Today's Message Index:
----------------------
1. 07:15 AM - Re: Understanding the Carbmate (lucien)
2. 07:17 AM - Re: Understanding the Carbmate (lucien)
3. 10:56 AM - EGT/CHT combination guage (LynetteandSteve)
Message 1
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Subject: | Re: Understanding the Carbmate |
kgderosier(at)gmail.com wrote:
> Isn't the idea of syncing up mean to match one to the other??? Wouldn't you just
adjust 1 carb to sync to the other??!!!
>
> Gale D.
> RANS S6S
>
Pretty much what Roger said. Yes the goal is to balance the throttling between
the two carbs, but actually getting there can be quite involved. If you only adjust
one you may or may not end up where you want - they may be balanced, but
both are too far open or closed for an acceptable idle speed or the throttles
don't open all the way or they may try to open too far and pull against the stops,
etc.....
To be honest, the way I did mine when I had them overhauled a while back:
- reattach to the bails by eye. Full throttle looks even, idle looks even, back
out the idle screws so they don't touch the arms.
- attach carbmate
- start the sucker up
- see where Im at and go from there...
;)
That was literally easier than doing all the measuring and fiddling before hand
with the feeler guage, etc. At first startup, sure enough it was pegged with
the LED one one side. A couple adjustments later on one carb I had figured out
which direction I needed to go to achieve a balance. Then, once they were balanced,
I had to adjust both to get the idle speed where it was supposed to be.
That done, I adjusted the idle screws to just touch the arms at idle. Recheck
in the plane, boom, I was done.
Took about an hour and it ended up virtually perfect.
So to me, that's the easiest way. Just stick em on there, set roughly equal by
eye, attach the carbmate and fire that baby up. You have to figure out the direction
and then adjust for correct idle anyway so that's the easiest method in
the end....
LS
--------
LS
Titan II SS
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=337003#337003
Message 2
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Subject: | Re: Understanding the Carbmate |
lucien wrote:
>
> kgderosier(at)gmail.com wrote:
> > Isn't the idea of syncing up mean to match one to the other??? Wouldn't you
just adjust 1 carb to sync to the other??!!!
> >
> > Gale D.
> > RANS S6S
> >
>
>
> Pretty much what Roger said. Yes the goal is to balance the throttling between
the two carbs, but actually getting there can be quite involved. If you only
adjust one you may or may not end up where you want - they may be balanced, but
both are too far open or closed for an acceptable idle speed or the throttles
don't open all the way or they may try to open too far and pull against the
stops, etc.....
>
> To be honest, the way I did mine when I had them overhauled a while back:
> - reattach to the bails by eye. Full throttle looks even, idle looks even, back
out the idle screws so they don't touch the arms.
> - attach carbmate
> - start the sucker up
> - see where Im at and go from there...
>
> ;)
>
> That was literally easier than doing all the measuring and fiddling before hand
with the feeler guage, etc. At first startup, sure enough it was pegged with
the LED one one side and engine was pretty rough. A couple adjustments later
on one carb I had figured out which direction I needed to go to achieve a balance.
Then, once they were balanced, I had to adjust both to get the idle speed
where it was supposed to be. That done, I adjusted the idle screws to just touch
the arms at idle. Recheck in the plane, boom, I was done.
>
> Took about an hour and it ended up virtually perfect.
>
> So to me, that's the easiest way. Just stick em on there, set roughly equal by
eye, attach the carbmate and fire that baby up. You have to figure out the direction
and then adjust for correct idle anyway so that's the easiest method
in the end....
>
> LS
--------
LS
Titan II SS
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=337005#337005
Message 3
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Subject: | EGT/CHT combination guage |
I am looking for another hole to mount an additional flight
instrument in a Kolb Firefly panel. I=99m considering removing the
dual EGT gauge and the dual CHT gauge, and replacing with a combination
EGT/CHT gauge. Am I giving up more than I really should in terms of
Rotax 447 engine operation?
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