Seized clutch

If the peddle works and feels like it should and goes all the way to the floor and the linkage and throwout bearing are adjusted correctly and moving then the pressure plate is moving like it should. That means the disc/discs are stuck to plate surface or flywheel surface. I have let an engine run up to temp. Alternate the revs while pushing the peddle in and out. May take 1500 or higher. Leave trans in neutral while doing this. Then gently try to put in a high gear while doing this is next step to try. After everything is warmed up if still no luck Sometimes tapping the pressure plate with hammer and a bar all the way around while slowly rotating engine over by hand may help.

 

Push the clutch down and hold it with a tire bar, stick, etc. Then maybe get after the pressure plate with an air hammer, rotating the engine every once in a while.

Or, unbolt the pressure plate and start/stop repeatedly

I bet unbolting would work pretty quick.

 

I'd unbolt the pressure plate completely, then push the clutch down to seperate (depending on clutch style) the inner disc from the pressure plate or center plate.

The discs will probably still be stuck on the flywheel/pressure plate/center plate, but I think the start/stopping would have enough vibration to start freeing it

 

Not a big truck, but just dealt with it last year with a John Deere diesel backhoe. Flat pry bar with a hammer - have someone bump the starter with the clutch pedal down- go round it a few times, nothing too crazy.

If it frees enough, then go for a drive and 'burn' the clutch a bit to clean it up. I freed it the first time, let it sit inside, then a week later had to do it again. It's fine now.

 

When I bought this truck from my ex employer it was setting at a marina in Ansley, Mississippi. Been setting close to a year and the storm water had came up to the exhaust manifold which was evident by the grass all up on the engine.

It was a bear to load on my lowboy with a stuck clutch but I managed.

After getting it home I hauled it to Charleston to use the boom on a job for my cousin. There was a long concrete driveway at his shop, I got it into 3rd gear and while holding the clutch pedal down started working the throttle up and down quickly using the weight of the truck and the slop in the driveline like a impact against the clutch, it broke loose and has worked great ever since….

 

Old farm trick Put it in HIGH gear (like 8th or 10th), clutch pedal down, start it in gear. Let it idle in a wide open area. Then lightly stab the throttle and brake at the same time. Don’t go craz just load and unload it. You’re trying to shock it loose. High gear gives it more leverage.

If you’ve got room where’s it’s sitting Start it in gear, clutch down, get rolling slow, then stab the brakes hard while keeping the clutch pedal on the floor. Sometimes it’ll pop loose with a bang good sound in this case. Another trick if you can accesss it Pull the inspection cover off the bellhousing and spray some penetrating oil in there while someone holds the clutch down. just enough to get around the disc edge. Let it sit overnight. Then try the shock method again.
Worst case redneck it method Hook it to something heavy (another truck, loader, whatever), clutch pedal down, and have them pull against it in gear while you stab
none of that breaks it free, yeait’s probably rust welded pretty good and you’re splitting it. At that point you’re better off putting a clutch in it anyway because even if it frees up its scream