Posted by Ranchingelec on March 24, 2022 at 20:48:41 from (207.195.86.178):
Hello there. We have a 4890 Case with a dozer and this winter we have put at least a 50 hours on it pushing snow. This last while it started stalling out just as if it is running out of fuel. First we installed a new set of fuel filters, We installed a new fuel line, changed primer pump. Funny thing it runs great for about 1/2 an hour, then problem only begins once engine is warmed up. I installed a pressure gauge after the filters. 12-16 psi when running. When it stalls there is still 5-10 psi there but it will not restart. A couple pumps with the primer and then it fires right off. I do notice when I am pumping the primer there is a metallic clunk that comes from the governor end of the injector pump. Then it will fire right up. It is almost like the fuel shutoff is being 1/2 pulled. If caught before it stalls and you push the throttle WOT. It sputters and misses a bit (like you pulled the shut off out 1/2 way)then takes right off to high idle. Because this tractor has done a lot of snow plowing in the past. The governor gets quite a workout. Push/ backup push backup. I am starting to think that this is not a air in fuel issue but rather something in the governor is coming apart. When it is sputtering there is no throttle lever response to come back to idle until it finally does take off to high idle. Then I can always bring it back to idle. In my 15 years of pulling wrenches this is a new problem I have not seen before what are your thoughts? In the spring and summer this is our tillage tractor. to in fall running the 1682 combine for harvest. Ranch
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Today's Featured Article - Upgrading an Oliver Super 55 Electrical System - by Dennis Hawkins. My old Oliver Super 55 has been just sitting and rusting for several years now. I really hate to see a good tractor being treated that way, but not being able to start it without a 30 minute point filing ritual every time contributed to its demise. If it would just start when I turn the key, then I would use it more often. In addition to a bad case of old age, most of the tractor's original electrical system was simply too unreliable to keep. The main focus of this page is to show how I upgr
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