Can you hone/polish bearing ends of 2 stroke con rods?

[Rob Welman]

Good day folks , trust that your are having a good and safe festive season.

I have stripped both my 150 V6's and i note that majority of the conrods have marks /blemishes, that have been left by the rollers of the big and small end bearings

Can these marks be removed by using a fine grade honing tool?Is the honing/polishing of conrods a practice that is carried out in the industry?.

Any feedback / guidance appreciated

Best regards and have a blessed Xmas

Rob

[99yam40]

I would think that any indention or pitting of the surfaces the bearing ride on would be a bad thing. If you smooth them out far enough to remove the indention or pitting you would be removing a lot of metal and lose the tolerances that was built into the motor crank and rods along with the pistons wrist pins

[Rob Welman]

Thank you for your prompt reply

So they can be honed / polished. Do they have special coatings that can be damaged by honing/polishing?

I would naturally check that they remain within spec/tollerence before using them.

Regards

Robert

[rodbolt17]

no coatings, however if the blemish is large enough to trap a roller that roller will become a slider just before it exits the block.
its a judgement call that I cannot make from behind a monitor.

[99yam40]

As a auto mechanic I have reconditioned rods back in the 70's but I have not heard of anyone doing it to an outboard motor rod

[Rob Welman]

Thanks for all the input folks ,i really appreciate it

What I have done so far is,

I have taken the "worse" conrod and honed the small end. Whats i have found is that the honingstone leaves very fine scratches , which I think could cause a problem with the rollers on the small end. I will polish/buff it tonight.I will buff with 1600 sand paper this evening

Will hone / polish the big end tonight & check specs on both ends.

Will also post some pics of the other rods , with marks , to get your input

I know it sound like a lot of effort... but I hate wasting a resource if it is usable and still has life left in it.

The rods that I do find to be US will be sent to the scrap yard.