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grs-pms(at)comcast.net
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 Posted: Sat Jun 24, 2006 8:38 pm Post subject: Stratus engine mount |
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I'm getting some good responses to my question/complaint about the engine mount. Thanks to everyone who has responded so far.
Don, the misaligned hole in my mount is about 5/16 out, too much to correct by enlarging the hole. Frank, I agree that Zenith should make it right, but I don't expect they will, based on previous experience. I can get it to a certified aircraft welder who has built a steel tube airframe of his own, and so knows the problems. Near his shop there is a place which will bead blast it clean and ready to prime after welding. I can get it done and back on the airplane in a few days, and move on. I'm guessing that you won't have such problems with Van.
George
Do Not Archive
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rlee468(at)comcast.net
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| Posted: Sun Jun 25, 2006 7:44 am Post subject: Stratus engine mount |
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I don't like to read this kind of stuff about Zenith. I'm sure you folks don't either.
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frank.hinde(at)hp.com
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| Posted: Sun Jun 25, 2006 6:14 pm Post subject: Stratus engine mount |
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Funny you should say that George...But I DID have exactly that problem with Van's...It was my error. The kit is so good that evry hole lines up...The problem is this can lead you to a false sense of security. I Found they pilot drill the firwall for the mount and of course as everything always lines up I just opened them out to full size.
Half a bolt width out on each side....ARRRRRGH!
Had to drill out the rivets holding the two lower weldments in place and weld a pice of 4130 over the hole and redill to MATCH the mount.
Can we say Dumba**?...yes we can!
Sounds like you have an inexpensive solution to your problem though.
Cheers
Frank
Do not archive
HDS sold
Rv7a...STILL painting!
From: owner-zenith-list-server(at)matronics.com [mailto:owner-zenith-list-server(at)matronics.com] On Behalf Of George Swinford
Sent: Saturday, June 24, 2006 9:31 PM
To: zenith-list(at)matronics.com
Subject: Stratus engine mount
I'm getting some good responses to my question/complaint about the engine mount. Thanks to everyone who has responded so far.
Don, the misaligned hole in my mount is about 5/16 out, too much to correct by enlarging the hole. Frank, I agree that Zenith should make it right, but I don't expect they will, based on previous experience. I can get it to a certified aircraft welder who has built a steel tube airframe of his own, and so knows the problems. Near his shop there is a place which will bead blast it clean and ready to prime after welding. I can get it done and back on the airplane in a few days, and move on. I'm guessing that you won't have such problems with Van.
George
Do Not Archive
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grs-pms(at)comcast.net
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| Posted: Sun Jun 25, 2006 7:34 pm Post subject: Stratus engine mount |
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Hi Frank:
Based on the replies that I've had, I believe that even if tube assemblies are properly jigged up before welding, residual stresses may make things to move around when the assembly comes out of the jig. Maybe mine moved around more than most. I'm surprised that you had a problem, considering Van's reputation. A lesson for us all...
I'm going to ask my welder about all this. He built a Starduster from plans (then lost his medical). He'll know about distortion and how to correct it.
George
Do not archive
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