D15, D16, D17 and Mini-Me swaps
By ZactheRipper
#343304 Hey I've got a d16a7 with d15b vtec head in my civic. Rebuilt it myself and it's been going strong since only issue is after going down a hill ( I live on a hill ) upon acceleration I get a cloud of blue oil smoke for a few seconds. I thought I had bodged the install of the stem seals so I replaced them again which reduced the issue but has not fixed it.

Any insight into this would be greatly appreciated.
By jefferydclark
#343309 i'd say your valve guides are worn out on the exhaust side. you'd have to take it to a machine shop to find out though. if that's not the case you have worn out rings.

of course, it could be other random things like the pcv valve also...