I installed my oil catch can at the start of MTTS and the results are below. I always wondered why I could pour oil out of my intercooler before. I drove just over 8,000 miles for MTTS.

 

how do you have the hoses ran?

 

That is definately not healthy......way too much oil for 8k miles.

I hope no oil is leaking into the crankcase, maybe you should get it checked out?

 

I agree.
I have a clear plastic fuel filter plumbed into the PCV line and while it is catching oil mist/vapor, it's not catching that much.

 

Have you confirmed that all of that is oil? Maybe it is condensed water?

 

its' definately not all oil, it's not dark enough....

whatever it all is, there's too much

 

The first time I took my intercooler off (about 2k mi) I poored out oil. It has been the same since it was new and I now have 48k on it. Now that I am catching it I can see the amount of oil running through the system. The only place it can be coming from is past the rings since I installed the Cosworth head and nothing changed. I change my oil at 5k (except for MTTS) and it's always down about a quarter quart. It runs perfectly so I will let it go and maybe do pistons and rings someday when it gets worse or my mods get better.

Steve

 

Yep, that is moat likely caused by blowby of oil past the rings. You shouldn't literally be able to POUR oil out of the intercooler!

I think that you'll be looking to replace pistons and rings sooner than you realise, maybe necessitating a rebore to accomodate some oversize pistons if the bore is damaged.

I had the same trouble with my last engine. MTH tuner map made a grand job of destroying my ring landing! In your case, if you aren't using any type of ecu tune and don't have a wideband to monitor AFR, then you are probably running pretty lean past 6K, which is just as bad as what happened to me with detonation induced by ignition advance cranked way too far.

Cheers,

Henry

 

What you described is not an MTH problem but rather a knock sensor problem.

 

His car is running the opposite of lean. Infact, it is running so rich right now that you can smell the unburnt fuel when you drive behind him...

 

I'm currently running JCW software and I will be dyno-ing the car in the near future to see what's going on with the AFR. My car has always run really rich even after a lot of mods so I am not too concerned, yet.

Steve

 

When I swapped IC units (about 10,000 miles) - I stood my old IC upright to see how much oil would come out of it. The IC was warm and a half hour later
I had gathered on the ground about a teaspoon.

 

I just installed my OCC two days ago....so I'll see in a little bit if it catches anything.

-Cody

 

Knock sensor is fine. The file has been looked at by another reputable tuner here in the UK and was shocked at the ignition advance being used on the penultimate tuner map I ran before the engine passed on.

The knock sensor has already been tested and I will use it without qualm in my twincharge rig. The MINI sensors are damn good quality btw.

Cheers,

Henry

 

...

 

Something is not right because the job of the knock sensor is to take care of the ignition advance if needed, i.e., knock is occurring. MTH's map doesn't go all that far; besides even if it did the knock sensors just retard the timing.

 

Alrighty now, back to our regularly scheduled programming.

I briefly looked at the inside of the valve cover when I was doing the Cosworth head and noted that there was some kind of oil deflection plates where the vents exit the cover. Since the vents connect up to a vacuum source, is it possible that oil is getting around deflectors and being sucked out? I don't know how much oil is being flung around inside the cover, but if these deflectors aren't doing their job, that might be a source of oil.

Steve

 

It could be anything... I mean, look at my IC. With 6000 miles of hard driving, i could wipe the inside of the IC with my finger and not get any residue on it... If your car has run this long like that, i doubt you will be having a rpoblem... The biggest issue is reduction of IC efficiency. That is another benefit of methanol. If you put one of the inputs (a smaler one) befire the IC, you in essence steam clean your IC...

 

hard driving makes less residue then part thottle driving.

light throttle driving is where the most vacuum between the crankcase and the intake path occurs, and thus where the most oil vapour starts to get into the intake system/IC.....

 

Aah. So driving my car hard all the time is good for it: grin:

 

sure is....my car doesn't like being driven slowly. It tugs at the leash. It only responds well at full throttle and at about 4kRPM

 

Thats kinda odd. Mine will pull from 2500 now that i put he exhaust on... If i wana pull really hard at freeway speed, i usuall bump it up to the 5k range, though...

EDIT

Ya.. I think we got a tad off topic again... Sorry Steve!

Anyways, I'm probably going to buy one of these soon. I need more engine bling.

 

:D i was only joking. i can pull from less than 2kRPM. I have MTH and headers, i have ultra torque :D But my car is jumpy at low revs and light throttle

 

Flat spot?

 

not really....i have a slight flat spot at 2800 RPM, but the jumpiness is more down to hesitation when pressing the throttle. Its a very hard car to drive smoothly....i think i have a dodgy precat O2 sensor....cos i'm not gaining any power from my pulley, MTH tuner remap or headers, which just doesn't make sense, not to mention my fuel consumption is terrifying