Well, bought the car in January, had a melted piston thanks to the Turbo swap it had. I cleaned and honed the block then installed LNF pistons and rings. I've put 8K miles on it and have noticed a little oil here and there in the charge pipes whenever I've had to remove them for minor maintenance. Trans went out a couple of weeks ago, trans shop can't catch a break with the car. Anyway, I went to the shop today to see why the new TOB they installed took a crap. While looking in the engine bay I noticed a nice little amount of oil in one of the rubber elbows for the pipping that was laying on the top of the engine. What's the deal? I know I'm more than likely going to have to open it back up, but it's had time for the rings to seat, there's no awkward idle, no skips, no smoke, no smell, no nothing to show symptoms of blow-by....could one of the rings just not have seated right? I'm just trying to get a general idea on what could be the problem before I tear into the block yet again.

 

do a leakdown. that will tell you almost everything you need to know.

 

Sounds normal. If you don't want oil in your charge pipes, you need to buy Powell's PCV upgrade. It keeps oils out of the intake system and off the intake valves. Everything with DI should have this.

 

This isn't a junk ass DI engine

 

Why'd you put DI pistons into an LSJ?

 

Because at the time my budget was cut short and I needed pistons to get it up and running. I originally wanted Wisecos but didn't have the cash for them. The stock lsj's literally melted in #4 because of the boost. I figured I the LNF's had a higher rating and it was an option I could get immediately that would last.

I bought it to work on and eventually make it a dd because my Camaro bit the bullet last year. Well I was driving my in-law's Honda until I could get it up and running. Something happened and they needed the car immediately so the project became an emergency build.

 

I planned on doing that as soon as I can get the car back. I'm just terrified of what I'll find because Murphy loves me.

 

LSJ piston:


LNF piston:


That dish is to distribute the high pressure DI fuel throughout the cylinder, I'm kinda surprised they don't hit anything in your motor.

 

I had the same initial feeling when I was looking at them placed in the block with the head off. I tried searching for clearance numbers but couldn't find any. When we threw the head back on and set the cams in position for timing, they never struck. lol

 

Oh, also forgot to mention...the car has a catch can.

 

Lol, my bad for assuming you put the right pistons in your motor.

 

Catch cans are garbage. Do it right and get a seperator.