Hi Menright
With the Marklin coaches you may need to replace the wheels , as they are not isolated like the normal 2 rail brands
Depending on the couplings you use , and the age of the coaches , they are usually easy to replace. Since the mid to late 80's most Euro brands used NEM pockets and close coupling mechanisms .
if they are not close coupling you can alternate a close coupling coach with a non close coupling coach , it wont be as good but it would be better that non close coupling coaches together.
Close coupling kits are available , not sure how much they are though or how easy to fit.
There are always Coaches on Ebay with close coupling mechanisms at reasonable prices
Hope this helps
Regards Zmil
With the Marklin coaches you may need to replace the wheels , as they are not isolated like the normal 2 rail brands
Depending on the couplings you use , and the age of the coaches , they are usually easy to replace. Since the mid to late 80's most Euro brands used NEM pockets and close coupling mechanisms .
if they are not close coupling you can alternate a close coupling coach with a non close coupling coach , it wont be as good but it would be better that non close coupling coaches together.
Close coupling kits are available , not sure how much they are though or how easy to fit.
There are always Coaches on Ebay with close coupling mechanisms at reasonable prices
Hope this helps
Regards Zmil