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Author Topic: Rod bearing wear  (Read 7278 times)

mrgreengenes

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Rod bearing wear
« on: May 25, 2009, 07:48:20 PM »
Here's a set of rod bearings i pulled from a built b16gay, figure out how the rod bearings got to be like this and i'll give you 5 imaginary dollars...





Phil
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Conceptz-X

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Re: Rod bearing wear
« Reply #1 on: May 25, 2009, 07:51:38 PM »
Is the blue from heat or a coating?



I'd say bent rod
« Last Edit: May 25, 2009, 07:54:46 PM by Conceptz-X »
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mrgreengenes

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Re: Rod bearing wear
« Reply #2 on: May 25, 2009, 07:59:36 PM »
It's an oem bearing, black colour, and all 4 rods are the same.  It looks like there are 3 or 4 layers, the copper coloured one is the deepest wear.

phil
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Conceptz-X

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Re: Rod bearing wear
« Reply #3 on: May 25, 2009, 08:26:45 PM »
All 4 the same color or wear? 
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mrgreengenes

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Re: Rod bearing wear
« Reply #4 on: May 25, 2009, 08:33:27 PM »
all the same wear, rods are straight...

think sideload

phil
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Conceptz-X

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Re: Rod bearing wear
« Reply #5 on: May 25, 2009, 08:34:47 PM »
thrust fucked up?


Seen some so worn out, when you hit the clutch, the crank would move almost 1/4 inch and throw the belt depending on the rpm
« Last Edit: May 25, 2009, 08:36:24 PM by Conceptz-X »
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mrgreengenes

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Re: Rod bearing wear
« Reply #6 on: May 25, 2009, 08:58:48 PM »
DING DING DING...  fuck i was hoping for this to be a multiple page guesswork..

the thrust wore out and spun out of it's channel, and then the crank met the block and main cap and wore each other out.  The funny thing is that since the thrust washer spun and jammed, there was very little endplay.  The rod jammed against the piston side and tweaked the reciprocating ass'y sideways.

here's your $5

phil
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Conceptz-X

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Re: Rod bearing wear
« Reply #7 on: May 25, 2009, 09:19:20 PM »
lol.  You didn't specify all bearings looked like that from the start. 

I had seen an engine that had bearings like the ones you pictured, it had hydrolocked and bent a rod, still ran. 
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