Leak down test So why not share some stuff again, i just did 2 videos about leak down test (to much talk about that lately), i use Youtube because my transfert rate is getting to high, quality is not 100% yet. This is a Subi engine but it's all the same stuff, when you know how to find TDC you can do a LDT. This engine was lightly hit and i bought it for a good price, it as no mile and was a dealer car. Anyway, worse case i have spare heads.

The first one is the test itself

Second one is why the test can be... well, not much help. This cylinder was showing 90% leak so i thought some valves where bent... not the case, just some dirt in between valve and valve seat.