Need help with engine mount

[BILL2]

Hi there,

I'm new and happy owner of a long ez. I live in Europe, so please, be clement with my english 

My plane is O235 H2C equipped and engine mounts (J-7401-8) need to be replaced. I contacted AS and they told me they have 19 week of lead time!

Questions are the following:
-Where can I order J-7401-8 shock mount with a normal time for delivery?
-Is it possible to fit another type of shock mounts? I thought to order the same than for O235 L2C.
-If the previous question is yes, which type of shock mount is suitable?

Thank you for your help

Bill

[Tom]

you can try Aviall, or API (aerospace products international)
 

[flyingwaldo]

Are you sure about the number (J-7401-8)?  I can't find it on Spruce's website or catalog, nor any other.  Maybe If you check it, I can see if Sacramento Sky Ranch can get you one sooner, or Wicks, or what the other fellow suggested.

Seems 7402 is more common on O-235.....?

[BILL2]

Hi,

Unfortunatly, type engine mounts is confrmed: J-7401-8.

However, I'm not sure J-7401-8 are the engine mounts required by Rutan. I bought the plane like this and I haven't any document for check if theses mount are suitable. If someone can confirm theses mount were required by rutan it would be a firts step. But I believe that Rutan would have choosen very common parts.

I contacted AS, because theses mounts weren't in their catalog and they reply it was possible to make an order with 19 weeks for delivery.

Is a type of mount is so important? It is easy to find mounts for O235L2C, slightly different from O235H2C...

Bill

[Radioflyer]

Hi Bill2, here are my comments for whatever they're worth...

About 1.5 yr ago I replaced the Dynafocal rubber mounts in my LongEz which has an O-320 engine. The standard Brock Dynafocal engine mount fits both the O-235-L2C and the O-320-E2D. Some O-235 and O-320 engines have a conical mount, but the O-235-L2C uses a dynofocal mount. Now, if you do a little research (as in the Lord Mount or Barry Mount websites/literature) you'll see that a given engine can use different rubber mounts, depending on which aircraft it was installed. So, since you have an experimental, you have some latitude in choosing what mounts to use.
 
Rutan never specified a specific mount, that I know of. So, I poked around and heard that several people were happy with the Aircraft Spruce Catalog p/n 08-03500. These are similar to the Lord mount #J-7402-5 types. They fit my 2-3/4 inch dynafocal rings.  Aircraft Spruce has been selling them for a long time. Apparently, they originally had a bad reputation for detiorating/sagging too quickly. However, they changed formulations or supplier and I think those initial problems have been resolved. They work and I have had no issues with them after about 50 hours. They were also the least expensive set available at about $220 for the eight pieces of rubber and 4 steel spacer tubes.

[BILL2]

Radioflyer,

Thank you very much for your reply. Now, things are clear enough for the newbie I'am 

My plane is fitted with a dynafocal mount, I'm going to order the engine mount with AS.


Fly safe!

Bill