Kansas JoyRide

iTrader: (1)

Ok, so I pulled my intake to remove the defussers from the primary slots after having orginally installed my IDs without removing them.

To my surprize the primary runner on the front rotor was badly tarnished with gunk. It has only been a few weeks since I installed new injectors at which time I had everything totally cleaned up. The front runner was really bad when I removed the stock 550s and I assumed I had a stuck injector but apparently that wasn't it.

So long story short after a little more investagation I discovered I have motor oil standing in the bottom of both intake ports. (no oil in the cold air lines at all)

This engine was built by Glen Weaver, so pretty sure it was built right, it has maybe 15K miles and has never even seen WOT so what gives? The other thing I don't understand is why the car isn't smoking like crazy? Smokes a little at start up but then not at all so what gives?

Guess I am bumming and just looking for some hope.

turbojeff

iTrader: (30)

Pics? Power, idle, oil consumption problems? If not just run it.

Kansas JoyRide

iTrader: (1)

Thanks for the reply, I will take some pictures and post after work. was going to do a compression test as well but got to thinking, if it is the oil seals it wouldn't necessarily effect the compression, is that correct?

Power: Not as easy to answer as you might think. I went from a mild street port with stock twins to a large street port with an ASpec 500r. Also I am tuning (very slowly learning over the pst two years) and still have work to do at boost over 12 psi. My timing is conservative for sure and as stated earlier I have yet to run it at W.O.T. With that said, I have had a few short burst of boost up to 15 psi and I can tell you I was expecting it to pull harder than it does just reading what others with a simular setup have posted on this site.

Idle: It was perfect until I went to the ID 1000s in the primaries, it is now rich (11.5 to 12) with the stockers I had it at around 13.5. I have been told I should be able to lean it out but haven't figured it out.

Oil consumption: Here again I change it every 1500 miles so I don't give it much of a chance to disappear, but as I said it might smoke a little when I first start it up but after than not much.

Can someone explain why the oil is coating my LIM and UIM all the way back to the butterflies? Should this be a clue?

Also wondering if there is any remedys to try if it is stickiing oil seal springs. Can I do stuff like pouring E85 through it or water or what ever to maybe remove carbon build up. I know it has run rich at low end for the past few weeks. Also at upper end boost and throttle but I just don't run it enough there to cause any problem.

Sorry for rambling but any insight or suggestions from experience members would be appreciated.

Pics to follow

Radial GT

iTrader: (16)

How is your oil pan vented? If your using a PCV valve, it could be stuck and dumping crazy oil vapors into the intake tract.

Perhaps turn the turbo down and drive it WOT, sounds like she could use some RPMS!!

Mrmatt3465

iTrader: (10)

This is a bit far fetched, but are you running the stock PCV and not a catch can set up? If you are, the PCV blows oil right into your front runners.

Kansas JoyRide

iTrader: (1)

This is something I had not thought about and have to admit I do not fully understand. I am running an Excessive LIM so I have an after market oil filler neck. The filler neck has to ports on it. I blocked on and the other is just vented to atmosphere. I have a 1/4 inch rubber hose attached just to move any oil away from the engine. PVC is eliminated with nothing connecting the oil pan venting to the UIM. Could inadequate venting cause this to happen?

I took some pictures but have not loaded them yet. I did discover standing oil in the rear intake port as well. What are the chances both rotor oil seals would be bad on a low mileage engine. It would be great if it was as simple as oil pan venting. Any feed back wil be greatly appreciated.

Radial GT

iTrader: (16)

With no intake to oil neck line those two areas are separate. However, how does your intercooler piping look? Without a PCV valve, really that would be were the oil would be coming from. That would mean your turbo is giving you that oil misting. Could it be without proper oil pan venting your forcing extra pressure on your turbo oil seals? Perhaps...

The thing that is messing me up is you have no smoke..., it might just be normal too. I do have oil coating my i.c. as well. But the old mazda rips just fine.

Kansas JoyRide

iTrader: (1)

https://www.rx7club.com/members/kansas-joyride-33633-albums-oil-intake-ports-5917/

No oil in my cold air lines coming from the turbo. Attached are the photos I took last night

RotaryEvolution

iTrader: (30)

secondary runners always accumulate blowby and gunk, it is inevitable unless you had a single plate throttle body like the rotary works assembly. the secondary runners do not have any airflow across them until you open the throttle 30% or more which is usually a large chunk of time that the engine is running. air is still pulsing in and out of the ports however but the throttle plates being closed keeps fresh air from only pulling air into the engine versus oil slung off the side of the rotor pulled into that port and resonating.

don't lose any sleep, just run it...

Radial GT

iTrader: (16)

Never thought about that. That makes sense karak, thanks!

Kansas JoyRide

iTrader: (1)

THANKS A LOT, you have saved me a ton of money in therapy and attorney bills. Sleep was the least of my concerns, I have spent way too much money on this setup. Just thinking about telling my wife the motor was bad had me depressed and wondering about living arrangements.