Update.
Took the shell off (Thanks for the instructions!!)
Found almost no lub on the worm drive so I aded a small amount of grease. Also put a very small drop of oil on the axles etc.
Ran it for 1/2 hour and all seems to be back to normal.
Also reset the CV's (thanks Robert)
My 2-8-0 is now back in the roster for feight duties
I am relatively new to the forum and I am impressed by the quality of the responses. Thanks to all who replied

Jim

Thanks guys.

I will take the shell off tonight and take a look.

Jim

Robert:

I would appreciate it if you would send the CV's. May not be the final settings but at least a good point to start with.

Also if it is the flywheel that is slipping does anyone know the disassemby procedure to gain me access  without disturbing the drive mechaism and the quartreing of the drive wheels? I had another 2-8-0 years ago that I took apart and never did get the drivers set right. 

Thanks guys.
I do have a force gauge and the 8 or so cars measure about 1 ounce total on level and 1.2 ounces on the steepest grade.
I measured the draw bar pull on a 0-6- 0 that I have and it measured almost 5 ounces at which point the drivers started to slip.
On my 2-8-0 however there is no driver slip just iwhat sound like increased motor speed and increase of the sound syncronization with no increase of driver speed.
Looking at the exploded view that came with the Loco the only place that I can see slipage would be possible is with the drive belt. I was just wondering if anyone else has had the same issue.

Jim

Steve:

A low cost work around is to just replace one of the couplers on a car from the Horn-Hook type to an EZ mate or Kadee type.
The easiest is to select a car that has body mounted couples and just replace one of those.
If body mounted the likley Kadee would be a #5 which are the most common and therfore should be in stock at your hobby shop.
Truck mounted couplers are less common and would likey need to be ordered.
(Sorry, I do not know the EZ mate body mount coupler#'s)
This gives a low cost and quick way he can then still run both his new and old cars together. As time allows you can then convert the remaining old cars as time and $'s permit

Jim

I have a Spectrum 2-8-0 w/DCC and Sound. I love it with the exception of 1 issue that has develeoped. The problem that it appears to have is that the drive belt is slipping. It occurs after running for a minute or so even with a light consist load of 8 cars.
I suspect it is belt slippage as the syncronizing of the sound does not match the loco speed which is empahsised when going up grade (loco slows down but sound sync stays the same and also at "full throttle" there is excess motor noise with lower top speed than normal.
It is fairly new and has no more that 6 hours total running time.
The loco is still under warranty so I plan to return for repair but I was wondering if anyone else has experienced this and if this maybe a weakness in the design.

Jim