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Hi Guys, Sorry this is my first post, but I was recommended this place by my brother, after my spectacular fail at the first hurdle. I brought a set of rods from a early 1uz after many motnhs of perving. Now they have arrived and i've inspected them, they are showing alot of dark discolouration that to me look like they have come from and engine with spun shells. The markings look quite bad in the photos, but running my nail over them i cant feel any imperfections. My thoughts are they are from a spun engine and been machined back as much as possible, but still showing heat marks. Or they were caught early. They also seem to have honing marks and numbering which would make me think they have been worked on. I'm trying to find how ( either buy the tools or take to my local machine shop) i can measure them to check for roundness, or see if they are over size, but would much appreciate any input. I've attached pictures of the worst looking one.
   Cheers Chris |
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Last Edit: May 5, 2020 16:25:21 GMT by meccano
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stealthstylz
Club Retro Rides Member
Posts: 14,832
Club RR Member Number: 174
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They look alright to me (hard to judge in photos). Rods with spun bearings normally have a pockmarked surface or look absolutely mint like brand new on the bearing surfaces where the spinning bearing has machined the surface clean. Can you see the imprint of the bearing part number anywhere? That's usually a good sign that they haven't spun.
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stealthstylz
Club Retro Rides Member
Posts: 14,832
Club RR Member Number: 174
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If you want to clean them up at home to have a better look cut a 3" square of red scotchbrite, force it onto a cup wire brush for a drill then run it through the rod using a fast forward and backward motion. You might have to run the drill in reverse for the bristles to grab the scotchbrite but if you haven't got honing brushes it's easiest way to clean them up.
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Thanks stealth stylz.
What can cause the blackening, is it just staining from oil an heat.
Ive only ever worked on landrover / rover stuff and they have always looked mint when i've taken them apart.
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stealthstylz
Club Retro Rides Member
Posts: 14,832
Club RR Member Number: 174
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Yeah it's just staining. If I get 2 minutes spare I'll take some photos as examples when I get to work.
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look normal to me as well ! would have thought spun bearings would have made a right mess
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stealthstylz
Club Retro Rides Member
Posts: 14,832
Club RR Member Number: 174
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This is how a undamaged rod looks with the bearings removed.   Vs the same type of rod that has spun the bearing.   At a glance the knackered ones look better than the good ones. |
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Thanks thats really helpful. I recon i may be able to make out some numbers too.
I still can't get my head around why they were honed unless some one has done a rebuild at some point.
Theres also a few slighting dings on the edges of the thrust faces.
They are pretty minor but would need the high spots taking off. Do you have any recommendations for repairing these, or leave them to a machine shop to clean up?
looks like the 1uz build might be back on the cards.
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stealthstylz
Club Retro Rides Member
Posts: 14,832
Club RR Member Number: 174
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They're honed from the factory so might just be those marks showing. I use a ball honing brush to clean them up it doesn't remove any material just looks nice lol.
Yeah dings will need removing, won't cause a problem though.
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stealthstylz
Club Retro Rides Member
Posts: 14,832
Club RR Member Number: 174
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 That's the same undamaged rod as above once it's cleaned up. |
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dog
Part of things
Posts: 47
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If you bought them second hand then you have to consider it could have come from a blown engine, the drift guys are ringing the necks of these engines, if they were mine i would still get them measured professionally and checked for alignment before fitting these are pricey engines to rebuild.
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