Ugly valve cover answer

[DIESELMAN]

Originally posted by jstabilka

I almost forgot one small detail... ... ... ... ... ... ... ..... do any of you guy's think this will void any warranties?

You Rear Differential warranty will be toast, thats for sure.

 

[jstabilka]

Well guys, it seems I'm having a bit of a problem with the breather. It may take me a few days to work on a solution. I'm open to sugestion.

 

[DF5152]

Originally posted by jstabilka

Well guys, it seems I'm having a bit of a problem with the breather. It may take me a few days to work on a solution. I'm open to sugestion.

some fotos perhaps???

 

[Spooled-up]

Info from the Cummins plant tour.

When a group of us toured the plant up in Columbus, we saw that they ran another version on the same line with our engines. It's basically the same engine as ours except they put a different accessory bellhousing on the rear of the motor that can accomodate an air compressor. These engines were painted black and had the valve cover like in the pics at the beginning of this thread. I asked where the breather was and our tour guide pointed out that it was part of the accessory bellhousing on the rear of the engine. Not sure exactly how it worked, but I know it wouldn't work on our trucks due to the entirely different rear of the engine. As long as you vent out of the valve cover somewhere, it will work fine.



BTW, the other version of the engine went into medium duty trucks like freightliner straight trucks, tow trucks, etc. , and Ford trucks (F-660's maybe if there is such a thing???)

 

[Ol'TrailDog]

Looks like a well spent $78 to me. Oo.



Goodbye funky plastic thing.

 

[Vaughn MacKenzie]

Originally posted by jstabilka

Well guys, it seems I'm having a bit of a problem with the breather. It may take me a few days to work on a solution. I'm open to sugestion.

Can you be more specific? Are you having trouble plumbing into the fitting at the back of the valve cover?



If you had the CPL number off the work vehicle you should be able to get the parts listing and order the breather parts designed for that engine and valve cover. Have you looked at your work vehicle to see how the breather is rigged up?



I want to order one of these, it seems to me all you'd have to do is run a hose from the fitting at the back and into a blowby bottle or whatever you want like how the 2nd Gen 24-valve trucks are set up. Then remove the stock plumbing that comes from the top breather and plug the port where the small oil return tube enters the engine. You would lose a very small amount of oil doing this but not enough to worry about, it would be no different than all the blowby arrangements on the pre-3rd Gen trucks.



Vaughn

 

[Vaughn MacKenzie]

Back to ze top

 

[Jengle]

How about a vent at the rear on the side, either one, of the cover? Block off the hole at the rear, and move the vent to the side, is what I am thinking. That would give a little more clearance at the back, and still keep it out of sight under the hood overhang.

 

[Dean Upson]

This is my answer to the ugly valve cover .



Dean



#ad

 

[bighammer]

Dean, looks like you need an under-hood fire suppression system. (nice )

 

[Dean Upson]

Originally posted by bighammer

Dean, looks like you need an under-hood fire suppression system. (nice )

Yeah, my wife was pretty hot when she saw it. She said that I finally went over the edge ( whatever that means) . Now she thinks it's "cute" .





Dean

 

[TBrennan]

Wasn't someone going to build and sell something like these specifically for 3rd gens? I haven't heard anything lately.



If the breather issue could get worked out, this would probably be cheaper than a custom billet one though.

 

[Vaughn MacKenzie]

Cummins Northwest

Well I called up Cummins NW and they don't have the V/C in their database, but they looked it up and they are going to add it to their system. Once this is done it will be set up for all the Cummins Northwest branches and ordering will be easy.



I don't have prices for the V/C and bolts yet. I am ordering as soon as it's set up.



Those of you in other geographic areas may run into the same thing. Just tell them it's a good part number and needs to be added to their system because no one has ordered one before.



Vaughn

 

[jstabilka]

I ran into the same problem in here in Miami, it took me over 10 days and about a dozen phone calls including 2 straight to Cummins ( they didn't help much ) until I finally got the cover. The part number that I found is 3965133 for the valve cover, $74. 00 and 3959400 for the bolts, almost $5. 00 each. I'll be working on the breather this weekend as we have been rained out just about every afternoon this week.

 

[Vaughn MacKenzie]

Well I am very pleased you hunted this down jstabilka because I sorta took a stab at it a couple times and called Cummins but didn't get anywhere. I searched the web for other Cummins applications and pictures but no luck there either.



Good job of stickin' with it and getting your hands on one



If you have a name or contact that you worked with maybe I could pass it on to the guy I worked with today. . . Dennis at Pendleton Cummins NW.



Vaughn

 

[Vaughn MacKenzie]

Well my V/C arrived at the Pendleton branch already then they are shipping to me so I should have it in my hands Monday or Tuesday.



They dinged me a few more bucks for it though, $86. 14. With bolts and tax = $142. 76 Oh well it'll look cool when it's all done



I will take some pics of it when it arrives and post them in my album so you can get a better look at what it's like.



Vaughn

 

[Gypsyman]

Vaughn,

I was quoted the same price at Cummins NW in Spokane.

 

[Vaughn MacKenzie]

The very cool Cummins valve cover came in today, plain unfinished cast. Can't wait to get 'er on!!!



The oil baffle and crankcase ventilation contraption is built into the valve cover! Why didn't Dodge do that???



There are 2 ports at the back, 1 for the blowby hose fitting and 1 small one for the oil return that has collected and is sent back to the oil pan.



The blowby fitting is a smooth bore about . 75" diameter and . 75" deep. Needs a smooth barrell fitting with groove and O-ring for good seal and fit, then there's a small bolt hole so it could be retained by a fork if the fitting has a flange. So I'll have to do some looking.



I think this should be a fairly doable deal. My hopes is someone will take this ball and "run with it" and come up with a complete kit with all fittings to convert and properly plumb the crankcase vent system to the new valve cover.

 

[rbattelle]

Originally posted by Vaughn MacKenzie

There are 2 ports at the back, 1 for the blowby hose fitting and 1 small one for the oil return that has collected and is sent back to the oil pan.

Is it possible that oil return port might be appropriate for a bypass filter return line?

 

[Vaughn MacKenzie]

No it's too small rbatelle.



* * Check my Readers' Rigs Album for photos of Cummins Valve cover * *



Vaughn