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Old 03-24-2013, 04:57 PM   #1
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Closed crank case vent system conversion kit for C-7

Many of you followed my little thread on my MacGuyver idea on slowing down or possibly stopping (doubtful) the blow-by mist that exits from the slobber tube on our '04 Itasca Horizon, C-7 equipped rig. Well, I've not got a chance to get out on a long run to test my theory. It's on the list, the test that is. Anyway, in my efforts to learn more about the C-7, I came upon an article or, a paragraph that was talking about a closed crank case conversion kit that's sold by the local either CAT or Freightliner dealer.

Since then, I've not been able to go back and find that little article or short writeup on it. I think, there was even a part number for it for when you call your local CAT dealer. But, since the brain is like anything else on this body, USELESS, I can't remember where I'd seen it, the article that is.

Many people talk about the slobber tube and or blow-by tube on these motors and the effects of their deposits on radiators, cars, etc. But, no one's mentioned anything about one of these conversion kits. First off, anyone got one? Second, if so, how's it work and has it alleviated the mist etc. from the tube? Thanks

2004 ITASCA HORIZON 36GD, 2011 GMC Sierra 1500 4x4 Toad '08 GL 1800 Gold Wing
Retired-29.5 yrs, SDFD, Ham - KI6OND
Me, Karla and the Sophie character, (mini Schnauzer)
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Old 03-24-2013, 06:30 PM   #2
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On FMCA there was a CAT Club. As Cat no longer mfg engines for USA Roads the club changed it name to the Diesel Club. They have a web site, I just don't remem ber the link. They have several articles about this fix. good luck.ed

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Old 03-24-2013, 07:07 PM   #3
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Check this link to a Caterpillar guide to crankcase ventilation. Sounds like any attempt to recirculate blow by back into the engine can create more problems than what might be solved by eliminating the slobber tube.


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'98 Gulf Stream Sun Voyager DP being pushed by a '00 Beetle TDI
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