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Old 05-16-2018, 03:49 PM
dave4754's Avatar
dave4754 dave4754 is offline
Join Date: Oct 2009
Location: Edson, Alberta, Canada
Posts: 445
Default Carb Heat on O-320 lycoming

Has anyone had any trouble with putting the carb heat over the Vans FAB door on the top plate
Dave Cobb
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Empennage RV 7 - Tipper
Wings complete

Fuse nearing completion, Canopy complete
AME reviewed and repaired O-320-Lyc installed
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Old 05-16-2018, 04:48 PM
vetterman vetterman is offline
Join Date: Oct 2006
Location: TX
Posts: 41
Default Carb heat

Give Rick at Robbins Wings a call he makes a transition unit that works well 303-423-7002
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Old 05-16-2018, 06:36 PM
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N941WR N941WR is offline
Join Date: Jan 2005
Location: SC
Posts: 11,808

Doesn't the transition piece come with the kit?

They also sell a flapper valve that works with the above transition piece. (I couldn't find the part number.)
Bill R.
RV-9 (Yes, it's a dragon tail)
O-360 w/ dual P-mags
Build the plane you want, not the plane others want you to build!
SC86 - Easley, SC
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Old 05-16-2018, 06:51 PM
YellowJacket RV9 YellowJacket RV9 is offline
Join Date: Oct 2012
Location: Clearwater, FL / KZPH
Posts: 1,159

Are you using the new style crossover exhaust with new heat muff? If so, it doesn't align with the way the plans have you build the carb heat intake in the FAB - it also ends up very close to it. Is this the problem you are referring to?

If so, I ended up moving the carb heat control cable to the pilot's side of the FAB, and moved the flapper valve and intake adapter to the passenger side, so it would match up closer. This allows the very short section of SCAT tubing to line up better. I had to remake the steel arm that controls the flapper because it was backwards, but other than that no big deal.

Chris Johnson
RV-9A - Done(ish) 4/5/16! Flying 4/7/16
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