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dean.psiropoulos(at)veriz
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 Posted: Sun Apr 01, 2007 9:35 pm Post subject: Lycoming tach drive cover. |
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I'm using a VM-1000 engine monitor that has a hall sensor screwed into the
magneto for tachometer measurements. So...I'm not using the Lycoming
tachometer drive in the accessory case and ordered a cover to place over it.
It's just a small aluminum cap with female threads and a knurled outer
surface to provide a good finger grip. Since it does not have facets like a
nut, I assume one is not supposed to put a wrench on it to tighten. My
question is, is hand tight good enough to keep this cover from vibrating
off? If not should I use something like locktight to make sure it doesn't
come off? Or should I just put some torque seal on it and monitor it? What
happens if this cover were to fall off with the engine running? Would I
lose oil out the hole and if so how fast would it run out? Thanks for the
help.
Dean Psiropoulos
RV-6A N197DM
Closing on first flight.
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Mark Phillips in TN
Joined: 10 Jan 2006
Posts: 431
Location: Columbia, TN
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| Posted: Sun Apr 01, 2007 10:42 pm Post subject: Lycoming tach drive cover. |
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In a message dated 4/2/2007 12:36:48 AM Central Daylight Time, dean.psiropoulos(at)verizon.net writes:
| Quote: | My
question is, is hand tight good enough to keep this cover from vibrating
off? If not should I use something like locktight to make sure it doesn't
come off? Or should I just put some torque seal on it and monitor it? What
happens if this cover were to fall off with the engine running? Would I
lose oil out the hole and if so how fast would it run out? |
Hi Dean-
Used the same contrivance on my O-320. IIRC, I wrapped some tape around it and gave it a good snuggin' with an "Alabama ratchit rench" (small Channellocks) and it is still on the plane with no leaks after 400 hours.� Caint say about the leaking if it fell off as mine hasn't...
Mark
See what's free at AOL.com.
[quote][b]
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From The PossumWorks... |
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Float Flyr
Joined: 19 Jul 2006
Posts: 2704
Location: Campbellton, Newfoundland
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| Posted: Mon Apr 02, 2007 12:27 pm Post subject: Lycoming tach drive cover. |
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Drill a hole (1/16") in the edge of the cap, through the kernelled part, if
it doesn't already have one and lock wire it in place. Is there an "O" ring
associated with this cap? If so make sure the hole you may have to drill is
outside the "O" ring seal.
Noel
[quote] --
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Noel Loveys
Kitfox III-A
Aerocet 1100 Floats |
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dj45
Joined: 25 Jul 2006
Posts: 92
Location: Jackson MI
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| Posted: Wed Jun 20, 2007 10:44 am Post subject: Re: Lycoming tach drive cover. |
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where did you get the cap, Ican't fidn one.
Thank you
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Dan Stanton
N801S CH 801
N226BS CH701
N24DS CH750 |
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dj45
Joined: 25 Jul 2006
Posts: 92
Location: Jackson MI
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| Posted: Wed Jun 20, 2007 10:45 am Post subject: Re: Lycoming tach drive cover. |
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Can't type on this laptop very well either
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Dan Stanton
N801S CH 801
N226BS CH701
N24DS CH750 |
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