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Q-500 Racing Discuss AMA 428, AMA 424, and any other variants of Quickie 500 racing

Nelson Q500

Old 01-11-2006, 06:38 PM
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ranger22
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Default Nelson Q500

I bought a Nelson Engine from an eBay auction and I'm unable to find any site to buy parts or even get a manual (if one exists). Does anyone know where I can buy a carberator or anything for Nelson Engines. Google isn't helping.
Thanks.

Ranger22
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Old 01-11-2006, 06:53 PM
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garys
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Default RE: Nelson Q500

Performance Specialties, www.pspec.com
GS
Old 01-12-2006, 10:27 AM
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dapan
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Default RE: Nelson Q500

Everything you want....www.pspec.com
dapan
Old 01-12-2006, 11:42 AM
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luv to race
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Default RE: Nelson Q500

Unless it is an old style motor. I'm not sure that Shadel has any of those carburators left??

RB
Old 01-12-2006, 11:59 AM
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splatt
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Default RE: Nelson Q500

He sells a ring that takes up the height of the new style carb.

Hey ranger, you found the Internet home of Nelson users, throw us the questions, we'll get you going.

Try nmpra.org too

If your looking for a regular carb that will idle and such I beleive a ST .90 carb fits, but if I'm wrong someone will jump in
Old 01-12-2006, 03:48 PM
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rmenke
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Default RE: Nelson Q500

Splatt:

Assuming a ST 90 carb in a Nelson Q-500, how many rpm would the engine end up turning. I know the engilne would be restricted by the st carb, any carb for that matter, but what would she turn?
Old 01-12-2006, 04:56 PM
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Jerry-B
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Default RE: Nelson Q500

Ranger 22
I put a Perry carb on one of my Nelson Q500 motors so I could have a motor that idled so I could safley launch the plane
alone. Per Spec does not have an adapter ring to make the new carbs fit the older engines. Try here

http://www.perrypumps.com/prod01.htm

Do not get the pump style carb, when you order the carb, be sure and tell them that you need the adapter sleeve that they sell for $12.00 to go with the carb. To make the carb fit, you will have to grind part of the carb away to get it to slide down into the engine. Then cut a groove for the spray bar. Use hi temp silicone sealer around the carb when you install it.
My Nelson runs great on the Perry carb, only down about 200 rpm and it will idle all day at a low enough speed that it won't
move sitting on the black top runway at T.I.M.P.A. in Tucson.
Old 01-12-2006, 05:32 PM
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splatt
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Default RE: Nelson Q500

Good info Jerry, when I won my motor last summer I had Dave sell me a carb too, I told him it was for an old motor and it came with the ring.

Maybe there all gone, oh well.

Don't choke on the nice weather down there ...
Old 01-12-2006, 05:44 PM
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Jerry-B
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Default RE: Nelson Q500

Splatt
Maybe you have more "pull" with Mr. Shadel, I ordered 3 carbs from him in Dec. and asked for spacers and at that time he said none we available. This morning I flew my Q500
at T.I.M.P.A. and then flew my electric this afternoon in the RV park, I realy wish all the NCPL members could be here 70 degrees and 7 mph wind
Old 01-12-2006, 06:14 PM
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SmokinJoe
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Default RE: Nelson Q500

Jerry,

Do you know of anyone who has ran a Perry carb on a Nelson Q40 engine?

I am about to run my first Q40 engine and got a Perry carb for it, only to discover that the spigot on the Perry carb was about 1/8" short. That carb is on its way back to Conley Engines to get a new spigot fitted.

Can anyone suggest a locking bar from another engine that can be used with a Perry carb in a Nelson Q40 engine?

Old 01-12-2006, 10:03 PM
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Jerry-B
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Default RE: Nelson Q500

SmokinJoe
If you have a newer Nelson Q40 motor with a long neck in the crancase for the carb, the model Perry carb I put on my Nelson will not fit.
My Perry carb fits the old style short neck crankcase. The Nelson spray bar will hold the Perry carb in place, leave the Nelson needle valve out.
Old 01-12-2006, 10:18 PM
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SmokinJoe
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Default RE: Nelson Q500

Jerry,

Do you have to plug the Nelson spray bar to prevent leakage into the crankcase?

Can you comment on how the Q40 engine will either idle or throttle down on one of the latest Perry carbs?

Thanks again

Old 01-13-2006, 10:33 AM
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Jerry-B
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Default RE: Nelson Q500

SmokinJoe,
No, you do not need to plug the spray bar, After adjusting the carb it should idle and run good thruout the full RPM range.
Old 01-13-2006, 11:02 AM
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Randy Etken
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Default RE: Nelson Q500

Jerry, what campground are you in and for how long, I'm looking for a place for March.
Randy
Old 01-13-2006, 12:51 PM
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daven
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Default RE: Nelson Q500

Randy, make it late Feb and get that Dago ready
Old 01-13-2006, 06:44 PM
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ranger22
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Default RE: Nelson Q500

Everyone,

I tried thanking you guys the other day for the help, but it didn't go through.

Thank you everyone. I'm going to try this engine out this weekend (if it doesn't ain) and see if I can put the info to work that you gentlmen have provided.

Thanks again,
Ranger22
Old 01-13-2006, 08:42 PM
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Jerry-B
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Default RE: Nelson Q500

Randy
I am at Desert Trails RV Park southwest of Tucson. I am leaving here Feb 13 to visit friends at the Escapees RV park in congress AZ then to the Q40 race about the 20th of Feb.
Glad to hear you are going south for awhile this winter.

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