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Sludge


 
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Gsmeyer
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Joined: 14 Sep 2020
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PostPosted: Mon Jun 14, 2021 2:32 pm    Post subject: Sludge Reply to specific post Reply with quote

My A is full of sludge in the crankcase. What would be the best way to flush it out
 
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matthies
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Joined: 07 Sep 2014
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PostPosted: Mon Jun 14, 2021 5:24 pm    Post subject: Re: Sludge Reply to specific post Reply with quote

Some old gas and a brush. Depending on the amount a couple times will be good. Just put the plug in with a quart or so scrub/slosh around then drain. Get in the back side of the pump. This is done with the top cover off.
 
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Glen D Anderson
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Joined: 21 Aug 2008
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PostPosted: Thu Jun 17, 2021 5:58 am    Post subject: Re: Sludge Reply to specific post Reply with quote

As matthies mentioned it's definitely a good place to use up any stale gas you have laying around or you could also try cleaning solvent available at most auto parts stores.

It will require manual scrubbing though, either with a brush or a rag or something to loosen the deposits. Pouring something in and simply draining it won't cut it....
 
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SVcummins
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Joined: 06 Feb 2017
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PostPosted: Thu Jun 17, 2021 10:55 am    Post subject: Re: Sludge Reply to specific post Reply with quote

I Have a John Deere service bulletin for removing sludge Ill have to look it up and see if I can post it
 
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thdrduck
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Joined: 18 Jun 2011
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PostPosted: Fri Jun 18, 2021 8:30 am    Post subject: Re: Sludge Reply to specific post Reply with quote

When I got my 39 B I pulled the plugs, drained the oil like stuff from the crankcase, dumped a gallon of diesel fuel in the crankcase, put it in gear and towed it around for a few minutes. Clean as new.

Note: the longer the tow chain the better and the person riding the towed tractor should wear old cloths. Some pretty nasty stuff can come out of those spark plug holes. I will never forget what my buddy looked like when he got off the seat. I almost pee'd myself it was so funny.
 
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NoDakInMN
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Joined: 02 Aug 2010
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PostPosted: Fri Jun 18, 2021 6:48 pm    Post subject: Re: Sludge Reply to specific post Reply with quote

I will sometimes use an old garden pump up weed sprayer filled with solvent to rinse things down once the worst of the sludge is gone.
 
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