Hi Mike,
it seems due to the difference between the K and C track.
The 74132 is for standard tracks, you must heighten it 6 mm. to use with C track.
There is the 70012 catenary installation jig which can help you.

Another thing to watch for is to avoid this problem. Several non-marklin passenger cars I have cannot make it past several spots on my layout. Specificaly, a catenary mast on the inside of a R1 curve.[xx(] You almost have to have this with a curved switch under catenary.[:p] (Especially in tunnels as here)



Notice that the side of the car is against the mast, and the wheels (in forground) have derailed.[xx(] I only have a couple of Roco 1:100 cars that do not have problems and are not Marklin. All my Marklin cars make it past this point with no problems.

Edited by moderator 11 January 2011 16:11:32(UTC)  | Reason: Not specified

You don't have this problem with Sommerfeldt catenary because of the placement guide that comes with the catenary masts, which determines the "drill hole" for the mast. Plus, Sommerfeldt has a variety of masts that are proptotypically correct and allow you to do build arm supports that extend beyond the location that is required by the simpler Marklin catenary.

Peter