Brake valve?

[jmblake]

Chessie
I didn't bring it home but I had a picture on my phone that we compared to and it sure looked the same. The only thing I wasn't sure is does the parking brake for the DD3s have anything to do with going though this valve?
Jason

[jmblake]

On the MCI site the are showing a E-10 as a alternate valve?
http://partsstore.mcicoach.com/webapp/wcs/stores/servlet/ProductDisplay?urlRequestType=Base&productId=120283&catalogId=10052&categoryId=&errorViewName=ProductDisplayErrorView&urlLangId=-1&langId=-1&top_category=&parent_category_rn=&storeId=10051

[chessie4905]

You can have air feeding back from the items I mentioned.

[jmblake]

Sorry chessie I didn't see the bottom of your post, I had no leaks prior to this, It all started after I cleaned and reinstalled the valve, I also see where Cliff said it was a E-6 valve. I will probably just replace it than I know whether it is the problem or not.
Jason

[luvrbus]

I looked at the photo Jason yours has been replaced with the E10 only difference is the E10 has the taller upper  housing for the coil spring which yours has, OEM valve was the E6 on the 8 and early 9's tghe E10 is supoosed to be a better valve   

[jmblake]

Thanks Cliff, I'll check at my local store and see if they have one, I see MCI wants $852.00 for the E-10 assembly
Jason

[luvrbus]

Thanks Cliff, I'll check at my local store and see if they have one, I see MCI wants $852.00 for the E-10 assembly
Jason

There are several different models of a E10 can you find the metal tag on a bolt ? 

[jmblake]

I don't remember seeing a tag anywhere on the valve, Is the difference something internal or something I can tell by looking at the outside?

[luvrbus]

The top flange mounting and port locations is the difference 

[chessie4905]

Even though some parts of semi brakes are different, this may be of help to you.
http://precisionrebuilders.com/prob1.html

[bandsaw]

Hello, I had a similar leak on a 1990 102C3. I changed the foot brake valve and it did not fix it.  It turned out to be the emergency brake valve.  That was much easier and cheaper to replace than the foot valve.

Bandsaw

[chessie4905]

If you look up bendix e6 and e10 brake valve in one sentence, you will download a pdf. with differences between the two. They definitely look different from each other.Also describes operation.

[Dave5Cs]

https://www.anythingtruck.com/product/061-286171X.html

https://www.anythingtruck.com/product/061-101100X.html

[chessie4905]

If you label and disconnect all lines except the supply lines, which there should be two, if there is still air leaking out the bottom of ports to feed the other items, brakes, throttle, etc, then the valve is at fault. It will only expel air to the delivery ports when treadle is depressed. Make sure the unused supply ports are still plugged when you do this.

[jmblake]

Thanks for all the responses, I haven't had time to work on it, but hopefully over the weekend I can get it figured out.
Thanks Jason