Hello, 14 corolla s 6speed manual, I down shifted on the highway, 5th to 4th around 65 mph, missed 4th gear didn’t realize it for a second, revved neutral 8k rpms (2k over rev limiter) panic shifted into 4th and released the clutch pedal, got it towed, Now in the garage I take The valve cover off, all my rockers fell off, (apparently it’s common on these 14 corolla 2ZR dohc 16v motors) dropped oil pan and gathered all rockers and the metal seats the rockers sit on between rocker and valve spring, (no they don’t bolt onto anything, they sit with pressure from the cam) so I got everything put back together, cams, rockers, everything looked okay no mutilation anywhere, Intake was off and the valves looked good, couldn’t check exhaust valves, new oil pan gasket and oil change, new spark plugs etc, compression test came out at 30/90/60/60 in cylinder order 1-2-3-4, haven’t attempted to start the engine because I’m not sure if I have bent valves or just a bad head gasket at this point, and have not done a set compression test yet either, but I may have not done the compression test correctly also. I pulled all 4 spark plugs, And the EFI-main fuse, I did not hold my throttle open Like I’ve been reading on some forums that I guess I’m supposed to? And I believe my throttle would have to be manually opened being it’s a “newer” car there’s no cable to my throttle from my pedal, so my questions are…
Should I redo the compression test, both dry and wet with the throttle open and write my results down and compare?
If I try to start my motor up, will I damage anything if the valves are bent, would I have time to turn the motor off if I heard anything out of the norm? So I could see what my results are at operating temp
Can I compression test And get a accurate reading on a cold engine? It’s been sitting cold for a few weeks now.
Thanks in advance!
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