My Nissan sunny FB14 fitted with GA15DE engine is smoking intermittently and consumption of oil has gone up. I consulted a mechanic who observed it and said it could be that the VALVE SEALS are worn out which are allowing seepage of oil.
He also said that there was need to replace the valve seals.
He told me that instead of just replacing the valve seals, its advisable to buy overhaul gasket set and piston rings so that all these are replaced.
My question is that is it necessary to overhaul the engine when only the seals are worn?
What are the implications if we just do a top overhaul?
Thursday, February 27th, 2014 AT 12:17 PM