More airboxes
Posted: Tue May 11, 2004 4:41 am
'Things never seem to go to plan on my airplane. The problem is that I
am having to adapt a motor, mount and ancilliaries to fit and there
are no drawings or other installations to copy.
As you may remember I am putting a 145 Scarab onto a Rearwin
Cloudster. I know this is not a Fairchild but the best source of
information I have is here on the forum as some of my installation is
pure F24.
I bought the airplane without a motor as that had been taken for a
WW1 replica (don't get me started on that . . .) and it had been a
145 Warner so I managed to find another and after much searching of
parts and far too much money, I got it rebuilt. Halfway through this
I found that there are long sump and short sump versions and the one
I had was different to the one that came off. Typical. Not only is
the sump different bit the motor uses a different mount. The shot
sump version has a full ring mount that is flattened on the bottom
and the long sump, that I have, has a horseshoe mount. Various group
members helped me get that one sorted but I had to re-engineer my
mount to make it fit.
When I fitted the motor I found that one od the mount bracing tubes
fouled the mixture control and so I had a phenolic spacer made to
lower the carb a little so this would clear. Far easier than trying
to adapt the mount at that stage. (We had to weld up the mount before
the motor had been rebuilt otherwise we might have found this but
there were not many places we could actually put the bracing tube and
it had to be there).
So, all that was sorted, the motor was on and I have been connecting it up.
I managed, as some of you will have read, to track a hot air box down
from Harman Dickerson. This is brand new, never been on an airplane
and I tried it on the motor over the weekend. Guess what? It doesn't
fit.
It fouls the exhaust and rocker covers. I don't think that this is
due to the carb being lower as if it had not fouled the rocker cover
it would have been fouling something else on the cylinder and even
then it would still have hit the exhaust, only further up.
So, the question for the Warner Gurus here is: Have you had
experience with this. Could I just have the wrong type of heat box
(for example would mine have fitted the short sump motor) or can
anyone think of a way around this. I think my alternatives are to
have a heat box made to fit the space which means a lot of messing
around and I don't want to waste the time as I want to go fly. I only
have a few connections to make on the motor, the baffles to fit and a
cowling to finish and I can have this ready for flying. This is so
frustrating!
So, any suggestions gratefully received. Include your phone number
and time zone and I might well call you to talk about it.
Melvyn Hiscock'
am having to adapt a motor, mount and ancilliaries to fit and there
are no drawings or other installations to copy.
As you may remember I am putting a 145 Scarab onto a Rearwin
Cloudster. I know this is not a Fairchild but the best source of
information I have is here on the forum as some of my installation is
pure F24.
I bought the airplane without a motor as that had been taken for a
WW1 replica (don't get me started on that . . .) and it had been a
145 Warner so I managed to find another and after much searching of
parts and far too much money, I got it rebuilt. Halfway through this
I found that there are long sump and short sump versions and the one
I had was different to the one that came off. Typical. Not only is
the sump different bit the motor uses a different mount. The shot
sump version has a full ring mount that is flattened on the bottom
and the long sump, that I have, has a horseshoe mount. Various group
members helped me get that one sorted but I had to re-engineer my
mount to make it fit.
When I fitted the motor I found that one od the mount bracing tubes
fouled the mixture control and so I had a phenolic spacer made to
lower the carb a little so this would clear. Far easier than trying
to adapt the mount at that stage. (We had to weld up the mount before
the motor had been rebuilt otherwise we might have found this but
there were not many places we could actually put the bracing tube and
it had to be there).
So, all that was sorted, the motor was on and I have been connecting it up.
I managed, as some of you will have read, to track a hot air box down
from Harman Dickerson. This is brand new, never been on an airplane
and I tried it on the motor over the weekend. Guess what? It doesn't
fit.
It fouls the exhaust and rocker covers. I don't think that this is
due to the carb being lower as if it had not fouled the rocker cover
it would have been fouling something else on the cylinder and even
then it would still have hit the exhaust, only further up.
So, the question for the Warner Gurus here is: Have you had
experience with this. Could I just have the wrong type of heat box
(for example would mine have fitted the short sump motor) or can
anyone think of a way around this. I think my alternatives are to
have a heat box made to fit the space which means a lot of messing
around and I don't want to waste the time as I want to go fly. I only
have a few connections to make on the motor, the baffles to fit and a
cowling to finish and I can have this ready for flying. This is so
frustrating!
So, any suggestions gratefully received. Include your phone number
and time zone and I might well call you to talk about it.
Melvyn Hiscock'