First time poster, but I've done a lot of reading and searching here and y'all have helped me a bunch already, but now I'm stumped with this 8n.
I was mowing with her a few weeks ago, after an oil change, when she overheated, made a horrible squeak, and stopped. Since then the engine won't turn over but for maybe a quarter turn, unless I take the plugs out. With the plugs out it turns over fine.
So far I've tried
-mmo down the plug holes, let it sit a few days, no change. Repeated this with motor oil, then with mmo again, several rounds of this along with cranking by hand and with the starter with the plugs out
-cranking it with a wrench, turns fine with plugs out, takes some effort but I can turn it with the plugs in too
-dragged it around the yard and up the driveway in gear, she just skidded wherever I took her
-tried to roll start down a steep gravel drive in third gear, nothing but a 20 feet skid mark to show for it
-jacked the backend up, wheels turn freely in opposite directions when it is in gear
-removed the head and oil pan over the weekend expecting to find something broken or stuck everything moves just fine in there and visually seems ok, buttoned her back up and...same thing
It's a 6 volt system. It really acts like it just doesn't have enough Juice to turn the engine, I've been charging the battery between starting attempts and tried to jump it with a 12 volt in my running truck hooked directly to the big post on the starter and a ground, same thing.
Wires are thick, clean bright and tight (as they say)to the starter, the wiring after that isn't great, I have a wiring harness on order, but I'm not sure that's going to fix my issue since it really seems like something mechanical is preventing this thing from turning over freely through the compression stroke.
Anyone have any ideas? I'm not a mechanic, but I would really like to learn more about this and I'm willing to give anything a shot at this point.
I was mowing with her a few weeks ago, after an oil change, when she overheated, made a horrible squeak, and stopped. Since then the engine won't turn over but for maybe a quarter turn, unless I take the plugs out. With the plugs out it turns over fine.
So far I've tried
-mmo down the plug holes, let it sit a few days, no change. Repeated this with motor oil, then with mmo again, several rounds of this along with cranking by hand and with the starter with the plugs out
-cranking it with a wrench, turns fine with plugs out, takes some effort but I can turn it with the plugs in too
-dragged it around the yard and up the driveway in gear, she just skidded wherever I took her
-tried to roll start down a steep gravel drive in third gear, nothing but a 20 feet skid mark to show for it
-jacked the backend up, wheels turn freely in opposite directions when it is in gear
-removed the head and oil pan over the weekend expecting to find something broken or stuck everything moves just fine in there and visually seems ok, buttoned her back up and...same thing
It's a 6 volt system. It really acts like it just doesn't have enough Juice to turn the engine, I've been charging the battery between starting attempts and tried to jump it with a 12 volt in my running truck hooked directly to the big post on the starter and a ground, same thing.
Wires are thick, clean bright and tight (as they say)to the starter, the wiring after that isn't great, I have a wiring harness on order, but I'm not sure that's going to fix my issue since it really seems like something mechanical is preventing this thing from turning over freely through the compression stroke.
Anyone have any ideas? I'm not a mechanic, but I would really like to learn more about this and I'm willing to give anything a shot at this point.