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09-07-2012
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Established Member
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Join Date: Nov 2007
Location: Port Macquarie NSW
Posts: 228 What Jeep do I drive?: WH
Likes: 7
Liked 6 Times in 5 Posts
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WH CRD oil leak
Hi guys
Help please.
I have oil being pumped out of the dip stick tube when the motor is under load & operating at speed - say accelerating at ~130kph.
Jeep dealer says it's caused by crankcase pressure build-up which isn't being 'released'.
Anyone heard of this/ suffered this problem.
Probable causes? Solutions?
Problem is current & urgent.
Thanks
__________________
Cheers, Graeme
07 Anniv. CRD, ARB bar, TB-CRD2 chip, SWC, LRA tank, OME kit, snorkel, etc
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10-07-2012
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CrawlerStar
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Join Date: Mar 2008
Location: Syney, North Shore
Posts: 421 What Jeep do I drive?: WH
Likes: 0
Liked 41 Times in 24 Posts
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Fault ERG valve? Previous owner bypassed / blocked?
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10-07-2012
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Grumpy Old XJ Dsl Owner
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Join Date: Jan 2011
Location: Northern Victoria
Posts: 13,839 What Jeep do I drive?: XJ
Likes: 4,611
Liked 6,577 Times in 4,355 Posts
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You may have a blocked crankcase breather. EGR does not cause this.
__________________
98&01XJVMs,06&07KJCRD's,No longer question authority,I annoy it.More effect,less effort.10000Club
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10-07-2012
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Established Member
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Join Date: Nov 2007
Location: Port Macquarie NSW
Posts: 228 What Jeep do I drive?: WH
Likes: 7
Liked 6 Times in 5 Posts
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Does the crankcase have a breather or does it rely upon the breather which returns crankcase fumes etc to the air intake etc? In my case via a Provent.
Thinking it may be either (putting a piston problem as a cause to the side for the moment):
* one of the hoses in the Provent system 'collapses' when prssure gets too high; &
* the swirl control valve is not functioning correctly.
First is easy to check, 2nd is a pretty major job.
Sound feasible?
__________________
Cheers, Graeme
07 Anniv. CRD, ARB bar, TB-CRD2 chip, SWC, LRA tank, OME kit, snorkel, etc
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10-07-2012
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Established Member
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Join Date: Nov 2007
Location: Port Macquarie NSW
Posts: 228 What Jeep do I drive?: WH
Likes: 7
Liked 6 Times in 5 Posts
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An update
Problem appears to be the hose from the Provent to the turbo side - 'collapses when under extreme pressure & returns to normal appearance when cool! Provent itself activates the valve when the outlet pipe is blocked so crankcase gasses etc have nowhere to go!
That's despite hose being encased in a spring & then wrapped in heat resistant foil.
Suggestions on a better hose type appreciated.
__________________
Cheers, Graeme
07 Anniv. CRD, ARB bar, TB-CRD2 chip, SWC, LRA tank, OME kit, snorkel, etc
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10-07-2012
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CrawlerStar
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Join Date: Apr 2007
Location: Pomona Qld
Posts: 450 What Jeep do I drive?: WH
Likes: 239
Liked 43 Times in 35 Posts
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I use heater hoses to and from my oil catch can. Perhaps your hoses are softening under heat? I got the heater hoses from Supercheap.
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10-07-2012
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No Winching
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Join Date: Jun 2010
Posts: 3,145 What Jeep do I drive?: WJ
Likes: 83
Liked 301 Times in 244 Posts
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Quote:
Originally Posted by roscoea26
I use heater hoses to and from my oil catch can. Perhaps your hoses are softening under heat? I got the heater hoses from Supercheap.
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Heater hoses are good for formed bends but are they oil resistant, if not over time they will soften and the problem of sucking flat could return. I,ve never thought heater hose was oil safe but have never tested the theory. Some of those formed bends could be really handy.
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