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So, how do you remove the cylinder when Empty So, how do you remove the cylinder when

Post  rsv1cox Fri Dec 21, 2018 7:07 am

there is no relief cut for the Cox tool on the cylinders top and you can't reach the exhaust ports?

So, how do you remove the cylinder when Merc_f10

So, how do you remove the cylinder when Merc_f11

In the A/F boil pot right now.


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Post  Marleysky Fri Dec 21, 2018 7:14 am

I have a short section of an old thick leather belt. Wrap the belt around the cylinder in a “U” shape, grip it with a medium size channel lock pliers, squeeze gently, but Firmly, and twist the cylinder out of the crankcase. Of course having applied generous ammounts of heat first.  I can post pictures if you want some.
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Post  rsv1cox Fri Dec 21, 2018 8:56 am

Yeah, I have done that before as a last resort, just thought there might be a better way.

There was a discussion about this here a few months back but it was more about a design feature than a disassembly resolution.  It's in the pot right now, hot stuff.  I will have to dig up that old piece of leather and give it a try.  Strap wrenches just do not work.  

Also, I can't find a Cox wrench that will fit the flats on the muffler. Not the five sided muffler, two sides that are secured by the fuel tank.

Bob
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Post  OVERLORD Fri Dec 21, 2018 11:27 am

I had the same problem with the Babe Bee of my Corvette. That engine has a throttle ring. I found it easier and more gentle to work the other way around. I clamped the cylinder with glowplug in a modelling vice with rubber protected jaws (the engine on the left). After heating the crankcase, the crankcase screws off without a problem.

So, how do you remove the cylinder when Imgp0110
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Post  rsv1cox Fri Dec 21, 2018 12:35 pm

Good idea Lieven, I will give it a try.

Bob
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Post  Mike1484 Fri Dec 21, 2018 1:38 pm

I am not a fan of vices so I file flats on the top cylinder fin Like the newer cylinders and use the wrench and heat .

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Post  Cribbs74 Fri Dec 21, 2018 2:10 pm

The Muffler flats are only there for positioning and securing the muffler from rotating. Even if you could turn it, it wouldn’t do any good.

Ron
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Post  EXModelEngines Fri Dec 21, 2018 2:17 pm

As others have suggested, a strap wrench will work well. Another option is one of the Cox heat sinks which can be tightened over the cylinder without damage and then removed.
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Post  coxaddict Fri Dec 21, 2018 2:27 pm

That engine looks to be from the old Mercedes racer, vent tubes on the 5cc tank and the rare muffler with no hex!
Smile I wouldn't do this to this particular engine but I cut flats for a wrench aka the TD style cylinders in almost all my cylinders eliminating the need to use a wrench on the exhaust ports. I came across many slit exhaust cylinders with no provision for a wrench and have done the same mods to them also. Likewise with engines with mufflers from the factory.
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Post  rsv1cox Fri Dec 21, 2018 3:12 pm

Yes, Cox W-196, I'm leaving it alone after an anti freeze boil. I don't want to risk damage to it.

I did get the muffler to spin. You can direct the exhaust up or down. I think I'm going to use the vintage reed, I always have the best luck with them. It needs new gaskets and a glow head.

So, how do you remove the cylinder when Merc_f12

So, how do you remove the cylinder when Cox_me64

So, how do you remove the cylinder when Cox_me63

This engine was totally locked up with a lot of coal tar type burned castor. They just run hotter in that enclosed space.



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Post  Oldenginerod Fri Dec 21, 2018 3:20 pm

rsv1cox wrote:there is no relief cut for the Cox tool on the cylinders top and you can't reach the exhaust ports?

You can bore a hole in a piece of wood just the right size to tightly slip the cylinder in, then cut through one side into the hole to make a gap, install the cylinder, clamp the piece of wood in the vise so as to compress against the cylinder, heat the crankcase and unscrew it. OK Cub had a special tool which used the same principle only it was alloy.
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