brought it back up.
Marty
_________________
1961 Bug, 2276 cb wedge ports 44x37 11.1 comp fk10 1.5 rockers 48idf's 1 3/4" header Rancho pro street trans SAW axles Airkewld 4# narrowed beam, Koni shocks, Airkewld dis brake all around. 5.5/4.5 BRMs
1966 Bug, 2127, panchito heads, fk8, 1.3 rockers, dual 44idfs, 1 5/8 merge header, Rancho pro strt flyer, empi axles, Airkewld's 4" beam and discs all around and adjustable shocks. 4.5 & 5.5 BRMs |
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raygreenwood
Samba Member
Joined: November 24, 2008
Posts: 21513
Location: Oklahoma City
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| Posted: Sat Jan 27, 2018 9:34 am Post subject: Re: new main bearing with copper color |
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| motomwo wrote: |
| raygreenwood wrote: |
The question that,did not get answered....which is why I was hoping your contact with the mfg would yield more than just new set of bearings foe you.....is.....were those bearings SUPPOSED to be copper on the outer surface....or were they missing a layer.....bscause.....as I posted pages back...factually....there have been and still are bearings made with an outer copper layer.
Would be nice to know if it were a,mistake.....or for a different application. Ray |
Ray,
One of the tech guys I spoke to at Mahle told me I could run that bearing. The pictures I posted at the beginning don't show it very well but there is a grayish tint in the copper. What he (the tech guy) said was the copper showing is due to some kind of oxidation or a patina showing through due to it was an old unused bearing that was exposed to high humidity. I decided not to try it in my all new 2127 motor I am building. Sorry I didn't share that info earlier and glad you brought it back up.
Marty |
Mmmmm.....not a very accurate answer you got from that "tech"....but thank you for going back to it! The outer coatings they typically put on bearings.....tin or lead/tin.....would not simply oxidize away without leaving considerable white residue. And....if there were oxidizing going on....the copper would not have been anywhere near that color. It would have been at best.....dark penny colored or going green.
But I do agree that if they were still the right size there was probably no reason you could not have used them. There are bearings made with outer copper layers.
I am betting as you noted that there was some visible gray coating....that they were simply not coated completely and they got missed by QC. Ray |
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AlteWagen
Troll
Joined: February 23, 2007
Posts: 8501
Location: PNW
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AlteWagen
Troll
Joined: February 23, 2007
Posts: 8501
Location: PNW
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| Posted: Mon Apr 16, 2018 8:08 pm Post subject: Re: new main bearing with copper color |
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Got the bearings today, havent measured them yet but thought Id post pics for you all. Pretty disappointed that they are made in china vs. mexico but maybe it means the rod bearings could come back? In the hand edges feel rough compared to regular mahle or KS, weird copper sheen under certain lighting but overall standard aluminum color. #2 bearing is still steel backed fortunately.
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modok
Samba Member
Joined: October 30, 2009
Posts: 26785
Location: Colorado Springs
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| Posted: Mon Apr 16, 2018 8:14 pm Post subject: Re: new main bearing with copper color |
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Clevite made in china WHAAAT? 
The latest clevite catalog does list oversize OD main bearings for the first time ever. There are numerous mistakes in the specifications.... which really made me wonder..... what they were UP to. Now I know. Looks ok from here.
THANKS for the pics. |
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motomwo
Samba Member
Joined: February 10, 2017
Posts: 263
Location: Oregon
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| Posted: Mon Apr 16, 2018 8:44 pm Post subject: Re: new main bearing with copper color |
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Please do keep us posted as to how the new clevites measure/fit.
Marty
_________________
1961 Bug, 2276 cb wedge ports 44x37 11.1 comp fk10 1.5 rockers 48idf's 1 3/4" header Rancho pro street trans SAW axles Airkewld 4# narrowed beam, Koni shocks, Airkewld dis brake all around. 5.5/4.5 BRMs
1966 Bug, 2127, panchito heads, fk8, 1.3 rockers, dual 44idfs, 1 5/8 merge header, Rancho pro strt flyer, empi axles, Airkewld's 4" beam and discs all around and adjustable shocks. 4.5 & 5.5 BRMs |
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pharos
Samba Member
Joined: March 05, 2009
Posts: 309
Location: Egypt
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| Posted: Fri Jan 15, 2021 5:07 am Post subject: Re: new main bearing with copper color |
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| modok wrote: |
Clevite made in china WHAAAT?
The latest clevite catalog does list oversize OD main bearings for the first time ever. There are numerous mistakes in the specifications.... which really made me wonder..... what they were UP to. Now I know. Looks ok from here.
THANKS for the pics. |
Can you please share the link of clevite catalog
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modok
Samba Member
Joined: October 30, 2009
Posts: 26785
Location: Colorado Springs
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pharos
Samba Member
Joined: March 05, 2009
Posts: 309
Location: Egypt
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bugguy1967
Samba Member
Joined: January 16, 2008
Posts: 4341
Location: Los Angeles, CA 90016
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| Posted: Fri Jan 15, 2021 1:38 pm Post subject: Re: new main bearing with copper color |
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They're not worn. Put em in your case, torque it, and measure. Like everybody is supposed to do...
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bugguy1967
Samba Member
Joined: January 16, 2008
Posts: 4341
Location: Los Angeles, CA 90016
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| Posted: Fri Jan 15, 2021 1:39 pm Post subject: Re: new main bearing with copper color |
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| bugguy1967 wrote: |
| They're not worn. Glycos had exposed copper. Doesn't mean it's bad. Probably some of the best ever. Put em in your case, torque it, and measure. Like everybody is supposed to do... |
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"A petrol engine can start readily, run smoothly and give every appearance of being in good order, without necessarily being in good tune." - Colin Campbell, "The Sportscar Engine" |
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