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John, First: Great comments, I appreciate your insight. Wanted to give you abit more history on my problem regarding your input. During my last annual my IA checked all the items you listed & more(rings, seal, position of vent, vacuum, mismarked dipstick, logs/history, carb, head/jug gaskets. We could find no cause for the "blow-by". I have spent literally hundreds of dollars to correct the problem "by the book". Now I am searching for answers wherever I can find them. The only reason we could come up with for the blow-by was the recent TOP O/H with new Millenniums cylinders was 'increasing crankcase pressure'. Reading through back issues of the Coupe Newsletter alerted me to the procedure of extension brazed on the vent tube at the engine. It seemed reasonable to me and if that fails I am going to look at adding an air/oil separator. They are approved and NOT illegal. I know it may seem "fastidious" to you but my plane is a source of IMMENSE pride to me and I will not live with a dirty aircraft. Thanks for your insight- Anthony N5663F -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Sent: Tuesday, January 09, 2001 12:09 PM To: [EMAIL PROTECTED]; [EMAIL PROTECTED] Cc: [EMAIL PROTECTED]; [EMAIL PROTECTED] Subject: Re: [COUPERS] Re:Oily Belly: In a message dated 1/8/01 11:41:16 PM Eastern Standard Time, [EMAIL PROTECTED] writes: > "M-20 makes a air/oil separator for 300.00 (uninstalled). Has anyone > had any > luck with this expensive fix?" I've said this before, and I'll say it again, at the risk of ticking off some folks. If you feel you need to spend $300.00 on an aftermarket device to correct the oil on the belly, you are either: 1) fastidious or 2) avoiding the real issue, which is why is MY engine blowing all this oil while others are not? The most common problem is a missplaced vent tube. Other issues generally revolve around excess crankcase pressure. A bad front crank seal can let ram air pressurize the case. Badly worn rings can allow blow by to pressurize the case. You don't want to gloss over those 2... JMO, ducking back under the table.. John __________________________________________________ To unsubscribe from this list please send mailto:[EMAIL PROTECTED] ____________________________________________________________ T O P I C A -- Learn More. Surf Less. Newsletters, Tips and Discussions on Topics You Choose. http://www.topica.com/partner/tag01
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