"1/2 A" & "1/8 A" airplanes These are the small ones...more popular now than ever.

AP Wasp .061

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Old 03-21-2013, 07:38 AM
  #1
skaliwag
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Default AP Wasp .061

We know this engine is a Cheap Clone of an early Norvel with some QC issues but what usually "brakes" on them
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Old 03-21-2013, 09:36 AM
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Default RE: AP Wasp .061

The crank to crank-case fit is very sloppy straight from the box, but other than that I haven't really broken anything. It just feels a little worn out...
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Old 03-21-2013, 10:48 AM
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Default RE: AP Wasp .061

I havent broen anything on mine either. The ones I have the crank fit is just fine. For the scale or draggy planes I run a APC 6x4 Gas prop. I know its not for RPM but it pulls very well and I can fly most planes at 1/2-3/4 stick for a long time on 2 ounce tank. Oh and I use the mufler too.

I have ran a few of these on a bunch of the Alpa warbirds and other foamies. I use the muffler and run a small scection of vacuume hose to the outlet and run a light carbon tube from it to divert the exhaust out the rear of the plane. flew the 18 ounce foamie really well.
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Old 03-22-2013, 05:49 AM
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Default RE: AP Wasp .061

Mine came feeling very worn out but ran OK really just felt and ran like an old and worn norvel.
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Old 03-22-2013, 08:31 PM
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Default RE: AP Wasp .061

But you never broke any thing.

What prop and nitro content did you use?
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Old 03-22-2013, 10:22 PM
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Default RE: AP Wasp .061

25-35% in mine 20% oil
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Old 03-22-2013, 10:43 PM
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Default RE: AP Wasp .061

I've got 4 or 5 of these old dogs sitting in a box....waiting for me to learn how to rebush crankcases.
They never broke anything or seized up.
They were just built kind of loose.
They were good power for all day sessions of 1/2A combat.
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Old 03-23-2013, 06:04 AM
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Default RE: AP Wasp .061

I'm running 20% oil, all castor to compensate a little for the sloppy crank, and use 10% nitro (pretty sure it can handle more).

A few mods I've made on mine;
- added an airbleed hole to the carb (when they copied Norvel they seem to have forgotten to add the little airbleed slit that the Norvel engines have)
- a "hot" insert plug from Merlin, and a copper head gasket
- short piece of fuel line on the needle stem
- JB weld on the muffler to mate better against the flat crankcase surface
- JB weld to keep the back-end of the muffler in place
- DIY springstarter (the Norvel ones fit too, as AP copied the hole in the crankcase lug)

A little battered after about 2-3 seasons now, but it still runs fine and has a nice pinch at TDC when cold;
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Old 03-23-2013, 02:17 PM
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Default RE: AP Wasp .061

ok guys a little off topic I did have an 061 terrible qualilty never got it running it was given away for parts salvage, the 09 is a different story twin BB crank have 3 , two are converted to diesel great runners just for kicks just hand held the stock glow one put a little Davis diesel fuel in the venturi put on the glow driver, hit it with the electric starter
and it ran very well off the prime. will put on bench and repeat to see if it keeps running with the glow driver removed ( on the diesel mix) after it warms up compression very good
the 2 conversions never saw glow fuel martin
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Old 03-23-2013, 04:37 PM
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Default RE: AP Wasp .061

Where did you get the head for the 09
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Old 03-23-2013, 05:01 PM
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Default RE: AP Wasp .061

Heads came from A J Coholic in Canada has done a few for me the 09 APs Irvine 25s ASP 12,15s, Jen 56, phone 705-268-2253 his main biz is custom furniture
one of you down under chaps has gotten heads from him Fiery maybe some posts back when on the diesel site martin

Post note does not show in the pix but the muffler has a little exhaust stack on the side and engine is supplied with several thin washers that fit between the muffler and engine thus allowing it to be rotated which gives you choice of direction for the stack outlet, nice feature
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Old 04-14-2013, 07:06 PM
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Default RE: AP Wasp .061

Glow buttons for the AP061 are getting scarce and exp... what have we tried for an alternate?
Does the Merlin Work? If so which heat range?
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Old 04-15-2013, 04:03 AM
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Default RE: AP Wasp .061

Quote:
ORIGINAL: skaliwag

Glow buttons for the AP061 are getting scarce and exp... what have we tried for an alternate?
Does the Merlin Work? If so which heat range?
It requires a new head, but the Galbreath head/NELSON plug combo should work well. Both are available from Larry Driskill at Kitting It Together.
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Old 04-16-2013, 03:38 AM
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Default RE: AP Wasp .061

I have a Merlin plug in mine (it can be seen in the picture above), I can't remember the heat but I think it is the hot one, as it has a red insulator. It works fine with the 10% nitro that I'm using. The most important thing for the idle and midrange is to add an airbleed to the carb.
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