RE: Club MAGNUM !  
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RE: Club MAGNUM ! - 10/9/2007 4:17:48 AM   
bobrev06x


 

Posts: 254
Joined: 9/28/2006
From: Canaan, NH, USA
Status: offline 		thanks w8ye...i just checked and everything is good there. i'll have to throw it back on the mounts and give it another go.

< Message edited by bobrev06x -- 10/9/2007 4:26:51 AM >

(in reply to mr.scale)
       Post #: 876

RE: Club MAGNUM ! - 10/9/2007 11:00:28 PM   
bobrev06x


 

Posts: 254
Joined: 9/28/2006
From: Canaan, NH, USA
Status: offline 		well isnt that interesting???......today i had the mag 70 running and it was about the same as before but i noticed that when i applied a little pressure on the high speed needle, it ran great! so i'm thinking o-ring problems at that location. does anyone know if the high speed needle assembly in the 91 mag is the same as the one on the 70? if so, i can swap them out and see if this makes the engine more mangable. that would be an easy test. anyone? thanks

(in reply to bobrev06x)
       Post #: 877

RE: Club MAGNUM ! - 10/9/2007 11:08:10 PM   
w8ye



Posts: 17462
Joined: 12/11/2001
From: Taylortown, OH, USA
Status: online 		I know the NV bodies are interchangeable between like Magnum and OS.

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Attended the CutFinger Institute of DirtNap University for years but never did graduate....

Club Saito Member #7
Original AMA #31261

(in reply to bobrev06x)
       Post #: 878

RE: Club MAGNUM ! - 10/10/2007 5:04:27 PM   
salmon999


 

Posts: 1
Joined: 1/7/2004
From: Washington Island, WI, USA
Status: offline 		I am currently flying 3 Magnum XL 46s...... One in a World models Mach II, One in a Extra 300s, and One in an Ultimate Bipe, and have had NO problems...... The Mach II has over 500 flights on it and the Engine still runs fine......
A friend of mine gave me a Magnum XL 46 that he said he could not get to run right... After I ran the engine I found that you have to adjust the slow and high speed needle valves together in order to get this particular engine to run right..... Now it is in my Ultimate Bipe with 20 or 30 flights..... I think there is allways a possibility of getting a bad engine but I think most people expect an engine to run perfecly out of the box with no adjustments............ I am no expert on engines but if I can get my 3 Magnums to run without any problems than I would have to say that the Magnum XL 46 is a good buy for the money.................



Dick

(in reply to Rupurt)
       Post #: 879

RE: Club MAGNUM ! - 10/10/2007 5:17:49 PM   
burr


 

Posts: 50
Joined: 9/14/2007
From: Williams Lake B.C., BC, CANADA
Status: offline 		I have been looking at the magnum xl 91 rfs for my new 4*60 plane. I would like to know if this would be a good engine for me. Thanks Gene

(in reply to SigMan)
       Post #: 880

RE: Club MAGNUM ! - 10/10/2007 7:16:55 PM   
w8ye



Posts: 17462
Joined: 12/11/2001
From: Taylortown, OH, USA
Status: online 		You would be very happy with a Magnum XL91 RFS engine in your Four Star 60

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Attended the CutFinger Institute of DirtNap University for years but never did graduate....

Club Saito Member #7
Original AMA #31261

(in reply to burr)
       Post #: 881

RE: Club MAGNUM ! - 10/10/2007 7:39:21 PM   
bobrev06x


 

Posts: 254
Joined: 9/28/2006
From: Canaan, NH, USA
Status: offline 		i have one of these 91 magnum fs on a 50 scale pattern plane and it performs very nicely. plenty of power. i think it would handle the 4 star as well. i've had no problems with my 91. the break in went smoothly and the thing just runs great! my 70 on the other hand, right from the get go, seemed to be a little sick to me. i'll mess with it a bit more and may end up sending it back. i also have a mag 52 fs in my magic which runs very strong. it's just that darn 70 thats giving me a headache.

(in reply to burr)
       Post #: 882

RE: Club MAGNUM ! - 10/10/2007 8:05:53 PM   
burr


 

Posts: 50
Joined: 9/14/2007
From: Williams Lake B.C., BC, CANADA
Status: offline 		Thanks for the replies. I just do not want to make a mistake. Thanks again Gene

(in reply to bobrev06x)
       Post #: 883

RE: Club MAGNUM ! - 10/11/2007 1:35:25 AM   
mr.scale



Posts: 483
Joined: 6/22/2004
From: Harlingen, TX, USA
Status: offline 		is 15/8 on the H needle and 11/16 on the L is normal for a 52xls,cause I could not get the engine run right per instructions (21/2 on the H ???)
15% nitro coolpower 11x5 APC
Fernando
thanks

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GRAVITY WORKS IN MYSTERIOUS WAYS, SOME PEOPLE LIKE IT, SOME PEOPLE DONT.

(in reply to burr)
       Post #: 884

RE: Club MAGNUM ! - 10/11/2007 9:21:12 PM   
bobrev06x


 

Posts: 254
Joined: 9/28/2006
From: Canaan, NH, USA
Status: offline 		that was totally dumb........."duh!"

< Message edited by bobrev06x -- 10/12/2007 12:29:45 AM >

(in reply to burr)
       Post #: 885

RE: Club MAGNUM ! - 10/11/2007 9:35:55 PM   
Ed Cregger



Posts: 7735
Joined: 1/31/2002
From: Ringgold, GA, USA
Status: offline 		The really good thing about the Magnum .91 four-stroke engine, or any Magnum engine for that matter, is the excellent warranty service they present, should you need it.

I am very satisfied with my Magnum engines, having owned, operated and flown them for nearly a decade now, IIRC.

They take a little while longer to break-in, on the average, but it is nothing really protracted or prolonged. Just be prepared to run them on the bench, or in your model elevated up on a card or picnic table for four or five tanks of fuel, or less. Also use fuel with at least some castor oil in it, even if you have to add four ounces yourself. After the engine settles in a bit, you will have an engine that runs and handles very similarly to the original OS version from which it was cloned.


Ed Cregger


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Artisan

"Flying models since the Fifties - I'll get the hang of this yet!!!"

(in reply to burr)
       Post #: 886

RE: Club MAGNUM ! - 10/13/2007 4:40:06 AM   
captinjohn


 

Posts: 5831
Joined: 1/25/2002
From: Hesperia, MI, USA
Status: offline 		I would like to find a dealer with valves for a .90 or 1.20 engine. I need 8 valves to complete a model 4 cylinder Holt 75 Cat engine. Thanks Capt,n

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(in reply to Ed Cregger)
       Post #: 887

RE: Club MAGNUM ! - 10/21/2007 6:48:50 PM   
mr.scale



Posts: 483
Joined: 6/22/2004
From: Harlingen, TX, USA
Status: offline 		hi:
My 52XLS runs erratic with a 11x5 MA(13300rpms)but runs fine with a 12x6apc(10300rpms),is this ok?
what is the best prop for this plane?

I'm using powermaster 10%
thanks

_____________________________

GRAVITY WORKS IN MYSTERIOUS WAYS, SOME PEOPLE LIKE IT, SOME PEOPLE DONT.

(in reply to captinjohn)
       Post #: 888

RE: Club MAGNUM ! - 10/23/2007 8:15:00 PM   
bobrev06x


 

Posts: 254
Joined: 9/28/2006
From: Canaan, NH, USA
Status: offline 		mrscale......is your engine mounted on a plane yet and if it is, what's the plane and the size is it???

(in reply to mr.scale)
       Post #: 889

RE: Club MAGNUM ! - 10/24/2007 2:06:14 AM   
nitrobeast


 

Posts: 351
Joined: 10/31/2005
From: , NJ, USA
Status: offline 		Hey guys

I am thinking about replacing the piston and sleeve in my magnum 70 and wonder if i should replace the ring also?

Thanks

(in reply to bobrev06x)
       Post #: 890

RE: Club MAGNUM ! - 10/24/2007 3:46:49 AM   
AllTheGoodNamesAreTaken



Posts: 596
Joined: 8/31/2002
From: Oak Ridge, NC, USA
Status: offline 		FWIW
It's always a good idea when rebuilding a ringed engine to replace the ring and sleeve as a set. Pistons are replaced as needed.

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Jeff Walker

(in reply to nitrobeast)