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Home✈️Aircraft🚁HelicopterAlignT-REX 700N › DIY Fan hub puller
09-16-2009 07:00 PM  11 years ago
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mlucia

rrKey Veteran

Essex Jct., Vermont

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DIY Fan hub puller
In the frustrating quest to remove the fan/hub from my engine I only found 1 thread while searching so thought I would share what I did.
Mine was on REALLY good. Could hardly budge it and it was almost impossible to pull and turn at the same time.

Thanks to Nelson J's post here: http://runryder.com/t470768p1/?high...stuck+on+engine

Items needed:

(2) 4mm x 35mm bolts
(1) 7/16 x 2" bolt
(1) 7/16 nut
(1) 7/16 washer

The 700 clutch
Channel locks or BIG open face wrench.
Socket and socket wrench of course also.

The process:

A whole 10 seconds

After screwing in the 4mm bolts all the way down, simply hold the nut with pliers and turn the bolt in.

Total cost $3.64 and 10 seconds of time.

Hope this helps someone!

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09-16-2009 08:02 PM  11 years ago
jschenck

rrProfessor

La Vista, NE.

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that's pretty good, I was thinking about making something just like that but using a plate I made rather than the clutch. A broken clutch work work just fine, I here there are plenty out there
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09-16-2009 11:07 PM  11 years ago
cation3

rrApprentice

Smyrna, GA - USA

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Good idea.

My lazy-man method for those without the hardware: Stick two extra* 4mm socket head cap screws in the hub, then lower the screw heads into a vice so that the hub rests squarely on top of the vice. Tighten the vice on the screws. With a crank lock in the engine, rotate the engine while pulling and slowly remove the hub from the crank-shaft. Voila....

* = non flying screws, cause the vice is gonna chew them up a bit.

This works for me, but your idea is a little classier.

-Drew
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09-17-2009 01:14 AM  11 years ago
jsenicka

rrProfessor

Eagle River, WI

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That is the second recent dent in my laptop screen from a forehead bang while uttering "geez why didn't I think of that before I tried it the hard way."

Nice idea!
Jim Senicka
Team Manager, GrandRC Flight Team
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08-08-2013 08:19 PM  7 years ago
meowguy

rrVeteran

Saco, ME

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Great post.

For the Trex 600 you will require 3/8" bolt. The 7/16" will only work on the Trex 700.
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