Re: Retune, rebuild, or replace Mercarb?
Finding a replacement belt when you have something to go on is easy. First check to see how your belt tensioner works. If it is a manual (IE not spring loaded automatic type) then check to see about how it is set. If it is near the middle of the adjustment range then you can simply measure the width of the pulley, take the belt that you have with you to the parts store and get one of the same length in the new width (the outer part of the belt should be about the same width as the outer edge of the pulley, but it will put you lower in the adjustment range). It might sit in the pulley a little higher but it doesn't matter because you still have some adjustment range. If the adjuster is near it's outer limit get a slightly shorter belt. If it is near it's inner limit get a slighty longer belt. Atleast you have a known length to work with, it is harder when you have nothing to go on. It is possible, but it is harder. What you do then is set the tensioner to it's outer limit and measure around the pulley's with a string in the groove and measure the width. Because the belt doesn't ride in the very bottom of the pully it should put you somewhere near middle range when you put the belt on. Hope this helps.
Finding a replacement belt when you have something to go on is easy. First check to see how your belt tensioner works. If it is a manual (IE not spring loaded automatic type) then check to see about how it is set. If it is near the middle of the adjustment range then you can simply measure the width of the pulley, take the belt that you have with you to the parts store and get one of the same length in the new width (the outer part of the belt should be about the same width as the outer edge of the pulley, but it will put you lower in the adjustment range). It might sit in the pulley a little higher but it doesn't matter because you still have some adjustment range. If the adjuster is near it's outer limit get a slightly shorter belt. If it is near it's inner limit get a slighty longer belt. Atleast you have a known length to work with, it is harder when you have nothing to go on. It is possible, but it is harder. What you do then is set the tensioner to it's outer limit and measure around the pulley's with a string in the groove and measure the width. Because the belt doesn't ride in the very bottom of the pully it should put you somewhere near middle range when you put the belt on. Hope this helps.
