Posted by brudal5051 on February 04, 2020 at 13:39:53 from (69.178.202.41):
I have a Farmall 460 gas (1963 model) that the old tachometer quit last summer. The first one I bought to replace it would only show 1200 rpm when tractor was running wide open, should show 1800 rpm. The second on I purchased worked exactly the same. Drive gear at distributor is fine, cable is fine, checked cable with my digital tachometer and it reads around 600 rpm when tractor is running wide open. I can get the new tachometer to show 1800 rpm with my cordless drill running at around 875 rpm. Any thoughts or suggestions as to what is wrong. Thanks.
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Today's Featured Article - 12-Volt Conversions for 4-Cylinder Ford 2000 & 4000 Tractors - by Tommy Duvall. After two summers of having to park my old 1964 model 4000 gas 4 cyl. on a hill just in case the 6 volt system, for whatever reason, would not crank her, I decided to try the 12 volt conversion. After some research of convert or not, I decided to go ahead, the main reason being that this tractor was a working tractor, not a show tractor (yet). I did keep everything I replaced for the day I do want to restore her to showroom condition.
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