When I play with the clutch to rock the engine a little bit, I can hear a slight rattle. Im assuming its one of the bushings a little worn down in the mounts. Am I wrong? If not, could I just fill them the “DSM” way with the poly urethane?
(FYI: I used to have a 1990 Mitsu GVR-4… RARE)
You should first try to identify exactly where the noise is coming from. If it is the mounts, my suggestion is always to replace with OEM or a quality set of aftermarket mounts. If that isn’t in the budget a lot of guys here have used 3M Window Weld. A search will turn up plenty on the subject.