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140/164 Series General Forum for the Volvo 140 and 164 cars |
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mayo in rocker coverViews : 1227 Replies : 7Users Viewing This Thread : |
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Dec 19th, 2007, 16:51 | #1 |
New Member
Last Online: Apr 17th, 2008 17:09
Join Date: Mar 2007
Location: moretonhampstead
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mayo in rocker cover
Hi, my B30A started to produce a lot of creamy mayo in the rocker cover for about 2 months. There is no oil in the cooling water and vice-versa. The car works fine and doesnt seem to use water. Any idea?
Thanks, Laurent |
Dec 19th, 2007, 16:53 | #2 |
SWV Benefactor
Last Online: Jan 30th, 2013 13:44
Join Date: Dec 2001
Location: Newport, South Wales
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Are you using the car much? Any long journeys?
If not, take it for a blast down the motorway - it's a build up of condensation caused by short journeys... |
Dec 19th, 2007, 17:15 | #3 |
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Last Online: Apr 17th, 2008 17:09
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Location: moretonhampstead
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Thanks for quick answer. The car is used daily by my wife to do about 30 miles in slow Devon lanes. I thought about condensation, but in 20 years of motoring, I never saw such a large quantity of mayo. When I removed the cover last Sunday, it was all covered with a 4/5 mm of the stuff !!! I ll try to give it a good run and see. Thanks, Laurent
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Dec 20th, 2007, 08:53 | #4 |
Master Member
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It could be that the carterventilation is blocked. Check the oiltrap and the tube between it and the airfilter. Also check the tube between oilfillercap and manifold. If you find the cure it's better to replace oil + filter.
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Dec 20th, 2007, 08:56 | #5 |
Rogerthechorister
Last Online: Dec 16th, 2023 02:15
Join Date: May 2006
Location: Rochester
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Flush
Flush and change oil might help.
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Dec 20th, 2007, 10:07 | #6 |
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Last Online: Apr 17th, 2008 17:09
Join Date: Mar 2007
Location: moretonhampstead
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It is a South African built 164, and, among other oddities, the crankcase ventilation inlet is not on the distributor side of the engine but I dont know where. Anybody any clue ?
Thanks all for your help, Laurent |
Dec 21st, 2007, 10:54 | #7 |
Master Member
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Do you mean the fitting for the oiltrap is plugged off? Or is there no possibility to put a oiltrap as there is no fitting? There must be some kind of crankcase ventilation, check for a hose running from the airintake and follow that.
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Dec 22nd, 2007, 10:20 | #8 |
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Last Online: Apr 17th, 2008 17:09
Join Date: Mar 2007
Location: moretonhampstead
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Hi, the crankcase ventilation on early B30 engine was different. It consisted of 2 pipes on the rocker cover, one air inlet and one oily gases outlet. The system was not very efficient because of condensation/mayo build up and I found out in
http://www.volvo1800chassis.com/work...op_engDir=DESC that Volvo issued a bulletin to modify these engines with the side oil trap. I am going to try that, and hopefully, that will be the end of the mayo in my engine..... |
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