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Old 09-25-2022, 09:10 PM
PCHunt PCHunt is offline
Join Date: Feb 2007
Location: San Diego, CA
Posts: 1,856

The filter element looks dry. It should be oiled with the correct red oil before use. K&N sells the oil as well as selling the filters.
Pete Hunt, [San Diego] VAF #1069
RV-6, T-6G

2022 Donation+, Gladly Sent
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Old 09-26-2022, 07:51 AM
WA85's Avatar
WA85 WA85 is offline
Join Date: Apr 2010
Location: Huntsville, AL
Posts: 178
Default Build a New "No Cut" FAB

You can build a new "no cut" FAB that allows the filter (and upper mount plate) to be installed without having to cut the notch for the carb accelerator pump bulb.
By using Vans new FAB kit and adding an approximately 0.700" spacer between the bottom of the carb and the FAB top mount plate, the mount plate and filter will fit nicely and not require a cut out.
Did this mod on an O-320 with the old style FAB. There is a degree of difficulty in doing this on an RV-A that already has the lower cowl air inlet snorkel complete....but is can be done.
I purchased spacers from Airflow Performance and milled them as needed to achieve the right stand off from the upper mount plate to the carb accelerator pump bulb, the gap was about 0.030" once torqued up with the mount hardware. There was plenty of vertical and lateral space between the lower cowling and the FAB even after lowering the FAB 0.700".
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Old 09-26-2022, 10:16 AM
Ralph Inkster Ralph Inkster is offline
Join Date: Feb 2008
Location: Calgary, Alberta
Posts: 1,960

Note-check that you have the vertical space under the filter housing for a spacer collar. Some lower cowls are tight fit down there.
built a few RVs, rebuilt a few more, hot rodded more, & maintained/updated a big bunch more
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Old 09-26-2022, 11:12 AM
PilotjohnS PilotjohnS is offline
Join Date: Jan 2016
Location: Southwest, USA
Posts: 2,529

Originally Posted by Ralph Inkster View Post
Note-check that you have the vertical space under the filter housing for a spacer collar. Some lower cowls are tight fit down there.
Yup, my lower cowl is tight down there; need to lose some weight before first flight. just saying.
John S

WARNING! Information presented in this post is my opinion. All users of info have sole responsibility for determining accuracy or suitability for their use.

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