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Every engine rebuild gasket set contains new valve stem seals. It's not usually those which leak on new engines, it's the brass valve guides with too loose of clearances around
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10-25-2010, 01:42 PM
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#11 (permalink) |
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A True Z Fanatic
Join Date: May 2010
Location: SLC, UT
Posts: 1,671
Drives: '08 Evo X | '10 370Z
Rep Power: 20   |
Every engine rebuild gasket set contains new valve stem seals. It's not usually those which leak on new engines, it's the brass valve guides with too loose of clearances around the valve stems.
Not sure what's going on with the VHR, but if it's the valve guides, Nissan should be replacing cylinder heads and short blocks (due to oil consumption build up). I'm assuming this is a problem with the cylinder wall finish or piston ring wear/lapping if Nissan is replacing short blocks only.
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