I have a 4 pc set of Bachmann Metroliners with the power car being item #1300 that I have had since the 80's. I am looking for any instruction sheets or parts breakdown sheets of this set. I looked on the Bachmann website and also HOseeker but could not find any information on these cars. I am looking for info in regards to servicing the power unit and I am looking for info to remove the coupler gear system to the trucks so that I can use body mount Kadee couplers and to replace the original whelsets with Kadee wheels on the dummies.