So, how do you remove the cylinder when

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.

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.

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

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

rsv1cox Fri Dec 21, 2018 12:35 pm

Good idea Lieven, I will give it a try.

Bob

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 .

Mike1484

**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

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.

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.

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.

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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