How can the ignition timing have anything to do with this? All spark ignition engines I’ve ever worked on shut off the spark to stop the engine.
Big Boar
Of the other items mentioned, engine idle speed to fast is the main cause of this. Make sure the throttle is forward as far as it goes when shutting it off. Carbon build up probably second in line.
Well i do believe i have a LITTLE more experience with engines here . Yea not giving full thought and NOT SEEING the tractor in question ever gave a thought to the Alt. back feed . Let's see here i first started wrenchen back in around 1960 learning on BIG TONKA TOYS from the OLD GUYS . in `1963 when the new TONKA TOY arrived and i was the one to run it the OLD MAN sent me off to Cat traing to learn how to rebuild the power shift transmissions since the new FLEET of Cat's were coming and i got my new COMPANY truck as now i was full time along with every tool in a Mac. catalogue along with OTC Pullers including a new 100 ton set and potable track pin press . Not only did i run the TONKA TOYS i worked on them along when needed drove the fifty ton low boy . I was still in high school back then and a class A operating engineer . Some kid played sports me i played with motors and cars . I loved horse power and to get what i wanted i BUILT IT . When i did not know i asked the OLD GUYS . Where i worked we did EVERY THING IN HOUSE . The only thing we could not do in house was balance a crank and for that it had to go to Akron . And i could run every machine shop piece of equipment just like the OLD GUYS , Ya think you could do that at 16-and 17 years old ??? during the dirt moving months we worked moving dirt and if a machine went down ya FIXED IT where it died . I might be the only one on the job site with tools and welder working with people called in from the Hall that were there to RUN equipment that could not offer much help other then lift or hold . When winter set in we worked in the shop fixen and rebuilding along side the personnel who worked at the main shop . The OLD MAN i worked for owned not one but three Large heavy construction companys and one of the larger farms in the county . If he liked you you had a JOB FULL TIME and ya did what ever sometimes i would end up out at the farm doing Farm work . Every evening after 5 either my boss John or myself would have to haul a tank of diesel fuel out to the farm to top the farm tank off from the inground storage at the shop where was where 30000 gallon tanks were filled by tankers and the cost at the shop for Sohio Diesel supreme was 10 cents a gallon but if they came to the farm it was 14 cents a gallon . We use to have high test gas at the shop for the gas powered trucks that employees could buy at 15 cents a gallon but there were a couple that started not marking down what they took SOOOOO the old man said no more and set up a account at the little fuel stop on the west side of town where we could fill the TRUCKS but a few of us could still buy under the company name at company prices if we paid CASH . I lost my company job when i got back from Nam due to a union split and missed the book transfer dead line and could not transfer my book and to go to the new local i had to start at the bottom of the totom pole . I got ASKED to go to work for a Chrysler Plymouth dealer as a mechanic and took that job and was sent to EVERY CHRYSLER school and training and Passed the MASTER TECH program on the top five LIST and in my area i was one of two in the DISTRICT who was certified to work on the HEMI's and 440 6 Pac. . I could make your MOPAR RUN . Stayed there till the GM and i had a disagreement over my new 1969 Road Runner 440 -6 pac that the owned and i worked out on a two car deal as i also ordered in a new 69 Road Runner convertible for my one friend at a fantastic price My buddy got his but the BOSS was on vacation and the GM thought he owned the place and would not let me have my car SO having the temper i have we walked and that Road Runner sat at the dealership till sometime in late 74 before anybody would even offer to buy it . When the Owned came back the car setting in the show room and my stalls were empty and i was GONE and my customer base was no longer coming to the dealership the cocky GM was out the door . I was out of work for 24 hours when a large Ford dealer called and offered me the job of performance tech and adviser and to take charge to the dealers two drag cars. plus i got saddled with big truck work due to the fact i knew Diesels So yea i do believe i know a wee bit more about engines then you . How many winning pulling tractors have you built ?????? I don't built for every one but when i do you can bet your in for a fun ride .
 
Well i do believe i have a LITTLE more experience with engines here . Yea not giving full thought and NOT SEEING the tractor in question ever gave a thought to the Alt. back feed . Let's see here i first started wrenchen back in around 1960 learning on BIG TONKA TOYS from the OLD GUYS . in `1963 when the new TONKA TOY arrived and i was the one to run it the OLD MAN sent me off to Cat traing to learn how to rebuild the power shift transmissions since the new FLEET of Cat's were coming and i got my new COMPANY truck as now i was full time along with every tool in a Mac. catalogue along with OTC Pullers including a new 100 ton set and potable track pin press . Not only did i run the TONKA TOYS i worked on them along when needed drove the fifty ton low boy . I was still in high school back then and a class A operating engineer . Some kid played sports me i played with motors and cars . I loved horse power and to get what i wanted i BUILT IT . When i did not know i asked the OLD GUYS . Where i worked we did EVERY THING IN HOUSE . The only thing we could not do in house was balance a crank and for that it had to go to Akron . And i could run every machine shop piece of equipment just like the OLD GUYS , Ya think you could do that at 16-and 17 years old ??? during the dirt moving months we worked moving dirt and if a machine went down ya FIXED IT where it died . I might be the only one on the job site with tools and welder working with people called in from the Hall that were there to RUN equipment that could not offer much help other then lift or hold . When winter set in we worked in the shop fixen and rebuilding along side the personnel who worked at the main shop . The OLD MAN i worked for owned not one but three Large heavy construction companys and one of the larger farms in the county . If he liked you you had a JOB FULL TIME and ya did what ever sometimes i would end up out at the farm doing Farm work . Every evening after 5 either my boss John or myself would have to haul a tank of diesel fuel out to the farm to top the farm tank off from the inground storage at the shop where was where 30000 gallon tanks were filled by tankers and the cost at the shop for Sohio Diesel supreme was 10 cents a gallon but if they came to the farm it was 14 cents a gallon . We use to have high test gas at the shop for the gas powered trucks that employees could buy at 15 cents a gallon but there were a couple that started not marking down what they took SOOOOO the old man said no more and set up a account at the little fuel stop on the west side of town where we could fill the TRUCKS but a few of us could still buy under the company name at company prices if we paid CASH . I lost my company job when i got back from Nam due to a union split and missed the book transfer dead line and could not transfer my book and to go to the new local i had to start at the bottom of the totom pole . I got ASKED to go to work for a Chrysler Plymouth dealer as a mechanic and took that job and was sent to EVERY CHRYSLER school and training and Passed the MASTER TECH program on the top five LIST and in my area i was one of two in the DISTRICT who was certified to work on the HEMI's and 440 6 Pac. . I could make your MOPAR RUN . Stayed there till the GM and i had a disagreement over my new 1969 Road Runner 440 -6 pac that the owned and i worked out on a two car deal as i also ordered in a new 69 Road Runner convertible for my one friend at a fantastic price My buddy got his but the BOSS was on vacation and the GM thought he owned the place and would not let me have my car SO having the temper i have we walked and that Road Runner sat at the dealership till sometime in late 74 before anybody would even offer to buy it . When the Owned came back the car setting in the show room and my stalls were empty and i was GONE and my customer base was no longer coming to the dealership the cocky GM was out the door . I was out of work for 24 hours when a large Ford dealer called and offered me the job of performance tech and adviser and to take charge to the dealers two drag cars. plus i got saddled with big truck work due to the fact i knew Diesels So yea i do believe i know a wee bit more about engines then you . How many winning pulling tractors have you built ?????? I don't built for every one but when i do you can bet your in for a fun ride .
:unsure::oops::rolleyes: Super M with a “dieseling or run on problem”?? I’m sure someone will enjoy your historic resume, I personally don’t care.
And PS, I am not arguing whether or not you have more experience in mechanics because you definitely do. Please keep the replies here on topic. If you want to relive the past I would suggest you take it over to the “off topic” forum “Tractor Tales”
 
:unsure::oops::rolleyes: Super M with a “dieseling or run on problem”?? I’m sure someone will enjoy your historic resume, I personally don’t care.
And PS, I am not arguing whether or not you have more experience in mechanics because you definitely do. Please keep the replies here on topic. If you want to relive the past I would suggest you take it over to the “off topic” forum “Tractor Tales”
Dag-gum........I was reading along hoping I would find out some good information about a farmall M......but no..... Just a massive word salad from some guy who can't stay on topic 🧐. Mumbling about cars and trucks and BIG TONKA TOYS 😂😂😂😂. Geeze. How about we make up a golden award and send it to him...."smartest guy on Yesterday's Tractors"........??
 
Dag-gum........I was reading along hoping I would find out some good information about a farmall M......but no..... Just a massive word salad from some guy who can't stay on topic 🧐. Mumbling about cars and trucks and BIG TONKA TOYS 😂😂😂😂. Geeze. How about we make up a golden award and send it to him...."smartest guy on Yesterday's Tractors"........??
Sounds like a fine idea. Why i bet with his extreme knowledge he can fix a tractor just by looking at it!!! Maybe the original poster can send him a picture of the M. He can fix it just by looking at the picture.
 
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