Motor mounts?

[Tbone]

Has anyone sourced prices on the dynofocal 1 engine vibration mounts? I am getting ready to install the engine and was curious on quality and prices.

[gmcjetpilot]

Originally Posted by Tbone

Has anyone sourced prices on the dynofocal 1 engine vibration mounts? I am getting ready to install the engine and was curious on quality and prices.

Van sells some low cost ones (VPI), but if you want the best get the Lord Corp J-9613-40's. They have better shutdown/startup movement control and in my opinion better quality overall. They do cost more, but if you Google you can find the normal suppliers: Spruce Aircraft, Sacramento Sky Ranch, Chief, WagAero. There are no discounts and prices vary from $100-$112. Just shop around. The best I found with a quick check was Sky Geek: $99.50

http://www.skygeek.com/engine-mount-mooney.html

Van does not sell *"Lord" dynafocal mounts; he sells a lowest bid third brand, VIP, not even Barry Controls.

Regardless if you get the "equivalent" to Lords J-9613-40 in another brand, like Berry it will not be the same. Lord is the only one with a silicon filled damper around the spacer, which dampens large scale motion (see pic below). However in flight the silicone damper "de-couples" from normal vibration. Not a put down of Berry Controls, but they tried to copy this low motion design by just increasing the stiffness of the rubber. Thus people complain of vibration in flight with Berry mounts. Lord has the patent on this.

The down side Lord's go for about $100, Berry about $77 and what ever Van's cost, like $60 each. So you might pay about $160 more total? No big deal or savings if your fillings are rattling. Also less vibration during start and shut down means less cracked air boxes, baffles, oil coolers and fretting hoses & wires.


None of the other mounts have that silicon spacer/damper.


Typical spacer with out a damping spacer sleeve.


* Van does sell conical mounts for $99 each. I do believe these are "Lord" J-1552's, which are also awesome, for the conical engine. If you have a conical mounted engine, never use plan bushings, it's horrible set-up. Bushings may only cost $7.50 for each corner but you will not like it. It's a big bullet to spend $400 verses $30 in this case but its worth it. I had a RV-4 with conical mounts and it was NIGHT and DAY with the Lord mounts v bushings.

[coastalflyer]

How do you know which Lord part#? There are so many! Is the J-9613-40 the right one for all 320/360 Dynafocals?
Thanks for the info.

[Radomir]

That's the part # I used for my 360, and it worked out just fine. I got 'em from SkyGeek...

[dpansier]

I took George?s engine mount recommendation and purchased the Lord J-9613-40 from Sky Geek and they fit perfectly on my Barrett 390.
Don

[Caveman]

Anyone know if Van's engine bolt set works with the Lord mounts as well as the mounts Van's sells? I hope so 'cause that's what I've got... Van's bolts and Lord mounts.

[Radomir]

Yes.. it works great.

[Tbone]

Thanks for the reply. Found the Lords for $96.28 @ Aircraft supply. Ordered them and the bolts from Vans.

[gasman]

Can the mounts be changed one at a time?

If so, in what order... 6A O320 new lord mounts...............Thanks

[randylervold]

I'm interested in retrofitting a set of Lord mounts to my IO-320 RV-3B. Short background: I built an RV-8 which I finished in 2001 and used whatever mounts Van's was selling at the time, I believe they were Barry. When fitting the cowl I allowed for 3/16" engine sag which never happened, at least not as of 400 hrs. When I built my -3 I also bought the mounts Van's was selling, probably in 2005, which were now VPI. This time I really didn't allow for any sag but of course it sagged about 3/16" after about 30 hrs. Sheesh.

Anyway, I'm thinking about retrofitting Lords. Do they sag, and is there a noticable difference?