Mailing List flyrotary@lancaironline.net Message #9566
From: Steve Brooks <steve@tsisp.com>
Subject: RE: [FlyRotary] Re: engine mount
Date: Thu, 8 Jul 2004 16:46:07 -0400
To: 'Rotary motors in aircraft' <flyrotary@lancaironline.net>
I ditto John's comments.  I used the Permatex Ultra-Gray RTV on the mounting
plate, both sides, and I also have a very small, but annoying oil leak.  No
real volume of oil, but enough to drip down the radiator in 2 spots at some
time.  Maybe 1/2 tablespoon of oil in 6 hours.

Steve Brooks

 -----Original Message-----
From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net]  On
Behalf Of Mike Robert
Sent: Thursday, July 08, 2004 3:50 PM
To: Rotary motors in aircraft
Subject: [FlyRotary] Re: engine mount

John Slade wrote:

>I used RTV only at the engine mount plate join, and I have a small but very
>annoying leak when the nose is down.
>
>
>
>>>Rather than lock washers, wouldn't it make more sense to use drilled
>>>head bolts and safety them together in groups of 2 or 3?
>>>
>>>
>I'd agree with the safety wire. I've noticed that my sump bolts (with lock
>washers) want to undo themselves. I've tightened them twice in 8 hrs. About
>a 1/2 turn each time. I'll be safety wiring them when I redo the sump /
>mount plate / engine join... with gaskets this time.
>
>Regards,
>John Slade
>
>
>
>
>>> Homepage:  http://www.flyrotary.com/
>>> Archive:   http://lancaironline.net/lists/flyrotary/List.html
>>>
>>>
>
>
>
When you do the pan gasket job you may help avoid further leaks by using
a small punch to lightly stipple both mating surfaces on about 1/2"
centers in a random pattern. This keeps the gasket and/or RTV from
"walking" later on and causing those extremely annoying seepages.

       -Mike

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