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bassam64i · 12-04-2007, 09:34 PM

Hi all, I just would like to introduce my self, I have an engineering background, and I own a 93 camry Vienta 3VZ-FE with 104,800km, dual fuel (petrol/LPG), anyone here had this engine on LPG? did anyone experience valve problems (valve recession, burning, guides)? as you know LPG is a dry fuel, therefore no lubrication to the valves, i'm using the valve saver kit to solve the problem but i don't think it's working 100% (happy to disscuss why). I also know about synthetic oils in depth, I use 10W-30 Mobil 1 fully synthetic....glad to meet you all

bassam64i · 03-14-2008, 06:15 AM

111,700km no problems so far...all nice and smooth

bassam64i · 06-09-2008, 11:15 AM

117,000 it's a bit less responsive, not sure weather the valves started burning due to hot LPG

bassam64i · 10-20-2009, 06:28 AM

I found the problem, the manifold hose was broken, air was sucked in unfiltered.

I now did 137,800km no problems on LPG.
I found this very interesting article on LPG and exhaust valve problems
http://www.go-lpg.co.uk/VSR.html

I have been using mobil1 fully synthetic oil and shell helix ultra, great results, engine very very clean.