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Re: D17 Gas repair questions

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06-05-2003 15:33:39

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extractors work o.k., but like you said you need to drill a hole down the middle of the bolt first. I have had better luck starting with a 1/4 inch drill and trying to get it centered. grind the blolt shank flat, then center punch it first. if you get real close, go ahead and drill it again with a 5/16 drill, etc. Sometimes i go untill i can pick the bolt threads out with a awl, and never use the extractor. I also like to use a carbide bit concrete drill. Cuts real good in hard bolts. We can get the head bolt torque later, you got a long way to go before that. Gasket is not a major problem. The rear seal is a major job. You need to block both ends of tractor so it wont rolll over when you split it. A agree, if you intend to do this, get a book and read it 4 times before you start. If it dont leak too bad, might not wnat to do the rear seal right now, stick with the easier stuff.

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Virgil Walden

06-05-2003 18:14:13

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 Re: Re: D17 Gas repair questions in reply to steve, 06-05-2003 15:33:39  
Steve, I dont really understand what you mean about blocking it. You mean so it doesn't roll, like something behind the wheels, or something to hold something up? The rear seal leaks terribly, once I turn it off oil just pours out from the housing.


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06-05-2003 19:14:06

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 Re: Re: Re: D17 Gas repair questions in reply to Virgil Walden, 06-05-2003 18:14:13  
if you disconnect the mtor from the transmission, the motor is balanced on the front wheels and something holding up the back of the motor? the something is very important. and the front axle can "tilt" side to side so it has to be wedged to the frame so it will not rock.---------i did not know the seal was felt and split as mentioned above. i think he has a good idea. pull the oil pan off. then rotate the motor slowly and pull the felt off the top half of the crankshaft. the pto drive out the back of the tractor might be used to turn slowly with apipe wrench which will rotate the motor slowly. you could also use a hand crank on the front end below the radiator.-------Virgil, not to be insulting, but your questions make me believe you have not spent much time as a mechanic. It might be a good idea to find a local guy or helper who has more experience and can guide you thru this. Even if you had to pay him for a day, and you do all the cleaning and grunt work, and use him when needed for guidance and instruction. Just a thought.

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06-06-2003 19:33:27

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 Re: Re: Re: Re: D17 Gas repair questions in reply to steve, 06-05-2003 19:14:06  
Unless the seal is different than on my WD, which I doubt as they are the same block, it would be difficult to get the seal out and the new one into the upper half of the seal holder. The upper half of the seal is in a romoveable piece bolted to the block behind the flywhee. My WD nanual says "To replace the rear seal, remove the engine, oil sump, clutch and flywheel. Remove the rear main bearing cap and the upper seal retainer." Look in the parts book and see if there is a "seal retainer that goes on the back of the block to hold the upper half of the seal. The bearing cap holds the bottom half of the seal.
It may be possible, as someone said, to change the seal with the engine in the tractor, I don't know, I have never tried. If I had to do it I would remove it as the seal felt is a tight fit into the seal retainer and bearing cap. It would be a very difficult job trying to get it in from under the tractor I think. Far easier with the engine out and flywheel off. I would want the engine out and turned bottom side up, make it far easier to get the parts and gaskets all back in place with no oil leaks. Just my thoughts. I think the idea of finding someone with some experience to help is a good idea. There is nothing wrong with learning as you go, but you are going a little deep here a little too fast I think and you have heavy parts that could hurt you if they aren't supported properly as you take them apart. If you were closer by I would be gald to hlep, sorry I can't.

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Virgil Walden

06-06-2003 05:19:54

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 Re: Re: Re: Re: D17 Gas repair questions in reply to steve, 06-05-2003 19:14:06  
Steve, I appreciate the info and I don't feel the least bit insulted, that's why I am asking the questions, because I am not a mechanic and this is also the first tractor I have ever had. Thanks


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