Toyota Repair Problems? Ask a Mechanic for Answers ASAP
Hello, my name is***** for the question. I am sorry to hear about your vehicle. Can you tell me if you have a compression gauge.
Do me a favor and start by checking the compression. Hopefully the timing was not off because that may have caused the Pistons to hit some of the valves and now there is no compression. If the compression of fine then see if there are codes in the system stating that the cam and crank sensors are not In time as that can cause it to not start.
Sounds good. I'll look for your response tomorrow.
It may be a ring issue, but that does not usually just happen all of a sudden. You should get some leakage as the rings do not seal 100%. If you only have compression on 2 cylinders then there is a serious issue, and it is more than likely damaged valves.
You definitely would hear it or feel it by hand but not with the starter. The starter has enough torque to bend the valves instantly. So with the valves closed and doing a leak down test you do not get any air from the intake or exhaust?
If you are getting that much air from the crankcase then there is definitely something wrong. It is possible that the head gasket is not installed right or a torque issue. I am not doubting your ability, I just have to throw this out there especially with fuel in the oil.
It really depends on what is going on. If the head gasket is not sealing between the combustion chamber and one of the oil drain holes then the pressure will only enter there.
You did torque them wrong. It am not sure if it would have caused the gasket to actually break, but either way there is an issue. Unfortunately these are torque to yield head bolts so you will probably need to replace those also.
Please do let me know. Also take a closer look at the pistons and valve to make sure that there were no contact issues.
Sounds good. Thanks for the update.
That is baffling to me also. It is not something that I have come across before on this engine. The rings can collapse and not have a good seal until the engine is started again, but typically the leakdown is not that sudden or that fast.