Marklin 16051 power loss

steaminon · Marklin 16051 power loss

My Markliin 16051 started losing power and ended up not running at all. Has anybody else experienced this?

calypso

Same thing happened to me Alan.

In my case it was the timing that had "slipped" !

The screws holding the eccentrics on to the shaft tend to work loose.

This is what it should look like.

Notice the two eccentric screws at the extreme ends of the shaft set at 90 degrees to each other. But first turn the flywheels to the position shown in the photos.

Hope this is clear. If not give me a shout.

Cheers.

Earlytimes

Was there a dimple in the shaft that the screws set into when timed ?

Maybe a bit of Locktight on the screws ?

kevininasia

That hasn't happened to me, but thanks for the tip John, in case it ever does. I think I would be damned worried if my 16051 just coasted to a stop for no reason.

MODmanMax

Jeez they are well made.

Nice close up shots.

You can really see the quality in that.

steaminon

[quote="calypso:768778"]Same thing happened to me Alan.

In my case it was the timing that had "slipped" !

The screws holding the eccentrics on to the shaft tend to work loose.

This is what it should look like.

Notice the two eccentric screws at the extreme ends of the shaft set at 90 degrees to each other. But first turn the flywheels to the position shown in the photos.

Hope this is clear. If not give me a shout.

Cheers.

The timing on mine is correct. Nothing is loose, nothing has moved.

calypso

OK.Assuming there's plenty of pressure showing on the gauge.

You could check for obstructions in the steam inlet pipe, the connection between the high and low pressure cylinders, and the
exhaust.

I take it you have checked that both flywheel grub screws are tight. These too have been known to loosen.

You could also loosen the eccentric for the water pump to exclude the pump as the culprit.

steaminon

[quote="calypso:768857"]OK.Assuming there's plenty of pressure showing on the gauge.

You could check for obstructions in the steam inlet pipe, the connection between the high and low pressure cylinders, and the
exhaust.

I have plenty of pressure and nothing on the engine has loosened up. I pulled all of the steam lines and blew air through them with no problem. I removed the pump entirely. Put the steam lines back on and no luck, the engine would not run at all. I put at least 40 psi of air pressure into the boiler and the engine would not run. The mystery has now been solved though. You could check for obstructions in the steam inlet pipe, the connection between the high and low pressure cylinders, and the
exhaust.
You had it pegged.
The steam fittings on these engines use a rubber washer to make the seal..... As time has gone by these rubber seals have pretty much sealed themselves shut. The steam line going from the high pressure exhaust to the low pressure intake had all but sealed itself up, and the other seals were close behind. I made some gaskets out of regular paper gasket material to use in place of the rubber seals and the engine came to life immediately. I don't believe it has ever run this well. Thanks for the help on this one. It had me scratching my head for quite a while.

ozsteamdemon

Arh , the old rotten rubber trick , eh !

But a simple fix , you gotta be happy with that !

kevininasia

Glad it's working again. One of the many nice things about that engine is that it is all nut-and-bolt construction, which makes it a breeze to take apart and fiddle with.

steaminon