Skyline R33 Compression Results+ Injector Leak?

[PagoRB25]

Hey guys i just tested my engines compression (cold) and the results are as follows

Cylinder 1- 160 psi
Cylinder 2- 160 psi
Cylinder 3- 140 psi

Cylinder 4- 145 psi

Cylinder 5- 160 psi

Cylinder 6- 150 psi

Are these good results? Im worried about 3 and 4 as there quite different results to the rest. Also when i pulled out my spark plug from cylinder 4 it had a coating of fuel covering. I havent run my car today however i have primed the fuel system (has aftermarket fuel pump). Could this be a sign of a leaking injector?

Cheers Alex

[PagoRB25]

Need help please?!?

[GTSBoy]

Could be anything. #3 down together could mean a small leak in the head gasket between them, or less likely but far worse a crack in the head between them. or they could both have sticky valve guides or damaged valve seats leading to poor sealing (by coincidence). A wet spark plug in one or both of them could indicate a leaky injector which could in turn be responsible for causing one of the problems in one or the other of those cylinders.

But really, do you seriously expect to get a diagnosis of something like this over the internet?

[AngryRB]

Its not a great result but they are mostly within 10% of each other so probably just acceptable, maybe redo the test a few times and also a leak down test to see if it changes. How does the car drive/idle?

[AMR33]

Agree with GTSBoy - unlikley that you will find the correct diagnosis on here. But anyway, this may give you an idea http://www.gnttype.org/techarea/engine/plugs.html

[Ben C34]

If the engine runs fine, keep driving it. Don't stress about numbers!