IMAC Delro 2.5M Raven Build

[Pistolera]

I remember going thru that decision process....ending up going ahead and Hysol'ing them in place. Figured I'd carfully mask off the pins and stuff some tissue into the opening when painting.

 

[Terryscustom]

Nice hatch!!

 

[Wacobipe]

I remember going thru that decision process....ending up going ahead and Hysol'ing them in place. Figured I'd carfully mask off the pins and stuff some tissue into the opening when painting.

That is what I'll end up doing I think...too much work just to make it look worse to go the other way!

 

[Dr Evil]

What about gluing in a stud plate so it can be serviced ? ?

 

[Wacobipe]

Back on January 27th I made the claim I'd be doing this step the next day...but since life seems to get in my way at every turn recently...I'm doin' it on the 16th of February instead

ANYWAY...Got some time to get back to the Raven and work on drilling the engine mount holes into the firewall. Earlier I showed how I located the engine based on the front of the fuse as it has both the diameter to match the spinner as well as the thrust angle built into it. that sets the spinner backplate location perfectly and gives me thrust angle.
I determined that the best engine mount position was cylinder exactly down, so I cut clearance in the engine bay hatch for the tiny bit of cylinder that sticks out as well as the spark plug wire...

 

[Wacobipe]

That allowed me to set the final critical position which was rotary angle of the engine in the plane...I the taped the engine block to the prop drive lug so that the engine could not turn from that positon...


So now i have the engine spinner locked in place and the rotary angle of the engine as well....setting everything to allow me to position the firewall to the engine and mark the location precisely!

 

[Jlc]

Looks like you didn't have to cut much cowl too accomodate the single.

 

[Wacobipe]

Next problem I encountered is that the engine bay is too tight to allow me to get much of anything inside to mark engine mount center hole locations...and the carbon fiber is so slick I couldn't find anything to mark it ...

My wife came to my rescue...she had this awesome silver metallic Sharpie (getting these on order tomorrow...they are awesome!dries really quickly too.) so I was able to precisely mark the position of the engine spacers against the firewall, which allowed me to then remove the firewall and drill it properly on the workbench



I got the holes all drilled tonight before a glass of wine called my name and I had to go take care of that I need to cut clearance intothr firewall for canister clearance, ignition wire, throttle and choke control arms, and fuel tubing and then I can Hysol this baby into place for good!

 

[Wacobipe]

Looks like you didn't have to cut much cowl too accomodate the single.

Barely any at all...and it's underneath the plane so you'll never see it (I can't knife edge that close to the ground ...and I don't hover). I'll try to get a photo of it installed with the engine in place.

 

[Wacobipe]

Header Clearance cut into the firewall...