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B series burning mystery oil

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Old Nov 9, 2023 | 07:29 PM
  #1  
Ashton Mecham's Avatar
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Default B series burning mystery oil

So my shitbox ej2 civic has a b18c1 swap with 10.5:1 cr and forged internals and it only has about 6-7k miles on it but she’s roasting oil, i replaced all my valve train seals and head gasket and my compression is phenomenal with 236 being the highest in cylinder 4 and 221 being the lowest in cylinder 3. It burns about a half quart ish a week on daily driving and damn near a whole quart when i take it to the canyons for three hours. I have no clue wtf could be causing this much oil to burn but any time i do a WOT pull from a dig, all through first and sometimes second there’s just a cloud of burnt oil vapor behind me. I’ve never owned a b series before this and i bought the motor built so i’m not sure how much oil they burn normally cause i know this is a common issue with the b series motors. If anyone has any ideas as to where i’m burning this oil from i’d really appreciate it.

p.s.
I replaced valve guide seals, cam seals, head gasket, and valve cover gasket last week, intake ports were very slightly dirty but almost no sign of blow-by as i have a catch can, intake valves have been upgraded to flat valves, wiseco pistons, bored to 82.5 mm (yes i know that’s a weird *** increment idk the reasoning), mostly stock heads, css racing block, and a bunch else but it doesn’t play a big role in the problem. also, hondata s300 ecu. if there are any other questions i’d be more than happy to answer them
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Old Nov 10, 2023 | 06:51 AM
  #2  
Ryanthegreat1's Avatar
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Default Re: B series burning mystery oil

Probably the valve guides. Not the seals, the guides pressed into the head. I bet they are hot dog down a hallway loose.
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