There are only two places where you can get fuel into the crankcase on the 806. Either it has to come past the shaft seal or from unburned fuel from the injectors. If you got two additional inches in the crankcase in a half hour of running it is highly unlikely that faulty injectors are the problem. You would surely notice poor starting and excessive smoke if they were that bad. That leaves the shaft seal and pump adapter for the leak.
There is no seal inside the pump. The only seal for the fuel is the rear seal in the adapter housing. The side of the seal with the spring in the lip must face the pump. The front seal is installed with the lip forward and it is there to seal oil from getting into the pump. If the front seal were to be installed backwards it is unlikely that oil would actually leak into the pump since the fuel in the pump is under a slight pressure.
It is possible though unlikely that a porous housing is the cause. A defective housing would usually leak long before this. More likely causes would be a damaged seal, a seal installed backwards, a housing damaged when removing the old seal, or damage to the shaft.
We sell tractor parts! We have the parts you need to repair your tractor - the right parts. Our low prices and years of research make us your best choice when you need parts. Shop Online Today. [ About Us ]
Today's Featured Article - A Lifetime of David Brown - by Samuel Kennedy. I was born in 1950 and reared on my family’s 100 acre farm. It was a fairly typical Northern Ireland farm where the main enterprise was dairying but some pigs, poultry and sheep were also kept. Potatoes were grown for sale and oats were grown to be used for cattle and horse feeding. Up to about 1958 the dairy cows were fed hay with some turnips and after that grass silage was the main winter feed. That same year was the last in which flax was grown on the farm. Flax provided the fibre which w
... [Read Article]
Latest Ad:
1964 I-H 140 tractor with cultivators and sidedresser. Starts and runs good. Asking 2650. CALL RON AT 502-319-1952
[More Ads]
All Rights Reserved. Reproduction of any part of this website, including design and content, without written permission is strictly prohibited. Trade Marks and Trade Names contained and used in this Website are those of others, and are used in this Website in a descriptive sense to refer to the products of others. Use of this Web site constitutes acceptance of our User Agreement and Privacy Policy
TRADEMARK DISCLAIMER: Tradenames and Trademarks referred to within Yesterday's Tractor Co. products and within the Yesterday's Tractor Co. websites are the property of their respective trademark holders. None of these trademark holders are affiliated with Yesterday's Tractor Co., our products, or our website nor are we sponsored by them. John Deere and its logos are the registered trademarks of the John Deere Corporation. Agco, Agco Allis, White, Massey Ferguson and their logos are the registered trademarks of AGCO Corporation. Case, Case-IH, Farmall, International Harvester, New Holland and their logos are registered trademarks of CNH Global N.V.
