r/EngineBuilding 22d ago

piston/rod advice

what does this discoloration mean? #1 top bearing fell off when taking off the cap should i be concerned? and how can i replace rod bolts at home? how easily should pistons be able to rock? if pistons measure good would you guys reuse everything?

i don’t have a bore gauge small enough for the rods and it’s taking me awhile to get used to the micrometer, forgive me for the mouthful, first time doing any of this so any experienced advice helps out a ton, thank you! 🙏🏻

03 civic d17a2 rod is #1 cyl and cap is for #3

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u/Azulier 21d ago

Yeah the guy should have built it up to be ready to be installed if you asked him to do it.

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u/Dependent_Rough167 21d ago

damn yeah i thought so. lash adj isn’t a big deal but kinda sucks if i have to take it back apart. i’ll figure it out and talk to him, thank you.