Jackshaft fly cranks - any suggestions

[ge_rik]

Hi folks
I'm considering converting / bashing a Playmobil diesel into an 0-4-0 Fowler diesel - similar to this one:

I could probably fashion some fly cranks for the jack shaft out of offcuts - but I reckon this is going to be the most challenging part of the bash. Does anyone know any source for these mechanical bits which I could use / adapt?

Rik

 

[Philbahn]

Re:Jackshaft and fly cranks - any suggestions

Hi folks
I'm considering converting / bashing a Playmobil diesel into an 0-4-0 Fowler diesel - similar to this one:

I could probably fashion some fly cranks for the jack shaft out of offcuts - but I reckon this is going to be the most challenging part of the bash. Does anyone know any source for these mechanical bits which I could use / adapt?

Rik

Try WARENREICH or WARENBERG IN GERMANY. They keep selling the cranks off the OBB diesel might just be what you want

 

[DoctorM]

LGB RhB Krokodil 20 400-E041 jackshaft eccentrics


3.99 Euro each plus P&P from Bad Bodenteich

http://www.modell-land.de/treibstangenaufnahme-elok-krokodil-20400e041-p-4076.html

 

[bobg]

Re:Jackshaft and fly cranks - any suggestions

You could probably fashion some from a pair of spoked loco wheels, with filler for the extra bits. Probably a longish job though, but at least you'd have the crank pins. The offset for the cranks must be identical to the loco axle or it wont go round.

 

[Mik]

Re:Jackshaft and fly cranks - any suggestions

Wilesco or Mamod?

 

[DoctorM]

Re:Jackshaft and fly cranks - any suggestions

You could probably fashion some from a pair of spoked loco wheels, with filler for the extra bits. Probably a longish job though, but at least you'd have the crank pins. The offset for the cranks must be identical to the loco axle or it wont go round.

I thought of that option but it would be an expensive use of a pair of loco wheels.


As the jackshaft and its eccentrics would (presumably) just be a cosmetic add-on, a cheaper option would be to use plastic wagon wheels as a donor, and fit your own crank pins, but as you said, the offset must match that of the drivers.

 

[bobg]

Re:Jackshaft and fly cranks - any suggestions

And the out-of-phase must agree also. Doen't need to be exactly 90deg but they must be the same, or again it wont go rond

 

[ge_rik]

Re:Jackshaft and fly cranks - any suggestions

Thanks chaps

Plenty of useful information here. Yes, you're right of course, will have to check the lengths of the offsets between axle and crank

Rik

 

[David1226]

Re:Jackshaft and fly cranks - any suggestions


Garden Railway Specialists, white metal casting part number DG182, extended cranks
http://www.grsuk.com/index.asp?search/search.php?zoom_query="building+kits"

David

 

[ge_rik]

LGB RhB Krokodil 20 400-E041 jackshaft eccentrics


3.99 Euro each plus P&P from Bad Bodenteich

http://www.modell-land.de/treibstangenaufnahme-elok-krokodil-20400e041-p-4076.html

Does anyone know of a UK source for these - the postage is 18 euros which seems a lot for a couple of small parts.

Rik

 

[ge_rik]

Re:Jackshaft and fly cranks - any suggestions

Garden Railway Specialists, white metal casting part number DG182, extended cranks
http://www.grsuk.com/index.asp?search/search.php?zoom_query="building+kits"

David

Thanks David

I've sent off for a couple fo these to see if the dimensions match those of the drivers on the Playmobil 'Toytrain' chassis.

Rik