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Old 06-07-2019, 11:13 AM   #45
aemravan
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Join Date: May 2019
Drives: 2013 Scion FR-S
Location: Charlotte, NC
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Well, finally a couple of updates.

Got around to finally working on the car a little. Did my research for 3 days on the documentation and went to town. Disassembled the front end to make my life easier (all fenders and stuff were finger tight anyway and need paint).

Spent maybe 3 hour getting garage ready and undoing some stuff on day one. And another 2 hours on day 2. If the garage was bigger and I didnt need to take the car down and push out in the driveway I probably could have pulled this start to finish in about 3 hours.

Did all the work myself with no help so everything considered its actually a pretty damn easy motor to pull. I was pleasantly surprised that the harness literally disconnects and most of it stays with the motor.

After pulling off the valve cover I found exactly what I had thought. The rocker has slipped off. The spring however isnt broken. This was surprising but I have a theory.

A piece of plastic from the intake broke off in the accident and later wedged itself between the open valve and head. This allowed the rocker to lose contact with the valve and either that was enough to make it jump off its seat, or the piston tapped the valve and that knocked the rocker off since the cam wasnt in contact at this time.

Either way, the damage could have been a heck of a lot worse... the head could have been trashed with a loose rocker thrashing around.

I will probably replace the rocker though it doesnt really seem damaged at all..

My next step is to figure out whether or not there was contact to the valve and if its bent or not. I'll probably rig up the starter and try another compression test to start with and see if the numbers are up to the healthier 180psi of cylinder 1. If not, the head will come off and a valve will go in. I dont believe the valve guide is trashed bc even if the valve is bent it is only barely.

Stay tuned for more ! I'm hoping for a best case scenario where the valve is healthy which will save me like 135 bucks in parts ! But at the end of the day either way it isnt so terrible. Stay tuned for more !


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