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Alignment of engine mount holes seem off by quite a bit.

 
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ivdiggs(at)gmail.com
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PostPosted: Tue May 04, 2010 9:28 pm    Post subject: Alignment of engine mount holes seem off by quite a bit. Reply with quote

Dear RV-10 list readers,

I've been building my RV-10 for about a year and a half. It's time to install the engine mount and I was shocked to find the mounting holes are about 3/16" to 1/4" off from the pre-drilled holes in the firewall. I'm wondering if this is typical or if my mount was build a little off. If anyone out there knows if this is normally what is expected please let me know. Everything else in this excellent kit has fit very well and it's not my intention to speak poorly of the kit or Vans in any way. It's just surprising to find a mis-alignment so great in an area I would consider to be one of the most important. I'm tempted to try chasing the holes out but which ones do I align it with first? Everyone's comments and experiences are welcome.

Thank you.

Matthew Collier
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Lew Gallagher



Joined: 04 Jan 2008
Posts: 402
Location: Greenville , SC

PostPosted: Wed May 05, 2010 4:21 am    Post subject: Alignment of engine mount holes seem off by quite a bit. Reply with quote

Hey Matthew,

Ours was a very close fit. Three holes perfect, the last hole with minimal persuasion. I think I'd give Van's a call first before chasing the holes and get their opinion about bending the mount to fit the holes.

Later, - Lew
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speckter(at)comcast.net
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PostPosted: Wed May 05, 2010 4:29 am    Post subject: Alignment of engine mount holes seem off by quite a bit. Reply with quote

These mounts, actually mounts from most kit vendors, are off by a bit. Because of manufacturing and the welding process, some miss alignment occurs. Install the bolts in the areas that are the most inflexible, the center ones, and then work your way around to get the others in. I have not heard of any folks who were unable to get them in, it just takes holding your mouth just so and persuading it to move over a bit.

Gary Specketer


From: owner-rv10-list-server(at)matronics.com [mailto:owner-rv10-list-server(at)matronics.com] On Behalf Of Matthew Collier
Sent: Wednesday, May 05, 2010 1:15 AM
To: rv10-list(at)matronics.com
Subject: Alignment of engine mount holes seem off by quite a bit.


Dear RV-10 list readers,

I've been building my RV-10 for about a year and a half. It's time to install the engine mount and I was shocked to find the mounting holes are about 3/16" to 1/4" off from the pre-drilled holes in the firewall. I'm wondering if this is typical or if my mount was build a little off. If anyone out there knows if this is normally what is expected please let me know. Everything else in this excellent kit has fit very well and it's not my intention to speak poorly of the kit or Vans in any way. It's just surprising to find a mis-alignment so great in an area I would consider to be one of the most important. I'm tempted to try chasing the holes out but which ones do I align it with first? Everyone's comments and experiences are welcome.

Thank you.

Matthew Collier

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daveleikam(at)wi.rr.com
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PostPosted: Wed May 05, 2010 5:00 am    Post subject: Alignment of engine mount holes seem off by quite a bit. Reply with quote

I did not have too much trouble aligning the holes as I remember. It did take a small amount of persuading but not too bad. I just started installing the bolts and everything began to align. I did hear of at least one mount that was replaced by Van's however.

Dave Leikam
RV-10 #40496
N89DA
Muskego, WI

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Bob Turner



Joined: 03 Jan 2009
Posts: 885
Location: Castro Valley, CA

PostPosted: Wed May 05, 2010 9:32 am    Post subject: Re: Alignment of engine mount holes seem off by quite a bit. Reply with quote

I had the same problem. Per Vans' advice I used a clamp to pull the mount over far enough that the firewall hole was still not centered, but completely within, the engine mount hole. Then I match drilled it.

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