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HelicopterEngines Plugs Mufflers Fuel › Crank Lock Tool
01-28-2007 10:11 PM  10 years agoPost 1
RonRock

rrApprentice

Underwood, Iowa USA

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I bought one off a RR member, happy to have it. But I am wondering if I got the right one. I have an OS-50. The tool is for a OS-32 on one end and unknown but larger on the other. I checked and it looks like there is at least two different tools with 32 on one end. The large end is too big for my 50 and of course the small end is loose in the Crankcase. Is the correct one a close fit inside the crankcase? It is white HDPM? (plastic) if that helps.

This Thing Has More Bugs Than a Big City Flop House.

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01-28-2007 10:21 PM  10 years agoPost 2
perfesser zero

rrKey Veteran

Dublin, VA., USA

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Crank tool...

I have the same one and it'll work just fine in the OS 50. I've used it on my 50. Yes it will be loose.

Later...

Scott!

Tiger 50 - OS 50SX-H
Hawk Sport - OS 37SZ-H
Raptor 30 - OS 37SZ-H
JR 10X/R950S

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01-29-2007 05:37 PM  10 years agoPost 3
frebou

rrKey Veteran

Montreal / Canada

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I use the small one on a OS50 and the big one on 90 sized engine. They are loose but it does the job just perfect anyway

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01-29-2007 06:05 PM  10 years agoPost 4
z11355

rrMaster

New England

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originally, there were 2 versions

32/61
32/46

the 46 end fits the 50 loosely as I recall

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01-29-2007 06:25 PM  10 years agoPost 5
Dr.Ben

rrMaster

Richmond, VA, USA

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Though loose, the 32 end is fine in the 50. You just have to hold it in place until the crank turns enough to suck up the freeplay.

I suppose you could wrap the small end with electrical taped to increase its OD, then slice the groove back in for the rod with a knife. Not needed, though.

Ben Minor

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01-30-2007 02:13 PM  10 years agoPost 6
Four Stroker

rrElite Veteran

Atlanta

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People originally used toothbrushes and dowels. I use a piece of delrin barstock scrap. It really doesn't matter as long as its not metal. Don't use the type that screws into the glow plug hole!

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01-30-2007 04:00 PM  10 years agoPost 7
RonRock

rrApprentice

Underwood, Iowa USA

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Thanks guys, I almost started with a "Piston Stop" tool but before ordering I thought about it and then after some reading was convinced that they are just asking for trouble. I had used a toothbrush until now, but that makes my toothpaste tase like Nitro.
Glad I bought the right one.

This Thing Has More Bugs Than a Big City Flop House.

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HelicopterEngines Plugs Mufflers Fuel › Crank Lock Tool
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