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Ok I am looking to do a catch can mod to my VC. I am certain I do not have blowby. I just have issues with sending oil into the turbo/IC. Maybe I am being a bit overkill here but I could assume that there has to be build up in the IC over a 100K of running. I was wondering if anyone has come up with a good catch can set up? I am just going to flip the breather and run 3/4 heater hose to something but not sure what to use. Ideas?
..... I could assume that there has to be build up in the IC over a 100K of running.....
I have no advice or ideas about making a catch can....there are some good threads where folks have made their own versions that seem like they would be quite effective, try a search and see if you can find them. They would be around 5-8 years ago if I remember correctly....
At any rate, to quell your curiosity. We pulled the IC off one of our trucks after 350k miles to see how much oil might be in there. No measurable amount was detected.
I made my own and posted some photos and it has worked well. I have mine set up with a return line as I did not want to vent mine open and having it dripping. That would be illegal where I live anyway. I went to lowes and picked up some PVC, some caps, a drain, some hose with adapters along with a little brillo and it was gtg. Can not say for sure if it was necessary as I drain mine a couple times a year and get maybe 2-3 cc's out of it. Some folks get much more but they may have the drain tube too low so more oil is thrown out versus staying in the cover.
question: (yes you are more then welcome to do as you feel is best as it IS YOUR hard earned $$$) why??? I don't mean as in Why do you want it....I mean why are you going to waste money??? even if a tiny bit of oil did make it into the engine it would be burned up by design of the engine, the diesel engine originally was designed to run off peanut oils....I under stand the idea behind what your saying, but I looked at mine and while there was some oil its not causing harm in any thing...
SARDiverDan
I love the way you made your can. That is exactly what I was looking for. I did a search but came up with nothing. Maybe cause it was old or catch can was not a hit. But that was very nice. I just want to reclaim the oil and not have wet intake tubes and it going into the turbo. I would rather keep in in the crankcase if I can.
hotrodfeguy... note that SARDiverDan's truck lives in sunny and warm San Diego, and you have a Blizzard snow plow on your Green Bay Wisconsin truck. Northern Lake Michigan. Burrrr. The under the truck CCV plumbing that worked for him may not work for you. Your lines might freeze, which could create problems with crankcase pressure venting.
Here is a CCV filter that lives inside the warm engine bay on top of the valve cover:
It was designed by Racor specifically for the 7.3L engine. Sitting on top of the valve cover where the original doghouse was, this filter uses the engine itself as the "catchcan".
I googled it just now, and see that the best price at the moment is with a fisherman's marine supply outfit... which makes sense, since there was a marine version of the 7.3L.
I paid around $289 at TDS Warehouse, so I'd be all over $216 that these guys have it for. I know it is more than a few fittings at Home Depot, but around 10 years ago I had a chance to speak with the engineer at Racor who designed the valve cover mechanism that mounts and unmounts the filter housing, and as a result of what I learned from him have a healthy respect for the nuances of crankcase pressure regulation. Designing that quick release bracket, from fitment to material selection, was not a trivial task either, but the end result of perfect fit is self evident in my photo.
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