Drilling the bolts isn't so easy with the later engines. The older Wisconsins had cast-iron heads, soft valves, and split-skirt pistons. The later ones - D series - have aluminum heads, Stellite exhaust valves with rotators, and cam-ground aluminum pistons. Best bet with your soft heads is to use drill guide so you can drill a small hole in the center of the broken-bolt. Then, remove the guide and the hole will keep larger drill-bits centered. With the steel-alloy bolts against the aluminum head - electroylsis causes them to fuse together. So, the threaded part of the bolt in the cast-iron block may not be stuck as bad as the shank where it passes through the aluminum head. In regard to your valves - if one was sticking partially open - you wouldn't hear any ticking. But, this sort of thing tends to happen after an engine has sat for a long time - and gotten rust on the valve-stem. It can also happen another way from overheating - but usually when that happens - the valve sticks when hot - but then frees up once the engine is cool. Any valve work on the valve seat or face requires pulling the head. Sometimes you can free a stuck valve though - just by reaching in beneath the tappet-cover. In regard to your oil being thick? No, if anything it's a little thin. That engine is designed to run with straight 30W in any temps over 40 degrees F. I don't even think it has a pressure-oil system - but I don't recall off-hand. Most of the Wisconsin twins and V-fours don't use pressure oil for lube - just use the oil pump to squirt oil on certain parts. But - some of newer engines were changed a bit - and a few had drilled crank-journals with oil ports.
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 - Usin Your Implements: Bucket Loader - by Curtis Von Fange. Introduction: Dad was raised during the depression years of the thirties. As a kid he worked part time on a farm in Kansas doing many of the manual chores. Some of the more successful farmers of that day had a new time saving device called a tractor. It increased the farm productivity and, in general, made life easier because more work could be done with this 'mechanical beast'. My dad dreamed that some day he would have his own tractor with every implement he could get. When he rea
... [Read Article]
Latest Ad:
2022 John Deere 5045E, 4wd, front end loader and 3rd function with grapple. 120 hrs, 55k new, must sell
[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.
