My first action was to pull the belt cover and put a wrench on the bolt head of the crank. I was able to rotate the engine about 3/4 way backwards and forwards. I have a flat-head Honda generator I was given which had the same symptoms but was caused by crud build-up on the cylinder head.
When I pulled the head of the snowblower the cylinder was about 1/2 inch from the top and had about three tablespoons of water frozen there. I scooped it out and the engine would rotate freely completely around. I left it open with a heater on it to evaporate any water I couldn't get with a cloth. The head had the very start of rust (water was only in for three weeks by my guess) and was easily cleaned up with a scotchbrite pad.
When I thawed out the chunk of ice which was in the carb bowl, the gas started flowing into my catch can completely freely.
I had just changed the oil but when I checked it yesterday it wasn't "fresh" oil. It had a slightly milky appearance. That leads me to believe that I have water in the crank still. My sleuthing has led me to the possibility that with a bit of water in it the oil will froth up and cause this issue.
I also think that there could be water frozen somewhere in the system. causing the over pressurization. I plan to change the oil again and keep it in a heated area for a while and see where that gets me. I don't mind pulling it apart again but taking off all the fiddly little bits of plastic is a chore. I did re-use the head gasket but it looked pristine to me (even though the machine is 7 years old). There was no scoring or significant discolouration of the cylinder or cylinder wall. And it ran fine for 10 minutes after re-assembly. I'm hoping its errant water frozen somewhere and will work out with some heat.
Upload one or more videos to your post. Photo and video filesizes should be less than 8MB. Formats allowed are gif, jpg, png, ogg, mp4, mov, and avi. Be sure to use filenames without spaces or special characters, and filetypes of 3 digits lower case.
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 - Restoration Story: Fordson Major - by Anthony West. George bought his Fordson Major from a an implement sale about 18 years ago for £200.00 (UK). There is no known history regarding its origins or what service it had done, but the following work was undertaken alone to bring it up to show standard. From the engine number, it was found that this Major was produced late 1946. It was almost complete but had various parts that would definitely need replacing.
... [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.
