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Magnum XL 40 manual

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Magnum XL 40 manual

Old 05-15-2008, 10:43 AM
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Default Magnum XL 40 manual

I am looking for the manual for the Magnum XL40 engine. I got it with the plane I just bought and wanted to get more familiar with it.

I have been trying to find it online, but with out success.

Thanks for your help.
Old 05-15-2008, 11:07 AM
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Default RE: Magnum XL 40 manual

You might try here; http://www.globalhobby.com/review/reviews.asp, Download the instruction manual for the Magnum XLS 40A Aircraft Engine (237K) in Adobe PDF format. It's near the bottom of the page.
Old 05-15-2008, 02:07 PM
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Default RE: Magnum XL 40 manual

This is for the XLS 40A. It's the closest thing I could find.

Old 06-07-2014, 02:27 PM
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what is the diffeence between the XL and XLS .46? Thnking about bidding on a magnum .46LX engine
thank you
Old 06-17-2014, 11:29 AM
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The XLS is newest version with an updated carb, more dependable than the XL. The carb was hit or miss on the XL it developed air leaks.
Old 06-17-2014, 01:37 PM
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thanks rcjetflyier, I have the XLS. seems to be a good engine so far
Old 07-26-2017, 12:43 PM
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I have a magnum XLS 40 glow engine,
I havnt used it for around 2 years... I took it apart cleaned it, oiled it and once I gathered it together with fresh Nitro fuel its not starting...
can anyone help me please???
Glow plug is charged and the glow is working ive tested it.
ive put fresh fuel... still nothing
it tries to start but just wont kick in.
I tried heating the head to give some heat and still no luck...
I pimed it many times, and still no luck
I emptied the fuel from the engine once I over primed it and tried again and still no luck
it tries to start but it wont.
I tried turning it with a 12v starter but the only result I get is the spinner and prop flying off... so I am starting it by hand and since then ive had no problems of the prop flying off..
ive looked over it many times to see if there is a gap or leak and I have no gaps or leaks. not in the engine nor in the fuel lines
ive tried playing with he needle and had no luck too.
don't get me wrong, it wants to start but it wont. before you know it my glow plug dies of battery. so I have to charge it up again and wait 4 hours to do this all again.
ive spent almost 1.5L of nitro for nothing.
ive realized something... in regards to the cylinder head. if I unscrew it I can rotate the prop easily around the shaf. once I screw on the cylinder head there is a funny sound each time the Piston hit TDC and its quite hard to turn it again theres a funny sound - tick tick sound. I thought maybe that is the problem I don't have any solutions to it....
in regards to the carby ive cleaned it and put it back on properly.... the thing just wont start!!
can any one help me?
King regards
Old 07-27-2017, 05:45 AM
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Hi Jospeh114, I read your post in another thread in the beginners posts, you should start a new thread for your problem. One thing you might want to check is if you missed a head gasket? could the click click you hear be the lining moving up and down? I would take it apart again and see if you can see if you somehow got something mixed up. Your needle valve or spray bar could be plugged. The motor should be tight at the top but if it is kicking off props and spinners it either still has too much residual oil from your cleaning in it or too much fuel. Try closing the needle valve and using an eyedropper add 5 drops of fuel and try it with the electric starter. if it does not start add 5 more. in warm weather this should be enough to get her running for a few seconds at least. do not open the throttle over about an1/16 gap in the throat(or less is better, just enough to stick a pin in the opening)

Old 07-28-2017, 06:05 AM
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It sounds like he means the prop is coming off due to not being tight enough.
I'm guessing you have a plastic backplate spinner on the engine? Get some open mesh plumbers sandcloth or drywall sanding sheets. Cut a circular spacer out of it that fits the back of your prop and install it between the spinner and prop. You'll never have a prop come loose again provided you tighten it properly. I've used this trick on numerous engines over the years, even one with an aluminum backplate where the prop didn't fit into the texture that's meant to hold it in place. On a related note, don't use those little 4 way wrenches for glow plugs to tighten your prop nut. Use a crescent wrench or (better yet) a box end wrench. You do have to be careful with the plastic backplates though, because it's easy to crack them. The aluminum ones are great though, well worth the money.

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