rebuild 2013 scion fr-s engine still knocking?
 

Please help >.<

I have had my engine rebuilt by changing the short block due to the infamous issue with these engines going bad. Just like many other frs/brz 2013/14 owners, after i got my car back from the engine valve spring recall it went bad. For mines, since i baby it too much i barely drove it, and the problem came after 1year. It had a rod knock. I had second/third/fourth/ opinions with the diagnose and they all said the same. And then, I had it fixed by replacing the short block. Now my question is with this video Im going to attach. Do i still have a knock?https://www.youtube.com/watch?v=gLlvviczEQ4


please watch the whole 28 seconds as i move the phone around.

Well, jjswamp, welcome to ye ol forum. Sounds like you have had some nasty luck with your car - :(

A few questions:

How many miles on the new block?

Do you have any power mods?

Have you tracked the car with this engine?

To me, it doesn't sound like a rod knocking, it sounds more like a valve tappet out of spec.

Others will chime in soon.

Good luck.

Yo, @Ultramaroon - this fellow @jjswamp , needs some help. What do you hear?

He says the block has about 10,000 miles on it; he hasn't tracked it; no power mods.

Others?

Where is everybody? - :iono:

Ooo... That's bad. I agree with you, @humfrz. That's a valve. Bent?

Would be inclined to agree, I don’t think it’s rod knock, sounds more like the valve train, I would not be surprised if your valves are out of tolerance, having built the valve train on an FA20 it’s a time consuming meticulous job and “close enough” is not good enough. Either way I think your going to have to strip the heads to find your problem, and hopefully it’s not a bent valve.

I agree. If it has sounded like that since the first startup, it just needs properly shimmed.