Rep Power: 0

2001 D17A1 I had rebuilt about 2 months ago and I noticed yesterday that it’s going thru a lot of oil. So I take it to the shop that I trust and he tells me one of the cylinders has a bad set of rings because there’s oil in combustion chamber and going out the exhaust. So has this happened to anyone and could it be head gasket, rings, or ???? Not sure where to start.
thanks in advance

 
Rep Power: 222

It will be the oil control rings most likely. Were those not replaced when the motor was rebuilt?

 
Rep Power: 0

yes they were changed but I’m wondering if maybe a set was installed wrong or even broken during install

 
Rep Power: 367

carbon build-up is famous to make these engines collapse the oil rings.
Possibly engine is generating too much carbon deposits

 
Rep Power: 119

Don’t underestimate the amount of oil loss that can occur due too failed valve stem seals as well.

Were those replaced during your rebuild?

 
Rep Power: 229

It happens, happened to me when I rebuilt mine.

Reasons why
-rings weren't installed facing the right direction
-rings weren't clocked to Honda specific alignment
-rings rotated out of clocked alignment due to over deglazing of cylinders.
-cylinders weren't deglazed to set rings