Originally Posted by
epostag
i recently purchased a 00 gsr with 123k miles. it goes through one quart of oil every 350-400 miles. my trusted mechanics says it is the piston rings, compression test shows as 165-175. so the compression is okay, they are within 10 psi of each other. another mechanic also a friend of mine, who works for a honda dealership thinks it is the valve seals. from reading on this forum, it can be either.
my car is in the shop now getting the head rebuilt. it is costing me about $600 for labor and materials, just valve seals. if there is more issues then of course the cost go up. keeping fingers crossed. the engine is pretty stock, and that shop said that they think it is the valve seals. at the same time, i am getting the timing belt and water pump replaced so in all it will cost me at least 1g.
i'll report back once i get it from the shop. hopefully i won't need to do the piston rings, i have been quoted to be a 1400 job. it depends if the cylinder is out of round if so it would need to be re bored then new pistons that would need to be sized and on and on.
A leakdown test will give you a better idea where the oil is going. Possibility's are: Valve Stem Seals, Valve Guides, Piston Rings, and the Unlikely PCV valve.
If you took it to the Honda dealership, I'm sure they already did everything else I would suggest.
With 123K, its good that your getting the timing belt & water pump replaced, you might save a few dollars in labor having all this done at once.
Oh and Welcome to Han!
