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-   -   asp piston on OS 46FX ???!!!!! (https://www.rcuniverse.com/forum/glow-engines-114/10696334-asp-piston-os-46fx.html)

eladashk 09-01-2011 01:03 AM

asp piston on OS 46FX ???!!!!!
 
<span class="hps" closure_uid_uvaprj="613">Does</span> <span class="hps" closure_uid_uvaprj="614">anyone have</span> <span class="hps" closure_uid_uvaprj="615">experience</span> <span class="hps" closure_uid_uvaprj="616">with</span> <span class="hps" closure_uid_uvaprj="617">replacing OS-46FX </span><span class="hps" closure_uid_uvaprj="618">piston</span> <span class="hps" closure_uid_uvaprj="621">with a set</span> <span class="hps" closure_uid_uvaprj="622">ofASP Piston and Liner Set for S46A Engine</span><span closure_uid_uvaprj="624">?
</span> <span class="hps" closure_uid_uvaprj="625">Does it</span> <span class="hps" closure_uid_uvaprj="626">fit</span> <span class="hps" closure_uid_uvaprj="627">and</span> <span class="hps" closure_uid_uvaprj="628">work?</span> <span class="hps" closure_uid_uvaprj="629">Or is there</span> <span class="hps" closure_uid_uvaprj="630">a problem</span> <span class="hps" closure_uid_uvaprj="631">of</span> <span class="hps" closure_uid_uvaprj="632">matching</span> <span class="hps" closure_uid_uvaprj="633">dimensions??</span>

delman 09-01-2011 06:53 AM

RE: asp piston on OS 46FX ???!!!!!
 
Check with "justengines". The "short engine" parts for OS spares sound just like your idea.


http://www.justengines.unseen.org

w8ye 09-01-2011 07:13 AM

RE: asp piston on OS 46FX ???!!!!!
 
It fits like it was made for it.

Patxipt 09-01-2011 07:17 AM

RE: asp piston on OS 46FX ???!!!!!
 
My flight instructor says he keeps changing piston/liner sets between OS and ASP.

DarZeelon 09-01-2011 10:43 AM

RE: asp piston on OS 46FX ???!!!!!
 
Elad,


The ASP S46A piston and liner set, fits into the OS.46FX with no modification.

It is not the same part, as the ASP set includes a chromium plated, true ABC sleeve; while the *original*, very expensive OS set is ABN/ABL, with less durable nickel coating.
Both pistons are high-silicon aluminium.

The ASP is a clone of the OS, so most of the parts are interchangeable between the two engines.
I wrote about it in [link=http://www.efly.co.il/forums/showthread.php?40890-%F9%F8%E5%E5%EC-%E5%E1%E5%EB%F0%E4-%EC%EE%F0%E5%F2-OS-46-FX]the eFly forum[/link].

It has also been discussed in this forum.


EDIT: Spelling.

fiery 09-01-2011 10:30 PM

RE: asp piston on OS 46FX ???!!!!!
 
Eldad

I did this some years ago when my FX lost it's piston /liner fit after about five runs. I was disgusted.

I ordered an ASP .46 Piston and liner. Real chrome plating on the liner, and fine quality finish. Installed with no issues whatsoever.

Engine ran like a champ and has kept its fits. I never looked back. I also have never bought another OS engine.

NM2K 09-01-2011 11:25 PM

RE: asp piston on OS 46FX ???!!!!!
 


ORIGINAL: fiery

Eldad

I did this some years ago when my FX lost it's piston /liner fit after about five runs. I was disgusted.

I ordered an ASP .46 Piston and liner. Real chrome plating on the liner, and fine quality finish. Installed with no issues whatsoever.

Engine ran like a champ and has kept its fits. I never looked back. I also have never bought another OS engine.


It takes years and lots of hard work to build a reputation and only one FX series to completely trash a company. What a shame.


Ed Cregger

NM2K 09-01-2011 11:26 PM

RE: asp piston on OS 46FX ???!!!!!
 
Sorry. A misfire.


Ed Cregger

w8ye 09-02-2011 01:58 AM

RE: asp piston on OS 46FX ???!!!!!
 
For the record, this ASP P &amp; L will also fit the AX 46 but the indexing pin at the top of the crankcase is in the wrong place on the 46AX. You have to file a notch in the correct place above the exhaust on the ASP liner to make it fit the AX series.

blw 09-02-2011 07:31 AM

RE: asp piston on OS 46FX ???!!!!!
 
A new piston/liner set puts those engines right at the dividing line between toss in the trash or repair it.

tony0707 09-02-2011 11:25 AM

RE: asp piston on OS 46FX ???!!!!!
 
hi
usually the cost of a piston and liner replacement will signal the time to purchase a new complete engine
have to consider the wear on the other engine partsthat has taken place
could be throwing good money away-you could be applying to the new one long run
best regards tony

DarZeelon 09-02-2011 01:20 PM

RE: asp piston on OS 46FX ???!!!!!
 


ORIGINAL: tony0707

Hi,

Uusually, the cost of a piston and liner replacement will signal the time to purchase a new complete engine
have to consider the wear on the other engine partsthat has taken place
could be throwing good money away-you could be applying to the new one long run
best regards Tony
Tony,


This is very much a blanket statement...

Different parts of one engine wear-out at different rates and some can be cheaply replaced several times, before the engine atains paper-weight status.
Pricing is another matter...



OS don't want you to repair your engine and prefer that you buy a new one from them... So they state an outrageous price on their P+L set...
But if you can get an ASP set for under $16 from China, you get a new, even longer lease on the life of your $130 OS engine.

Sure beats buying a new engine, doesn't it?

blw 09-02-2011 07:10 PM

RE: asp piston on OS 46FX ???!!!!!
 
Tony, some wear is good. Most of the time, a new p/l will extend the life of an engine by many years. Same thing with changing bearings.


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