Re: 641d workmaster

Posted by Hal/WA on October 16, 2002 at 16:22:52 from (208.8.194.28):

In Reply to: 641d workmaster posted by phil on October 16, 2002 at 14:18:14:

I also have a 641D. They are not especially rare, but are rarer than the gas engine model. Some people have said that the diesel is inferior to the gas engine, but mine has lots of hours on it and still runs pretty good. I also have a gas 851 and it takes LOTS more fuel than the diesel to get a job done. The 851 has more power, but it has a bigger engine and has had a lot of engine work done to it, while the diesel has not.

For some reason, I have not found a rebuild kit for the 144 cubic inch engine your 641D has, only kits for 172 Diesels. I have read that the best thing to do when rebuilding a 144 is to get a 172 block and bolt the other parts from the 144 on it, due to the expense of rebuilding the 144. That tells me that the 144 is rarer than a 172, but does it really mean anything? Either diesel will cost a lot more to rebuild the fuel system than a gas engine, since the injectors and diesel pump are really not something that someone who doesn't really know what they are doing should mess with. Almost anyone can tinker with a carbuerator and get it to run fairly decent.

As far as the air cleaner goes, you have the oil bath air cleaner that bolts to the bottom of the intake manifold. This should have a round pipe sticking out the right side as you look at it. That pipe attaches to a formed upright pipe with a rubber hose that looks like radiator hose. The upright pipe bolts to the nonmoving part of the hood and also may have another bracket to the starter area. The length of the upright pipe seems to vary. Mine is quite tall, but I have seen photos where the upright pipe is only a little above the hood. On top of the upright pipe, there is an aluminum and plastic assembly that probably is a precleaner. It also would function as a rain cap. This assembly looks quite fragile. They also may be hard to come by.

There are photos somewhere in the archives that show the air cleaner, tube and precleaner.

Good luck with your tractor. I really like mine.

Follow Ups:

• Re: Re: 641d workmaster Scott 09:50:49 10/17/02 (0)

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