I just picked up a used, 2013 Rambler, 24-speed. Notice a cautionary note in the manual that the chain must be routed BENEATH the tie-rod, but that note accompanies a diagram of the 8-speed setup. There is no likewise note for other models, so I'm not sure if the BENEATH instruction applies exclusively to the 8-speed or all models. Right now, I've got the chain on the Rambler routed beneath the tie-rod, but I've seen photos that appear to run the chain above the tie-rod. Which is correct?
Also, how much clearance should I expect between the chain and the tie-rod? My set-up right now (BENEATH) allows almost next to no clearance. All I can reason is that I've left the chain too short and that the result is insufficient sag. I've also tried the chain ABOVE the tie-rod, but then chain rubs on tie-rod as if chain sag is excessive. No good. Scratching my head.
Also, 'L' bracket purpose and position? Is its purpose to keep the chain from leaping out of the idler? Which is the optimal position? 12 o'clock? 2 o'clock? 11 o'clock?
Any input on these questions much appreciated!