evolve_VIII

iTrader: (11)

So i recently built an evo. It was a rebuilt 2.0 to a 2.3L, wiseco pistons, manlet tt rods, ported head and HKS 272 cams. I had the head decked and valve seals replaced and valves lapped. bored the block for 85.5 pistons.

After a month, the car started burning oil in cyl 3. I pulled the motor and I replaced the piston rings, valve seals and relapped the valves. Went to get a retune and injector 1 failed causing it to flood like crazy. Replaced the injectors and the car made 550whp on pump. He picked up the car and drove it home. A day later after normal driving he said it was a quart low. He pulled the plugs and cyl 3 is caked in oil. like a puddle on top of the piston. Thats too much for rings to be the culprit.

Is it even possible for the valve guides to cause this problem? I would think new valve seals would take care of the problem if that was it. It doesnt add up. Im asking for ideas on what to even look for at this point since im stumped. How can that much oil get through the guides and past the seals just driving around?

Thanks,
-Joe

Rmr298

iTrader: (1)

It could be a number of things from cracked block, head or even valve cover gaskets.

evolve_VIII

iTrader: (11)

I thought about a cracked head. There is no oil galley directly next to the cylinder in the block. I dont know what would cause it to crack since it never overheated or anything. Theres no oil in the coolant or coolant in the oil so i would just about rule out a block. its not a valve cover gasket since there is no oil in the spark plug well.

barneyb

I seems you have touched all the other bases. Rope trick the valves in cylinder #3 and remove the springs and seals. Check for play by shaking the valve stems.

Rmr298

iTrader: (1)

X2 I would also measure it for thickness and straightness if you decide to take it apart. By the way try to do a compression test and a leak down test. Did you checked the pistons for cracks and or crack rings?

Migsubishi

iTrader: (38)

If you pull it apart again, take the head to machine shop or cylinder head rebuild facility and have them check the head for cracked valve guids. If it's not rings, gasket, seals or cracked head/block then that's the next thing to check. Also one of the valve stem seals could have gotten damaged during install and got worse as the car was driven.