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Anyone have issues with their 44 ton switchers pulling power? I picked mine up today. It is about near impossible to pull a train on an 031 curve. Even just the engine can hardly move itself around a curve. I put two super light Lionel all plastic cars and it still bogs down with those. Higher throttle is a slight help but as you can see with two axles and traction tires, performance is quite bad.

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Folks, 

There is no binding or surging. It is 100% wheel slip. What you don't see is the drive axles happily running. I took a flashlight and got real close to the wheels to confirm. In curves, the wheels turn but the train doesn't move. It is glass smooth on straight track - very impressive. 

I took it back to the LHS later this afternoon. We put it on the store layout with 4 MTH Premier passenger cars, going up and down hill. It was struggling there. On the store test track it of course ran fine. The store test track is a straight track made of MTH Realtrax. No issues. Out comes the third test track, a small 0-31 oval of MTH Realtrax. To give it something to pull, 3 MTH Railking Rugged Rails cars (like in the RTR train set) that are demo pieces went with it. It was evidently struggling there. It was very clear to everyone it could hardly move 3 027 passenger cars. 

I was given another, new LIRR 44 ton switcher to take home and try as it was clear there were issues with the original one. I have not tried the "new" one but will after dinner. 

I totally get I'm not going to be pulling a monster ("Bonner size") train with this thing. I'd just like it to move itself and maybe 3 cars max!!!

Don’t know why anyone would buy these in the first place.

What do you do with them?

Can’t run them in a lash up, not compatible with anything else so why spend the money?

An Alco S-2 for switching would have been a better choice. They are not supposed to be road diesels pulling a bunch of cars. I don’t get it I guess? 

SIRT posted:

Don’t know why anyone would buy these in the first place.

What do you do with them?

Can’t run them in a lash up, not compatible with anything else so why spend the money?

An Alco S-2 for switching would have been a better choice. They are not supposed to be road diesels pulling a bunch of cars. I don’t get it I guess? 

Are you serious?

I got the "new" engine on the tracks this evening. There is significant improvement compared with the first one. It does not like certain track joints on my layout. Some shimming, untightening track screws, etc helped. 

It will pull the train in the original video with only some slipping in a few spots at certain spots (same spot each loop). The train it is pulling is made up of Lionel, MTH Railking, and Williams freight cars, all plastic with diecast trucks/couplers/wheels. It did briefly pull a 9 car train, with some difficulty. I personally wouldn't do that regularly. 

On my 027 "Figure 8" loop, it found the most trouble spots but I was able to do the same and it runs well over there for the most part. A little more work will be needed. 

I'm still a little disappointed in it's pulling power. I was hoping for more but then again, the real one was no stump puller! There is/was a wicked cool video on Youtube of the PRR 44 ton on the Strasburg Railroad (now on the Walkersville Southern and the loco that provided the sound recording for the MTH engine) struggling to pulling the Strasburg passenger train up hill. Stories I've heard from Strasburg indicate that it had serious trouble pulling more than a few cars, hence the reason for the purchase of a larger EMD switcher some years ago. 

Overall, it is OK. Still disappointed for pulling power but I love the look and the sounds. I think it's a keeper.....

Dtrainmaster posted:

Dave Minarik, you have been working on them; is it possible that one of these could be reducing traction by lifting the drive axle slightly:

> the pickup roller assembly

> the non-powered axles

> the truck itself is canted

Dave

Dave,

The non powered axle could be a bit lower in my opinion.  

Mine pulls great!  There is a video in my thread showing it pulling 12/14 hoppers.  What more do you want?

I have also documented some issues and fixes in my thread. 

I love this engine!

Dave

 

SJC posted:

I got the "new" engine on the tracks this evening. There is significant improvement compared with the first one. It does not like certain track joints on my layout. Some shimming, untightening track screws, etc helped. 

It will pull the train in the original video with only some slipping in a few spots at certain spots (same spot each loop). The train it is pulling is made up of Lionel, MTH Railking, and Williams freight cars, all plastic with diecast trucks/couplers/wheels. It did briefly pull a 9 car train, with some difficulty. I personally wouldn't do that regularly. 

On my 027 "Figure 8" loop, it found the most trouble spots but I was able to do the same and it runs well over there for the most part. A little more work will be needed. 

I'm still a little disappointed in it's pulling power. I was hoping for more but then again, the real one was no stump puller! There is/was a wicked cool video on Youtube of the PRR 44 ton on the Strasburg Railroad (now on the Walkersville Southern and the loco that provided the sound recording for the MTH engine) struggling to pulling the Strasburg passenger train up hill. Stories I've heard from Strasburg indicate that it had serious trouble pulling more than a few cars, hence the reason for the purchase of a larger EMD switcher some years ago. 

Overall, it is OK. Still disappointed for pulling power but I love the look and the sounds. I think it's a keeper.....

In case some of you missed my "update" post. Here it is again.

There is such a wide discrepancy in the drag of different cars, that merely stating a number of cars is meaningless.  I have some MTH rolling stock that rolls on an imperceptible grade, and post war Lionel that won't roll on a pronounced grade.

I haven't yet tried my 44-tonner to see its pulling power.  It's been pulling 2 new MTH RK freight cars up and down the grades as a break-in.

From what it looked like on my end (and I may be way off)...

I don't doubt it will pull a dozen + cars on wider curves and/or straight track. What does look to be an issue, at least on my "good new engine" is little vertical movement in the trucks. When a dip, even a minor dip such as in a track joint, etc, The drive wheels are lifted slightly off the track as the pilot has used all vertical play and is making contact with the frame.

I looks like MTH was trying to make the gap as small as possible to compete, somewhat with the Williams fixed pilot version. While I think it looks terrific, I suspect this may cause a bit of the "slipping issue". The Williams doesn't appear to have any issue handling long trains and also has greater vertical play in the trucks.

Tonight I'll have to weight down my engine on my 042 outer loop and see how it pulls. It is on the 027 loop now with 2 cars and a Postwar caboose and happily running in circles! I personally prefer shorter trains and the real one was no stump puller so I'm OK overall with a 5-6 car maximum. It did run on the 031 upper loop, with one spot causing slipping (as it does for my other big engines, guess I'll actually have to fix it now ) and was pulling a 6 car train of Postwar freight which have a LOT of drag and did just fine.

I'm still overall happy with my new engine. It sounds great and runs (with a shorter train) great. I love how it looks going down the track.

 

This isn't the first time I've seen huge difference in pulling power between two engines. I purchased, along with a friend, an MTH Railking ABA diesel set. We bought the exact same set at the exact same time. His has no trouble pulling two dummy units and a 20+ car train. Mine could hardly pull a 5 car train. This was 5 years ago. Other than the lack of pulling, my engine ran great. Looks great with a short coal train.

 

Dave - Out of curiosity, was that on straight track or curve? If curved, what size curves? Will it handle that train at slower speeds without difficulty?

Last edited by SJC
SJC posted:

 

Dave - Out of curiosity, was that on straight track or curve? If curved, what size curves? Will it handle that train at slower speeds without difficulty?

It is a large curve but I have a series of 4 72" switches in a double S pattern that I test everything.  It pulls fine through them.  I have even tested it without traction tires and it pulls fine.  

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