Well I finally took the plunge and purchased a Couple of SloMo's for my Roundhouse Jack and Stanley Steam Tram. Have to say the dealing with Terry of Small Steam Performance was a joy and cannot fault his assistance one bit.
My Jack was the first to be looked at, the on line instructions give information about removing and moving the Weight Arm, however newer Jack and Roundhouse Locomotives have Alun Key Fittings. Mine was the older knock in pins so problem as this arm needs to be moved a bit to fit the SloMo.
Whatever I did would not allow SloMo to fit, even an attempt to fit on the Front rather than Rear Driver. So what I did was this:-
1 needed to straighten the Weight Shaft a tadge. Abuse with a hammer and straighten up on the visible side with pliers worked. Hang my head in shame, but needs must!
2 My Chassis appears to be on the thin side so the SloMo Tightening Clips needed to be thinned somewhat on the inside. (Thes are provided by Terry to secure the SloMo in place). This then meant that the Screws fouled the SloMo. A Nut on the two I had bodged worked. However the two that have the Slot were put the other way up. Though they show somewhat, a bit of Black Paint will loose them. I actually think that the wrong way round ones add some additional detail so no worries.
3 The reverse gear does indeed foul the Flywheel as predicted. However as my Jack is on 40Mg Gear I found that the adjustment slider gives enough gear to run OK in reverse. But on the bright side it also acts as a Brake as with the Flywheel overrun can be a foot or 3.
So for an older Jack with Curved Weight Shaft and Pins not for the feint hearted. However if you have a newer Loco or dirrerent one with Straight Weight Shaft as my Stanley has no problems I imagine. Stanley is next to be done.
However what a transformation in running, I feel it was all worthwhile as previous views of SloMo fitted Locomotives show. I have only Steamed Jack up once since fitting last Wednesday but the quality of control and running is second to none. Driving style needs to change somewhat as there is a good overun when stopping due to the chunky flywheel. There is also a Slight Whine present when running at Top Speed, but to me it sounds rather like a Battery Generator in a Coach so soes not distract me. Another benefit is better pulling power on grades due to the fact that there is now no Wheel Slip. The following short not very exciting Vid shows the level of control now available.
JonD
My Jack was the first to be looked at, the on line instructions give information about removing and moving the Weight Arm, however newer Jack and Roundhouse Locomotives have Alun Key Fittings. Mine was the older knock in pins so problem as this arm needs to be moved a bit to fit the SloMo.
Whatever I did would not allow SloMo to fit, even an attempt to fit on the Front rather than Rear Driver. So what I did was this:-
1 needed to straighten the Weight Shaft a tadge. Abuse with a hammer and straighten up on the visible side with pliers worked. Hang my head in shame, but needs must!
2 My Chassis appears to be on the thin side so the SloMo Tightening Clips needed to be thinned somewhat on the inside. (Thes are provided by Terry to secure the SloMo in place). This then meant that the Screws fouled the SloMo. A Nut on the two I had bodged worked. However the two that have the Slot were put the other way up. Though they show somewhat, a bit of Black Paint will loose them. I actually think that the wrong way round ones add some additional detail so no worries.
3 The reverse gear does indeed foul the Flywheel as predicted. However as my Jack is on 40Mg Gear I found that the adjustment slider gives enough gear to run OK in reverse. But on the bright side it also acts as a Brake as with the Flywheel overrun can be a foot or 3.
So for an older Jack with Curved Weight Shaft and Pins not for the feint hearted. However if you have a newer Loco or dirrerent one with Straight Weight Shaft as my Stanley has no problems I imagine. Stanley is next to be done.
However what a transformation in running, I feel it was all worthwhile as previous views of SloMo fitted Locomotives show. I have only Steamed Jack up once since fitting last Wednesday but the quality of control and running is second to none. Driving style needs to change somewhat as there is a good overun when stopping due to the chunky flywheel. There is also a Slight Whine present when running at Top Speed, but to me it sounds rather like a Battery Generator in a Coach so soes not distract me. Another benefit is better pulling power on grades due to the fact that there is now no Wheel Slip. The following short not very exciting Vid shows the level of control now available.
JonD
