frantz return line location?

[4 wheelssmoking]

I am wondering if any one is using what looks to be a plugged hole for a dipstick tube that is located on the passenger side of the block. If that is what the plugged hole is, how do you remove the plug and what kind of adapter would you use for the return line? thanks RAY

 

[rbattelle]

I considered using that hole. I think it's just like a freeze plug that's used to block it off. It does go back to the pan. Problem is, I don't think it's threaded, and it's a big hole. I figured I'd have to thread it, which is a whole other issue with the shavings getting into the pan.



Then I was reading Four Wheeler this weekend and there's an article about the Walker Airsep for 2nd gen trucks. Included in the Airsep kit is a redesigned turbo return line with an integral drainback to route the oil collected by the Airsep back to the pan. I'm thinking of phoning Walker and asking if they'll sell me just their redesigned turbo return line.

 

[amsoilman]

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Here is a simple method for getting the oil from a "Single Remote" by-pass back to the oil pan thru the oil "FILL" cap.



Cap is available from "STANT" at most Auto Parts stores, and "Swivel" fitting is available from Amsoil Inc. Part# is BP-89.



Wayne

amsoilman

 

[_Hyde]

I've been thinking of returning to the turbo return line on my truck. I have the Amsoil swivel fitting but its starting to leak. Only problem is that I would have a rather long return line since my filter is mounted on the front LH side of the engine.



Hyde

 

[bmoeller]

I used the Amsoil swivel on my truck. Unless you didn't get it in the kit, I still have the Oil Pan Fitting - Self Tapping Hollow Bolt, that came in my kit. You can have it, if you want it. Same as the punch and washer to start the hole.

 

[_Hyde]

I think I still have mine and actually thought of using it for the return into the turbo oil return. Would probably braze it just to be safe since its pretty round. The only thing I don't like is running such a long hose to return especially around the exhaust and all. Dunno, what I have now isn't leaking too bad, more of a seep.



Hyde

 

[KO_RAM]

I just got my Filtration Solutions FS-2500 bypass. I haven't gotten it on yet (hopefully next weekend). They have the return going in the top of the valve cover at rear of the engine between the two rear bolts. The instructions call for removing the valve cover and drilling and tapping it for a 1/8" NPT. It doesn't look like it will be too tough.



I looked at those plugs near the turbo oil return line too, but I think I'll stick with the valve cover, like my instructions say. I thought about the Amsoil swivel too, but I don't want to mess up my pretty oil fill cap

 

[amsoilman]

Well, Here is another Option for the "hollow bolt". Punch the pan with a punch just a bit smaller than the end of the "hollow Bolt", and install. I have done some this way as well.



Wayne

amsoilman

 

[THanley]

Return to oil pan

You can return to the dipstick location on the other side of the block. You can purchase a dipstick tube from your local Cummins distributor. The dipstick tube is knurled and comes with sealant on it. It is a force fit and is typically installed with a special tool. You're best bet is to have the distributor install the dipstick tube or see if you can borrow the tool.

 

[rbattelle]

I have been reading with interest the thread about those who are working on installing the Cummins valve cover on these engines. It is my hope that it might be easily modified to accept a bypass oil return line. I'm not a big fan of the oil fill cap return method, as I've tried it and found it too prone to failure for my tastes.



Has anyone considered the potential for oil aeration when returning to the valve cover? Over at www.bobistheoilguy.com forums there are some who have reported very very negative results with valve cover returns.

 

[KO_RAM]

Originally posted by rbattelle

Has anyone considered the potential for oil aeration when returning to the valve cover? Over at www.bobistheoilguy.com forums there are some who have reported very very negative results with valve cover returns.

From what I was told from Filtration Solutions, the amount of oil being circulated through the bypass was not enough to be concerned about aeration (I think they said 6 gal/hr). They did say that the Cummins ISB engines normally have a port or two in the oil pan for industrial applications, but the Dodges don't. DC has their own pan (without the ports ).



I thought about the "hollow bolt" idea too, but I just can't bring myself to punching a hole in the oil pan. I'm going to drill and tap the valvle cover.