Thanks all. Whoever installed my tank didn't install any sort of flanges or other restraining devices at the rear bulkhead to secure the baggage compartment covers, so their back edges and the tank are floating. If anyone gets a chance I would appreciate a photo or two so I can fabricate something.
There are two fiberglass angles creating a flange at the front of the tank under which the covers fit. These are attached to the back side of the seat bulkhead with rivnuts and machine screws. Naturally the machine screws were seized or the rivnuts spun so I spent an hour or two grinding off the screw heads so I could remove the flanges. I have a hard time believing that rivnuts are a solution for a structural application. Looking forward to pulling the tank tomorrow. May be an issue due to some fiberglass buildup behind the shoulder harness fittings from someone's indeterminate repair. Currently an interference fit. I hate cleaning up other people's messes on airplanes. Thanks for all of your insights. M On Sep 3, 2017 6:08 PM, "Ian Williams" <[email protected]> wrote: > The reason I suggested to remove the canopy is that it is real easy to > remove and yes, I did crack the rear window !@#@#$ . > > Best regards > > > > Ian W. > > > > *From:* [email protected] [mailto:[email protected]] > *Sent:* Monday, 4 September 2017 10:44 a.m. > *To:* [email protected]; Mike Collins > *Subject:* Re: Re: [DOG mailing list] Fuel tank removal > > > > I forgot to mention that we have a fibreglass tank that replaced an ally > one and same method worked with both. > > > > > > > > > > > > > > > > On Monday, 4 September 2017, 8:28:14 am AEST, Mike Collins < > [email protected]> wrote: > > > > > > If you have a new aluminium tank it just rests very snugly on (from > memory) five or six fiberglass covered supports that are attached to the > fuselage. > > The passenger luggage panels are what hold the tank in place together with > the fuel filler system - there are no bolts! > > Mike > > > ------------------------------ > > *From:* [email protected] <[email protected]> on behalf > of Michael Stockhill <[email protected]> > *Sent:* 03 September 2017 18:52 > *To:* [email protected] > *Subject:* [DOG mailing list] Fuel tank removal > > > > It looks like I need to pull my Dimona fuel tank to route ADS-B antenna > coax. For the life of me I can't see how the tank is secured to the > airframe. Where are they hiding the bolts etc.? > > > > Thanks > > > > M Stockhill > > Polson MT >
