I'm not saying that it is your problem, but I'll tell you a little story about Injector pump timing that will make a few guys in the know nod their head.
I have an 806 diesel. I've had it for 5 years and it was always a bear to start at anything below 60 degrees. When I got the tractor, I had to have the roosa master pump rebuilt due to the plastic governor ring inside going bad. A friend with a pump shop did it for me. He told me, "It's all new inside, with all the updated parts available." Well, I timed it as it should be for a d-361, and all was well except having to have ether handy below 60 degrees (or 3 hours of block heater.) Well, fast forward 4 years, and questions on here and to friends more knowledgeable than me. Some said to check your pump timing, it'll make all the difference. I figured, I knew it was right, I did it. And I checked it on a few occasions. Well, I was looking through my service manuals one day (I have the 361 and 407 diesels service manual) and it said that there are different timing specs for d-361 and d-407 diesels, and if d-407 pumps are used on d-361's, to set them at d-407 timing (about 2 degrees advanced IIRC.) Well, I thought, My pump has "All the updated parts", which may include a d-407 advance mechanism, so let's try timing to the d-407 spec. I didn't notice anything different at first, it was summertime. When fall and winter hit, what a difference! It starts much better in the cooler weather (I still plug it in if I know I need it below 45 degrees or so, to plow snow, etc.)
Moral of the story: That 2 degrees made a heck of a difference for starting when I finally figured out that it was the problem. -Andy
This post was edited by FC Andy at 15:42:42 10/27/11.
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Today's Featured Article - Grain Threshing in the Early 40's - by Jerry D. Coleman. How many of you can sit there and say that you have plowed with a mule? Well I would say not many, but maybe a few. This story is about the day my Grandfather Brown (true name) decided along with my parents to purchase a new Ford tractor. It wasn't really new except to us. The year was about 1967 and my father found a good used Ford 601 tractor to use on the farm instead of "Bob", our old mule. Now my grandfather had had this mule since the mid 40's and he was getting some age on him. S
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