Between 1979 and 1983, diesel locomotives were phased out. With insufficient operating funds and a desire to avoid maintaining deteriorating lines, SEPTA cut various services throughout the 1980s. R3 West Chester service was truncated to Elwyn on September 19, 1986, due to unsatisfactory track beyond. R6 Ivy Ridge service was truncated to Cynwyd on May 17, 1986, due to concerns about the Manayunk Bridge over the Schuylkill River. Service to Cynwyd ended altogether in 1988, but fierce political pressure brought resumed service. R8 diesel service between Fox Chase and Newtown ended on January 14, 1983, after SEPTA decided not to repair failing diesel train equipment. The service was initially terminated on July 1, 1981 (along with diesel services to Allentown and Pottsville) and reinstated on October 5, 1981, using operators from the city transit division. This experimental Fox Chase Rapid Transit Line caused a rift in unions within the organization, adding to the March 1983 strike that lasted 108 days.