GPU accessory case on E185?

Aircraft powered airboat discussion.
TDezso
Southern Airboat Member
Posts: 80
Joined: Tue Jan 10, 2017 9:01 pm

GPU accessory case on E185?

Postby TDezso » Sun Apr 09, 2017 8:36 pm

About to swap to the 185 motor and the mags sit way higher than on the gpu where they sat under my rear seat. I hear the gpu case can be used on the E185. What has to be done to swap them and what has to be machined? Is it worth the work?


Sent from my iPhone using Southern Airboat mobile app powered by Tapatalk

User avatar
John Fenner
Southern Airboat Member
Posts: 2515
Joined: Tue Feb 14, 2012 12:26 pm
Location: Miami(Cuba) Fl.

Re: GPU accessory case on E185?

Postby John Fenner » Mon Apr 10, 2017 10:25 am

Yes, I have done it, basic modification to start with bit tricky part was machining oil pressure relief valve into cover, the rest is like doing a dual mag conversion on a gpu, you will need to machine a crank gear spacer out of .125 aluminum and use a 220 crank and cam gear plus mag drive gears and pins, accessory drive oiling will need to be rerouted vs through different portal than at top of block, custom gasket will need to be made and then of course a sump.
I never finish anyth,,,.

TDezso
Southern Airboat Member
Posts: 80
Joined: Tue Jan 10, 2017 9:01 pm

Re: GPU accessory case on E185?

Postby TDezso » Mon Apr 10, 2017 11:02 am

John Fenner wrote:Yes, I have done it, basic modification to start with bit tricky part was machining oil pressure relief valve into cover, the rest is like doing a dual mag conversion on a gpu, you will need to machine a crank gear spacer out of .125 aluminum and use a 220 crank and cam gear plus mag drive gears and pins, accessory drive oiling will need to be rerouted vs through different portal than at top of block, custom gasket will need to be made and then of course a sump.


Thanks for the info. Turns out the motor I picked up isn't a 185, it's an 0470-15. I was hoping to get the mags to sit under the seat like the gpu did. Might not happen though.


Sent from my iPhone using Southern Airboat mobile app powered by Tapatalk

User avatar
John Fenner
Southern Airboat Member
Posts: 2515
Joined: Tue Feb 14, 2012 12:26 pm
Location: Miami(Cuba) Fl.

Re: GPU accessory case on E185?

Postby John Fenner » Tue Apr 11, 2017 8:48 am

Get with Cecil Field and get an e185 front cover plus gears, it's not that bad of a job.
I never finish anyth,,,.

TDezso
Southern Airboat Member
Posts: 80
Joined: Tue Jan 10, 2017 9:01 pm

Re: GPU accessory case on E185?

Postby TDezso » Tue Apr 11, 2017 10:54 am

John Fenner wrote:Get with Cecil Field and get an e185 front cover plus gears, it's not that bad of a job.

What kind of work is involved with swapping the 185 cover?


Sent from my iPhone using Southern Airboat mobile app powered by Tapatalk


User avatar
John Fenner
Southern Airboat Member
Posts: 2515
Joined: Tue Feb 14, 2012 12:26 pm
Location: Miami(Cuba) Fl.

Re: GPU accessory case on E185?

Postby John Fenner » Tue Apr 11, 2017 11:41 am

You don't need to do the pressure relief valve modification
I never finish anyth,,,.

User avatar
John Fenner
Southern Airboat Member
Posts: 2515
Joined: Tue Feb 14, 2012 12:26 pm
Location: Miami(Cuba) Fl.

Re: GPU accessory case on E185?

Postby John Fenner » Tue Apr 11, 2017 11:43 am

Once all is set in place you will need a set of transfer punches for bolt hole locating to case
I never finish anyth,,,.


Return to “Aircraft Power Only”

Who is online

Users browsing this forum: No registered users and 8 guests