LGB 2080 valve gear problem

[5H17]

Any ideas what`s happened here folks? I bought two of these Harzkettles at an auction a while back and they`ve been loitering in my shed ever since. I`ve just dug them out and found that both of them have a problem with the valve gear. Any suggestions as to how I can rectify this? I can`t see anything obviously broken or moved.

 

[G-force1]

I don't know for certain, but I suspect it isn't a totally true representation of valve gear. The bottom photo is the nearest to what I would expect and all that seems to be wrong is the valve spindle has come adrift from the steam chest. Could it be that it should be fix in there and not move as it would in real gear? The upper one the lower link just needs returning to horizontal and the same thing doing to the valve spindle.

If some one else owns one of these they could say if the valve rod is supposed to move or not.

 

[5H17]

I can get the spindle back in ok, but it just pops out again. As far as i can tell there is a need for it to slide, so I don't think it should be fixed in there.

 

[Phil]

the valve gear has popped out and is the wrong way, happened on a friends ballenberg..

 

[a98087]

That black plastic rod has popped out the cylinders. It's probably snapped off as it should stay in the cylinder all the time.


The valve gear is easy to manipulate back into position, but the plastic rod needs repairing, I had it on one loco where I replaced the black part with piano wire or any other suitable stiff wire


Dan

 

[dunnyrail]

The Black Part is definately Broken and should go in and out as Valve Gear Works. Here is a pic of my newer one, the Black Part is Grey on mine. It is the part just above and to the Right of the Red Screwdriver. Tricky pic to take on my own!



Hope this helps.

EDIT.
Oh ho carp pic and so big, taken on iPad. But you can just see what I am talking about If you move image about.

JonD

 

[5H17]

That black plastic rod has popped out the cylinders. It's probably snapped off as it should stay in the cylinder all the time.


The valve gear is easy to manipulate back into position, but the plastic rod needs repairing, I had it on one loco where I replaced the black part with piano wire or any other suitable stiff wire


Dan

Ahh... Now that makes sense. I hadn't considered that the black spindle was now shorter than it actually should be! The broken ones are on different sides of each loco, so I can at least make one good one out of two for now. (Now watch me break another when I remove one....)

Thanks gents. Much appreciated.

 

[stevedenver]

well, if i might...
I am guessing that unless you delve into German parts sources, and get lucky,
those black plastic rods may be nearly impossible to find.

I had the same happen on a fairly NOS grey zillertal. I could not find a replacement, and i really love this particular version.

while it takes a bit of bravery,
since its already broken....
and necessity is the mother of invention....



If so,

i found a comparable thickness bit of steel rod, and,
drilled (BY HAND ONLY) into the plastic piece from which the rod extends, just enough to give it a solid hold, and a drop of ACC, or, other strong sturdy glue-drill no further than half way in. Make certain you have enough of the piece width wise to actually envelope the replacement steel rod.

fwiw, mine has held up for several years now. It is virtually identical to the original in appearance. A drop of oil and moderate speed also help prevent future issues, i think (hope).

 

[5H17]

while it takes a bit of bravery,
since its already broken....
and necessity is the mother of invention....



If so,

i found a comparable thickness bit of steel rod, and,
drilled (BY HAND ONLY) into the plastic piece from which the rod extends, just enough to give it a solid hold, and a drop of ACC, or, other strong sturdy glue-drill no further than half way in. Make certain you have enough of the piece width wise to actually envelope the replacement steel rod.

fwiw, mine has held up for several years now. It is virtually identical to the original in appearance. A drop of oil and moderate speed also help prevent future issues, i think (hope).

That's more or less what was going through my mind as an attempt at a repair, so it's good to know that it can work. I only run at moderate speeds anyway, so that won't be a problem. I have a Zillertal in bits on the workbench at the moment, so once that's back together I'll have a go at one of the Harzkettles.