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Enya 35 model 5224 and OS max 40sr Empty Enya 35 model 5224 and OS max 40sr

Post  mitchg95 Fri Oct 05, 2012 6:41 pm

does anyone have any info on these engines? They are both rc
the enya is frozen and is soaking in 20% nitro fuel right now

thanks


Last edited by mitchg95 on Fri Oct 05, 2012 7:03 pm; edited 1 time in total
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Post  Jason_WI Fri Oct 05, 2012 6:58 pm

The SF series came out after the FSR series and featured a one piece crankcase. Nice engines. Dont know much about the Enya though. From my experience the Enya's don't seem to hold the resale value like the OS enignes.
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Post  mitchg95 Fri Oct 05, 2012 6:59 pm

i should have looked closer at the os before i posted, it is actually a OS max 40sr
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Post  mitchg95 Fri Oct 05, 2012 7:01 pm

Jason_WI wrote:The SF series came out after the FSR series and featured a one piece crankcase. Nice engines. Dont know much about the Enya though. From my experience the Enya's don't seem to hold the resale value like the OS enignes.

this has a 2 piece crankcase, and the backplate as normal
the enya engine has a 2 piece crankcase but no backplate as the plate is part of the crankcase casting
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Post  mitchg95 Fri Oct 05, 2012 7:15 pm

http://osengines.com/history/osm640/osm-1975-max-40fsr.jpg
the os engine looks like this one
it says it is from 1975
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Post  Ken Cook Fri Oct 05, 2012 8:59 pm

Mitch, the OS SR is a high revving engine with plenty of power. I believe it's a ringed engine twin ball bearing. Some claim it was their favorite OS engine of all time. That engine was made with a rear intake version as well. I always thought the FSR was the front intake version as you show in the picture. The Enya is a well made engine and it has a history of almost 20 years being produced. It's an iron piston engine. Enya engines are notorious for long break in periods. When most people want to throw them out is when you want to take them off of their hands as they're just breaking in. Your version probably has the round case for the r/c carb. The control line version came with a square casting and a plastic insert. The stock venturi's and needle assembly are still factory available if someone decided they wanted to go the control line route. This was a powerful .35 compared to others from that era. The engine came with two heads, a high compression and lower compression head. Ken
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Post  gcb Sat Oct 06, 2012 4:42 pm

Here are mine in CL version:

George

Enya 35 model 5224 and OS max 40sr Enya2910

Enya 35 model 5224 and OS max 40sr Enya3510

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Post  gcb Sat Oct 06, 2012 5:03 pm

As previously posted these engines are iron/steel and need break-in. The fastest way to accomplish this is to give it two minute runs at full lean followed by three minute natural cool-down. This is called heat cycling.

Here are the instruction pages:

Enya 35 model 5224 and OS max 40sr 1enya10

Enya 35 model 5224 and OS max 40sr 2enya10
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Post  mitchg95 Sat Oct 06, 2012 7:39 pm

Ken Cook wrote: Mitch, the OS SR is a high revving engine with plenty of power. I believe it's a ringed engine twin ball bearing. Some claim it was their favorite OS engine of all time. That engine was made with a rear intake version as well. I always thought the FSR was the front intake version as you show in the picture. The Enya is a well made engine and it has a history of almost 20 years being produced. It's an iron piston engine. Enya engines are notorious for long break in periods. When most people want to throw them out is when you want to take them off of their hands as they're just breaking in. Your version probably has the round case for the r/c carb. The control line version came with a square casting and a plastic insert. The stock venturi's and needle assembly are still factory available if someone decided they wanted to go the control line route. This was a powerful .35 compared to others from that era. The engine came with two heads, a high compression and lower compression head. Ken


wow thanks for all the information Ken, how can i tell if my Enya has a high compression head
also were might i be able to find a muffler for my 35? it has muffler mount screws
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Post  Ken Cook Sat Oct 06, 2012 8:10 pm

Mitch this seller on Ebay has a great selection of parts. http://www.ebay.com/itm/ENYA-29-45-SPECIAL-MUFFLER-ASSY-NIP-SM292-/221073002826?pt=LH_DefaultDomain_0&hash=item3378fa514a . That is a very good price for a muffler even with the shipping included as mufflers are quite expensive. As for the head, I could tell by looking at them, but George has one of the heads pictured above. I'm not sure without seeing them side by side. Ken
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Post  mitchg95 Sat Oct 06, 2012 8:25 pm

Ken Cook wrote: Mitch this seller on Ebay has a great selection of parts. http://www.ebay.com/itm/ENYA-29-45-SPECIAL-MUFFLER-ASSY-NIP-SM292-/221073002826?pt=LH_DefaultDomain_0&hash=item3378fa514a . That is a very good price for a muffler even with the shipping included as mufflers are quite expensive. As for the head, I could tell by looking at them, but George has one of the heads pictured above. I'm not sure without seeing them side by side. Ken
Enya 35 model 5224 and OS max 40sr DwbYa
Enya 35 model 5224 and OS max 40sr MleOC
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Post  gcb Sun Oct 07, 2012 3:51 pm

Here is a side by side:

George

Enya 35 model 5224 and OS max 40sr Img_0010
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Post  mitchg95 Sun Oct 07, 2012 6:15 pm

gcb wrote:Here is a side by side:

George

Enya 35 model 5224 and OS max 40sr Img_0010

looks like mine is the one on the right
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