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I'd say you have at least an 75% chance of bent valves. I did a T belt on a member's car here not long ago, where the water pump failed and took out a bunch of stuff in the t belt path..I figured it def bent some valves, but on the off chance that it didnt, i just put on the new pump, belt, ect., and left everything else apart. With just the belt on, it is enough to start the engine and see if it ran ok, and to check vacuum at idle. To my amazement, it ran perfect, and had 18 in/hg's of vac. Its not that much work to just install the timing belt and start it(be sure you have a good charged battery to run the engine), and if i had to pull the head, it wouldnt be much more work. I just left the engine supported by the oil pan, left the timing belt covers off, the crank pulley, and alt belt, acc belt, ect..Just be sure to let it only run long enough to make your diagnosis. If you are wary of starting, just get the t belt on, and then procede to do a compression test, that will tell you right there.  13.5 @108 MPH-2.2 60ft(stupid FWD!) S16G @ 18 PSI/FMIC/Running on MegaSquirt II (Now with sequential fuel injection) My webpage: http://eclipsed4evr.home.comcast.net -1998 Mitsubishi Eclipse RS-T- "Toy" -1992 Plymouth Laser Turbo AWD(SOLD) -2000 Honda CR-V(daily)
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