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01-16-2010, 07:48 PM
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Join Date: Oct 2006
Location: Gilbertville, Iowa
Posts: 8
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Andy,
Where did you get the baffling that you used? Did you get the kit from Van's or another way? I am putting a H2AD on the front of a 9A. The BAF-320 parts didn't impress me as being an easy fit.
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01-16-2010, 07:51 PM
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Join Date: Oct 2006
Location: Gilbertville, Iowa
Posts: 8
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Graham,
I was wondering where you got your baffling for your H2AD. Did you get the BAF-320 kit from Van's or a different source? I am putting a H2AD on the front of a 9A and struggling some to say the least. Thanks.
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01-16-2010, 08:21 PM
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Join Date: Sep 2007
Location: Albuquerque, NM
Posts: 659
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Quote:
Originally Posted by mdud
Andy,
Where did you get the baffling that you used? Did you get the kit from Van's or another way? I am putting a H2AD on the front of a 9A. The BAF-320 parts didn't impress me as being an easy fit.
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I used the vans baffle kit. I'll take some more pictures next time I go down to the hangar. Overall it wasn't too big of a deal converting it for use on the h2ad engine. I was really surprised how many of the bolt holes lined up. Places where there were problems: around the engine mount bolts, around the oil filler tube, the attach bolt near jug #3, and the vertical dam around the front. In addition I'm still going to have to go and rivet pieces in to match the contour of this engine.
__________________
Andy Compton, PhD EE
RV-10 - #41414 (building)
RV-9A - N643AC (built,flying,sold,missed)
My blood and sweat, the Wifey's tears
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01-16-2010, 08:40 PM
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Join Date: Dec 2009
Location: Lockhart, TX
Posts: 206
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How is the h2ad different from other models?
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01-16-2010, 08:58 PM
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Join Date: Sep 2007
Location: Albuquerque, NM
Posts: 659
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Quote:
Originally Posted by eric_marsh
How is the h2ad different from other models?
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The h2ad has an integral accessory case, removeable engine mount blocks, barrel lifters, front mounted fuel pump, un-machined front mounted governor pad, stamped rockers, more cylinder head oil flow, a single mag gear driving a dual mag, and a sump that makes an un-modified throttle bracket impossible to fit.
It certainly has installation issues, but they aren't impossible to overcome. It seems like the h2ad cores have been selling for ~$2-3k lately, which makes them attractive. I'd certainly recommend anyone thinking about buying one do some serious research first.
__________________
Andy Compton, PhD EE
RV-10 - #41414 (building)
RV-9A - N643AC (built,flying,sold,missed)
My blood and sweat, the Wifey's tears
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01-16-2010, 09:28 PM
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Join Date: Mar 2006
Location: Dardanup. Western Australia
Posts: 167
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Quote:
Originally Posted by mdud
Graham,
I was wondering where you got your baffling for your H2AD. Did you get the BAF-320 kit from Van's or a different source? I am putting a H2AD on the front of a 9A and struggling some to say the least. Thanks.
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I started with the 0320 baffle kit from Vans. The cylinder end plates fit up as standard and the bolt pattern is the same as other 0320's. Most of the other parts and brackets do fit with some re-work. It just takes more thought, time, cutting and filling to make it all work. I think the baffle kit is a very good place to start from even though it requires a lot of re-work. Andy's and my pictures should give you some good ideas as to whats involved.
Cheers
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01-16-2010, 10:56 PM
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Join Date: May 2007
Location: salem Oregon
Posts: 1,023
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Sale at VANS!
Stopped in at VANS to pick up a part and asked about the baggage tie downs, Page 64 in their 2009 catalog. Their listed at $33 bucks apiece but NOW only $16 each! The rating is 4000 lbs on the package for the tie downs. By the way the last two times I was there I saw THEE MAN DICK, walk the steps upstairs ( not sure whats up there)2 steps at a time!!! Thats Vans for you always trying to save TIME because TIME is money. If you ever get to go back into warehouse its like Fort Knox, you just want to rub-up against all those RV parts! The people are always wonderful too! Ron in Oregon
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02-16-2010, 02:29 PM
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Join Date: Feb 2010
Location: Syracuse NY
Posts: 39
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I too found the Van's kit a good start too. Joggled it in front of oil filler tube too. The rest fabricated like others mentioned and I like the soft red silicone baffle material to seal the cowl. Yours looking good..(as others)
FWIW ...I saw on your photo the upper cowl piano hinge & celeco's for fiberglass cowl section to firewall installation. I think you will need 2 doors, to access the hinge pins and the oil filler ???.... or one very large door to get your arm in there to pull hinge pins? And I believe folks have talked on having big doors and noticable raised effect at high speeds like flexing & air gaps? I am old, memory is same....LOL ...but I did reinforce even the small door and surrounding area well... epoxied in with alum & rivets...
To avoid the 2 door route (wisdom from others I pass along) .... I did a small oil door directly over filler. Then I used cam locks for the top row...as per these photos.....The normal piano hinge down the top to bottom...and the entire bottom fiberglass nose part....
I have never broken a piano hinge section, nor broke or found a cam locks up during preflights or after.. they stay put...my top lid comes on/off easily for service and fast. Many of our local RVrs wished they did this too...

Last edited by NYFlapjack2 : 02-16-2010 at 02:32 PM.
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02-16-2010, 08:01 PM
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Join Date: Sep 2007
Location: Albuquerque, NM
Posts: 659
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The camlocks look like a great idea. I deviated from the plans a bit when I cut my hinges. Because the oil door will be closer to centerline, I made the two hinge sections almost even. The last time I had the cowl fitted I noticed a bit of pillowing where there wasn't any hinge. I was thinking of going with the small 1.5"x3" access door for the hinge pins, and it could have a joggle to hold the cowl even with the forward top skin.
The camlocks seem like an elegant alternative though, and I'm not fully committed (riveted) to the hinges yet. I'll have to do some research.
I posted some new photos in my baffles gallery the other day with annotations. Hopefully someone will find the pics useful. Graham's album was a huge help. I'm pretty much copying his fuel line routing.
__________________
Andy Compton, PhD EE
RV-10 - #41414 (building)
RV-9A - N643AC (built,flying,sold,missed)
My blood and sweat, the Wifey's tears
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02-16-2010, 08:54 PM
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Join Date: Jan 2005
Location: Littleton, CO
Posts: 367
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H2AD
Hi Andy,
I have and H2AD in my 9A which I have been flying for 682 hours now. I can send you some pics of my installation when I get back home if you like? I am out of town and limited as to the internet right now. I can give you a call also (might be easier). I have no concerns with my installation. Sure it was some work to fit the baffles etc, but the engine has performed well. Mine was a factory overhaul with 780 hours on it at time of purchase. ($5,000)
Regards,
__________________
Scott Mills, Front Range, CO
N339A - 1900 Hours!! since 9/11/05
Like Us on Facebook: https://www.facebook.com/ScottandDeb...tures/timeline
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