So I have a new set of guides, but the chain I took out seemed every bit as new and tight as the chain I put in, and the guides look equally perfect - not a mark on them. The "old" chain was the same brand name as the new chain I had, and had a master link - so a recent change, and I believe the guides were changed at the same time.



I have reason to believe the car was fairly well maintained up to a point, but it sat for around a year or two years not being used at all, and probably longer than that as a infrequent driver. Seems to me that maintenance was performed but some parts were just worn and not replaced - injectors for example look very old, if not original, and all the electrical connectors are shot (plastic parts mostly broken). So I'm going to replace them all, new rubber parts, injectors and new electrical connectors.