Posted by Oyvind Ryeng on December 09, 2020 at 13:11:06 from (88.89.82.250):
Sorry, did not mean to keep you guys hanging! After getting new valve locks from tremendous gentleman "graham_in_NJ" I got the engine put back together again. Getting the freshly semi-rebuilt engine run-in concerned me for a while, but I ended up towing my old ~1500 kg. Volvo station wagon up and down a hilly road for about an hour. I had my brother steering the car, it's engine was running and just engine braking in first gear just under 4000 RPM. It seemed like the load on the tractor was just right and the engine coolant temperature was right on the whole time. Brother just had to give it a little gas to help lessen the load near the top of the steepest inclines and the run-in "appears to have worked fine".
When doing the turbo conversion on the tractor I had mistakenly plumbed the oil return from turbo into a factory threaded hole in the block that turned out to be connected to the suction side of the oil pump! No wonder the engine oil pressure fluctuated and caused me to lose the bearings in the turbo at the end of the run-in. Got that sorted for a song a few weeks later and made a proper return path to the timing cover and that problem was solved. Seemingly happily boosting at 10 PSI at the moment; I have not yet made any changes to the fuel injection pump or fitted an intercooler.
While doing the engine work I drilled the head for modern NGK 12V glow plugs directly into the pre-combustion chambers and removed the thermostart valve in the intake manifold. The engine now starts a whole lot easier than it did previously, but still likes to have the block heater used when the temperature is below freezing; it starts noticeably easier after being plugged in for about half an hour. I believe this less-than-perfect starting in the cold is caused by losing a little static compression when refreshing the valve seats, as the new valves are seated about 0.040" deeper than before. Just over the service limit I believe, but fitting new valve seats was not in the cards at this time. Time will tell if I made the right call.
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 - The Day Mom Drove the 8N - by Brian Browning. My Dad was wanting to put in a garden but couldn't operate the 8N and handle the old horse drawn plow he had found and rigged up to use with the tractor. Well, he decided to go get Mom out of the house and have her drive the tractor while he walked behind the plow. You got to understand that while my Mom is a hard worker who will always help whenever she can... she had never operated farm machinery before that day. Dad got her out there, explained how the clutch was the same as in our o
... [Read Article]
Latest Ad:
Oliver 550 Diesel runs like a watch three point hitch pto engine gone threw about two hundred hours ago nice clean tractor
[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.
