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Re: Europa-List: Engine mount bolt loosens

To: europa-list@matronics.com
Subject: Re: Europa-List: Engine mount bolt loosens
From: Alan Burrill <alanb@dpy01.co.uk>
Date: Sat, 4 Jan 2025 10:08:24 +0000
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A good start to answering you question is the Europa Engine Installation Manual.

PNG image

Alan Burrill
Sent from my iPad

> On 26 Dec 2024, at 01:21, JonathanMilbank <jdmilbank@yahoo.co.uk> wrote:
> 
> --> Europa-List message posted by: "JonathanMilbank" <jdmilbank@yahoo.co.uk>
> 
> This is the fourth time in over 27 years that I'm removing a Rotax 912 from 
> my aircraft to get something attended to. Each time that I've installed an 
> engine in the past, I inserted and tightened the 4 bolts securing the frame 
> to the crankcase without using Loctite or grease. I've always simply 
> tightened them, not using any specific torque setting, but simply tightening 
> them to a degree which seems "plenty enough".
> 
> For the first time in over 1500 hours, I've found one bolt which loosened 
> since the last 50 hour inspection. So my question is whether to use Loctite 
> when reinstalling the engine and what number Loctite do you recommend?
> 
> My instinct is to use fairly low strength Loctite, in case the next time of 
> engine removal proves to be near impossible to get the bolts out.
> 
> 
> 
> 
> Read this topic online here:
> 
> http://forums.matronics.com/viewtopic.php?p=515168#515168
> 
> 
> 
> 
> 
> 
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