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Gaui X7 › 4525 long shaft install
02-20-2013 11:03 PM  5 years agoPost 1
RobertAbles

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FT. Worth, Tx.

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I got a long shaft for the 4525 that gives enough end shaft to reach the counter bearing. One thing that is different with this shaft is that it is 1.5mm longer in the end that fits into the bell. So I had to use a 1mm thick 10mm washer under the top C clip to take up the extra length. You can see the pic of the old shaft beside the new shaft in the package it is just slightly longer. At this time, getting the long shaft is only available from Scorpion direct.

1. Press out the old shaft out of the motor bell after removing the 3 set screws.
2. Press in the new shaft by hand into the bell by hand lining up the flat spot with a set screw hole. Use a press to complete the install of the shaft.
3. Since the helical gear by design pulls down on the motor shaft, I added a washer and 5mm screw to the end of the motor shaft on top of the motor when installed. I believe the newer motors are coming with this bolt.
4. I cut 7-7.5 mm off the end of the new shaft so as to have 44-45mm of shaft to reach just through the counter bearing. I didn't want it to extend to far past the bearing as my bec and throttle leads run under the counter bearing. If you don't run any wires here, you can just install the long shaft without any cutting, it clears fine.
5. Mounted the pinion and bolted it all in. Runs like a champ!

GAUI USA Team Pilot / Cyclone Blades / Scorpion Power Systems / MKS USA / Optipower / YS Engines

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02-21-2013 12:35 AM  5 years agoPost 2
Tyler Benson

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Louisiana usa

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Nice Rob!, I never thought of putting a washer and screw in the top of the shaft.

Team Ready Heli
Team Gaui USA/ Empirerc.com

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02-21-2013 03:29 AM  5 years agoPost 3
RobertAbles

rrApprentice

FT. Worth, Tx.

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The newer motors I have seen come with this now. Helical gears pull down on the shaft. A little insurance is all.

GAUI USA Team Pilot / Cyclone Blades / Scorpion Power Systems / MKS USA / Optipower / YS Engines

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02-21-2013 04:36 AM  5 years agoPost 4
jczankl

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AZ

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Very nice! Thanks for sharing! I might have to do the Washer and screw thing!

GAUI/Empire
Xpert Servos
PowerMaster Fuels
YS Engines
Graupner
Castle Creations
Scorpion Motor
VTX Blades

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02-25-2013 08:55 PM  5 years agoPost 5
macsrgreat

rrApprentice

Flower Mound, TX

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Hey guys, here is a video on removing and installing a new shaft in a Scorpion motor. Sometimes a video says it all.

Watch at YouTube

Hope it helps.

Team Gaui USA~VP Fuels~Spin Blades~YS~Scorpion~Gens Ace~MKS USA~Castle Creations

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02-27-2013 04:16 PM  5 years agoPost 6
macsrgreat

rrApprentice

Flower Mound, TX

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4525 Bolt in Shaft
Hey guys, a nice way is also a Rave spindle washer and bolt.
Strengthens the bolt and looks super cool.

Giddy Up.

Team Gaui USA~VP Fuels~Spin Blades~YS~Scorpion~Gens Ace~MKS USA~Castle Creations

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02-27-2013 04:17 PM  5 years agoPost 7
macsrgreat

rrApprentice

Flower Mound, TX

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Nice job Rob!

Team Gaui USA~VP Fuels~Spin Blades~YS~Scorpion~Gens Ace~MKS USA~Castle Creations

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Gaui X7 › 4525 long shaft install
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