Yesterday, the always helpful Robg helped me to clean my Intercooler. Here is what we found.

Very oily intercooler with pieces of teflon that flaked off the rotors.

The underside of the blower shows the flaked off rotor pack.

The inside of the blower case. Dripping with oil.

 

With the intercooler removed you see the inside of the lower intake. Again, dripping oil and pieces of teflon all over the place. Even the drain back opening at the bottom is completely closed off with teflon pieces. Not good.


After 4 cans of brake cleaner and blowing it out with air we finally have a clean intercooler. There was probably a half a quart of oil in there.

The blower recieved a new set of graphite coated rotors.



This should show you the importance of running a breather cap or similar device to help relieve crankcase pressure. This truck never had a breather cap, until now. It also has 23,000 miles on it so don't think this only happens on high mileage trucks. The rotor problem was an issue on mostly '99 & '00 Lightning trucks.

 

Wow - thanks for taking those pics.... scary stuff!

 

Awesome post.........I was glad I cleaned mine as well. It was not as bad as yours but I also didn't have as many miles.

I am sure you will see more power now that the IC will be more efficient.

--Joe

 

No problem. I edited the posts a little.

 

First off all, great pictures and write up

The Thunderbird S/C used the M90 blower and had rotor pieces flake off. Its common with the Eaton Superchargers. A breather cap will not help this. All you accomplish is unmetered air to enter your engine, which will cause a lean condition. Even though you can fool the computer with a reburned chip to compensate, mod engines werent designed to be vented to the atomosphere.

I would like to know where the myth was started that a breather cap would prevent the rotors from flaking and unwanted oil from entering the blower/intercooler

 

I want to know whats RobG doing working on trucks when he should be in hOOters drinking and eating wings

 

Wonder what mine looks like? 66,000 miles (38,000 of them after intercooler change by ford).


Jerry

 

****,

I wasn't saying the breather cap prevented the rotors from flaking. Read the post again . I was merely saying that there is a problem with them flaking on the 99-00's rotors. As far as the breather working or not. It helps relieve crankcase pressure, which prevents some, BUT not ALL blowby of oil getting by into the intake. As far as a Lean condition, well I know of numerous people that run this setup up with no known problems. I have a chip burned for this. Say what you will, but I am sticking with it. I ran a 12.65 with all that oil in there. Now can you imagine what I 'd run without all that oil in there. You figure it out.

To those people that thanked me for the photos and write up. WEll RobG took the pics and he did the write up I just copied it. Hey did I violate a copyright law?? Oh well, Let him sue me.

 

Here is another one:

http://www.nloc.net/forum/showthread...threadid=38408

No breather cap or seperator..................

Dan

 

Hmmmm.. Thanks for the pic's .. Great post.. But I don't know were to go from here.... I hear about unmetered air and tunes and confusion#$%&&* Dam

PEaCE......................

 

Now ell have Breather cap wars.We already have blower,tuner,pully,intake,iraq wars

 

Oh year,The longest war......chip wars

 

Awesome post QKSILVR

man thats alot of work, but Dam did it need it




As for the Breather
Just buy a 1" brass Spring Loaded Check Valve and a 1" by Close Brass Nipple.

Like mine


see how dirty it is, (proff it's working) Yet there is NO possible way for air to be sucked back into the motor.
No Re-burn needed
No Possible Lean condition

 

I can verify that! Mine has turned 23k and I just replaced the old leaky heatexchanger with the new upgraded one.

My old one looked just like yours, teflon and all.

Wished I would have known about the teflon issue. Could you send me a link or post one so I can do more research on that.

The whole job took 4 hours.

Is the rotor replace ment a easy job and how much did they cost? Where do you get them?