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10-25-2006, 06:46 AM
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Join Date: Mar 2005
Posts: 704
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Impulse Mag...Top/Bottom/Both
OK, I've seen/heard/read/dreamed (stretching it there:-) about putting the impulse mag harness on the top plugs only with the right mag (looking at it from the the rear of the engine) on the bottom only. Obviously, the harnesses are marked T4, T2, B3, B1 and B4, B2, T3, T1. Put them is this orientation, the arguement is you get a more consistantly close drop between left and right. The assumption; the bottom plugs are more likely to get oil fouled due to gravity.
Current pros, cons to harness indicated orientation or top/bottom only???
Just food for thought after looking at a one mag/electronic setup where the builder did the electronic on top plugs only and mag on bottom plugs only.
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10-25-2006, 06:00 PM
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Join Date: Mar 2005
Posts: 704
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Another quick question. Does anyone have a shot of any super special mag harness passthroughs (rear baffle), such as any from hot rod shops? I'm looking for something other than a hole and RTV.
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Originally Posted by BlackRV7
OK, I've seen/heard/read/dreamed (stretching it there:-) about putting the impulse mag harness on the top plugs only with the right mag (looking at it from the the rear of the engine) on the bottom only. Obviously, the harnesses are marked T4, T2, B3, B1 and B4, B2, T3, T1. Put them is this orientation, the arguement is you get a more consistantly close drop between left and right. The assumption; the bottom plugs are more likely to get oil fouled due to gravity.
Current pros, cons to harness indicated orientation or top/bottom only???
Just food for thought after looking at a one mag/electronic setup where the builder did the electronic on top plugs only and mag on bottom plugs only.
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10-26-2006, 04:54 PM
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Join Date: Jan 2005
Location: Auburn, WA
Posts: 668
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Quote:
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Originally Posted by BlackRV7
Another quick question. Does anyone have a shot of any super special mag harness passthroughs (rear baffle), such as any from hot rod shops? I'm looking for something other than a hole and RTV.
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Here are the versions I used to pass the wires through...
Baffle Seals from Aircraft Spruce
__________________
Andy Karmy
Covington WA
RV-8 - Flying!
RV-9A - sold
Dec 2019 Paid
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10-26-2006, 06:47 PM
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Join Date: Jan 2005
Location: 57AZ - NW Tucson area
Posts: 10,011
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Color
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Originally Posted by akarmy
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Yes... but my two-hole ones were delivered in a pretty baby blue color.... 
gil in Tucson
__________________
Gil Alexander
EAA Technical Counselor, Airframe Mechanic
Half completed RV-10 QB purchased
RV-6A N61GX - finally flying
Grumman Tiger N12GA - flying
La Cholla Airpark (57AZ) Tucson AZ
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