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Aug 02, 2011, 01:21 AM
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Joined Oct 2010
31 Posts
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DLE 30 Rear Carb On a Yak 54 mounting issue
Hi,
i bought a DLE 30cc rear carb to put on my Flight-model Yak 54. The plane is designed for the DLE side carb version and now my new engine has engine mounting standoffs that are longer than the one with the side carb. This will lead the engine to be installed 2-3 cm forward from the one that flight-model wants.... The question is whether i keep this setup or do you think i should put shorter mounting standoffs, cut the firewall and put the carb behind the firewall inside the airframe? Thank you |
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Aug 02, 2011, 05:22 AM
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Kansas City
Joined Apr 2010
383 Posts
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Purchase a set of standoffs that will fit your need. Try a search engine. There are several companies that sell them. Cermark comes to mind first.
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Aug 02, 2011, 07:57 AM
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United States, TX, Killeen
Joined Jun 2007
111 Posts
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DLE 30 Rear Carb
Before you go and make another purchase, if you have the plane all together, check the CG and see if it is tail heavy or nose heavy. 2 - 3cm will only make
a slight difference in the CG. Check the clearance of the cowl from the back of the spinner ( if used ). If the clearance is pretty pronounced, then a shorter standoff might be called for. |
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Aug 02, 2011, 04:17 PM
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Joined Oct 2010
31 Posts
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Quote:
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Aug 03, 2011, 12:55 AM
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Germany/Cologne for a while
Joined Jan 2002
563 Posts
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EXTENG; I feel your pain. I had the same problem with a Slipstream MX-2. The rear carb on the DLE 30 makes the engine longer. The solution on my plane was to bore a hole in the firewall to take the carb and throttle/choke levers. Be aware though that this makes the mixture needles almost completely inaccessible. Also on the MX-2 the firewall was only 2 laminations of 1/8 lite ply. The DLE instructions advise a minimum firewall of 3/8 inch presumably with no hole. The ideal solution would be to move the firewall back the extra 30 mm or so and make sure it is 3/8 inch thick.
Best of luck Mark. |
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Aug 03, 2011, 11:53 AM
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Joined Oct 2010
31 Posts
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Thank you all for your suggestions..........
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