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Oil leak in 88

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John

12-10-2000 07:07:25




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I rebuilt the gas engine in my 88 Rowcrop, front oil seal was leaking under the bottom pulley after running about 15 hours. I pulled the front cover off and used shims between the crankshaft gear and the oil seal. Still leaking some. Any suggestions?




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B A Star

12-10-2000 23:03:10




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 Re: Oil leak in 88 in reply to John, 12-10-2000 07:07:25  
MCL in IN is correct, howerver the seal fits around the front crankshaft pulley hub. Pull the pulley and measure the pulley hub and the recess in the front cover for the original dust felt for new seal dimension. Take a die grinder and remove the projections (they were there to prevent felt rotation) in the area for the old felt. Make a gasket to fit between pulley and orignal seal. A bearing and seal supplier will be able to supply a seal to the dimensions. We assume that the crankcase breather is not plugged.

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MCL in IN

12-13-2000 12:31:28




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 Re: Re: Oil leak in 88 in reply to B A Star, 12-10-2000 23:03:10  
Sounds right. Been a while since I sold any or worked on one.



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Gary

12-10-2000 17:05:02




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 Re: Oil leak in 88 in reply to John, 12-10-2000 07:07:25  
Be sure the seal is not fitting to tight on the pulley. I've also had these leak if there is excess play in the thrust brg. which lets the crank move back and forth while running



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MCL in IN

12-10-2000 13:21:14




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 Re: Oil leak in 88 in reply to John, 12-10-2000 07:07:25  
Around here if it doesn't leak it must be empty. From my days in the parts business we would get a regular lip-type seal and install in the front cover where the felt goes. The I.D. of the seal obviously fit around the crankshaft. Unfortunately the dealer is closed and I don't know the seal #. Measure the crank diameter and the inner diameter of the recessed area of front cover and go to a good automotive store that will be willing to help you look. Leave the original seal intact. This gives you one more seal for the oil to have to get through. This applies for any Oliver engine that uses that god-forsaken mechanical cork seal.

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John Mann

12-10-2000 10:30:49




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 Re: Oil leak in 88 in reply to John, 12-10-2000 07:07:25  
I am no expert but I thought about your problem. Does your front cover have any wear in it, or possibly worn? I have done a few of these and had the same problem. Hope you have some luck . John Mann



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bob

12-11-2000 07:58:07




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 Re: Re: Oil leak in 88 in reply to John Mann, 12-10-2000 10:30:49  
if new seal runs in old groove or have trouble stoping leak they make adouble seal and if shaft has agroove you can buy aspeedy sleeve slides over shaft and install bigger seal



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