Robert Stern

Hi All,

I have done a compression test and found that my cylinder number 2 is about 50-60% less compression than all the rest, dry and wet.

Just wanted to get some advice as to what I should do next to see if this thing is worth fixing, or to just dump it and get a replacement motor, seeing as they are only around $900-1000, I don't think it makes sense to spend a lot trying to fix this one.

2nd, if I continue to drive this one with low compression, whats the worse that could happen? It runs pretty good considering, a little rough idle, but still has power.

Lizardslap

what motor is it and do a leak down test could be something like a burned valve or somthing

B_Swapped93

post the numbers wet and dry

Robert Stern

D16Z6 Motor

1st 2nd 3rd 4th

Dry 185 100 200 200

Wet 245 160 250 245

B_Swapped93

That's a fare jump from dry to wet. i'd say rings starting to go mine only jumps 3-4psi max when i do a wet test. but that's not to say a leakdown test isn't a good idea.

Robert Stern

So, sounds like leakdown test is the way to go. that will at least point me in the right direction.

Robert Stern

So, took it to my local shop and for $25 they ran a leak down test.

Came back with 80% Leakage through the exhaust valve. Guy there said car shows signs of possibly having a turbo install previously and too be careful that fixing the exhaust valve might not solve all the issues, wouldn't know until its all opened up.