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Big End Bearing


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#1 andyt

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Posted 08 February 2020 - 04:20 PM

When fitting the conrod bearing cap does the notch in the big end bearing go to the opposite side to the conrod bearing notch?

The rods and caps are all marked 1 to 4 but the caps were loose and don't have an orientation marked on them.
It's a 1275 A+.

Edited by andyt, 08 February 2020 - 04:20 PM.


#2 mini13

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Posted 08 February 2020 - 04:24 PM

Notches go together.

#3 andyt

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Posted 08 February 2020 - 05:31 PM

So notches on the same side of the rod.

#4 mini13

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Posted 08 February 2020 - 07:27 PM

Yep.

#5 nicklouse

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Posted 08 February 2020 - 07:30 PM

You did mark and orientate the caps and rods before you separated them to ensure you put the right parts together the right way round.



#6 andyt

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Posted 09 February 2020 - 09:29 AM

I did mark each cap and rod with their respective numbers but not orientation.

Lesson learned.

Edited by andyt, 09 February 2020 - 09:29 AM.


#7 GraemeC

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Posted 09 February 2020 - 12:25 PM

How did you mark them? If you mark the bore number on both rod & cap and did it on the same side, before you split them, then you have naturally marked the orientation.

But as said - the notches always go together, so orientation isn't a big problem.



#8 mini13

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Posted 09 February 2020 - 02:01 PM

For actual rod orientation, they got like this, if you put them in the other way it mammals locks up when you torque the bigness up

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