B2150 with V1200-5B engine
I have a possible hydrolock on my hands. Yesterday I started my tractor, let it warm up a little at a high idle, then went to hook up to my 3-pt finish mower. Noticed the tach was jumping around weird, needle went way past max RPM (engine did not), but hour meter clicked over at reasonable duration so just assume I need to oil it better but I swear I oiled it as recommended just a couple months ago. Shut off the tractor to hook up mower, restarted with no issue and drove mower to my work area to tend to bearings and blades. Hour or so later wanted to raise the mower and restarted fine but LOTS of white smoke of the unburned fuel variety which didn't clear up as I upped the RPM - though maybe somehow, someway I had air enter the system; shut it down. Two hours later I went to restart the mower and engine acted hydrocked so didn't hit the key again. Pushed the tractor into the garage as I wasn't feeling well at all (not tractor fume related, haven't felt great for a few days).
I'm positive it's fuel that caused the smoke by the smell, not coolant. I have about 0.7 hours on a "rebuild" of the engine - new sleeves, pistons, rings, bearings, etc. Last time I used the tractor was the first start, so tried to put a good, varied load on the engine for a solid 30 minutes. Let it cool for a couple of days then retorqued the head and reset the valves. Maybe 30 engine hours ago had the injectors checked/repaired/etc. by a fuel injection shop, not a mechanic. At the same time, had the cylinder head replaced and gone through by a shop that specializes in cylinder heads (Noland's Cylinder Head Service in Kansas City).
The fuel level in the tank is almost full, so I'm wondering if I have a faulty delivery valve, injector stuck open, etc. I shut the fuel petcock (it was shut this morning before I started the tractor for the first time). I checked the dipstick after it had sat awhile from my pushing it in the garage and the level was correct. I checked the spill timing last year, and as I recall I actually needed to remove the spacers even after I removed the one injection pump spacer that was there, so does that indicate I need a new injection pump? That my fuel cam is bad? I can't find anything of value in my V1200 engine workshop manual.
Any ideas on what to check for what caused this?
Should probably mention engine was rebuilt because last spring the #1 piston shattered while mowing the yard. I replaced the rod, obviously. Crank checked out good, amazingly. Engine was all checked out dimensionally by an engine machine shop, and found to be great. I measured piston protrusion at reassembly and the metal head gasket shim was found to NOT be required, per the engine manual.
I have a possible hydrolock on my hands. Yesterday I started my tractor, let it warm up a little at a high idle, then went to hook up to my 3-pt finish mower. Noticed the tach was jumping around weird, needle went way past max RPM (engine did not), but hour meter clicked over at reasonable duration so just assume I need to oil it better but I swear I oiled it as recommended just a couple months ago. Shut off the tractor to hook up mower, restarted with no issue and drove mower to my work area to tend to bearings and blades. Hour or so later wanted to raise the mower and restarted fine but LOTS of white smoke of the unburned fuel variety which didn't clear up as I upped the RPM - though maybe somehow, someway I had air enter the system; shut it down. Two hours later I went to restart the mower and engine acted hydrocked so didn't hit the key again. Pushed the tractor into the garage as I wasn't feeling well at all (not tractor fume related, haven't felt great for a few days).
I'm positive it's fuel that caused the smoke by the smell, not coolant. I have about 0.7 hours on a "rebuild" of the engine - new sleeves, pistons, rings, bearings, etc. Last time I used the tractor was the first start, so tried to put a good, varied load on the engine for a solid 30 minutes. Let it cool for a couple of days then retorqued the head and reset the valves. Maybe 30 engine hours ago had the injectors checked/repaired/etc. by a fuel injection shop, not a mechanic. At the same time, had the cylinder head replaced and gone through by a shop that specializes in cylinder heads (Noland's Cylinder Head Service in Kansas City).
The fuel level in the tank is almost full, so I'm wondering if I have a faulty delivery valve, injector stuck open, etc. I shut the fuel petcock (it was shut this morning before I started the tractor for the first time). I checked the dipstick after it had sat awhile from my pushing it in the garage and the level was correct. I checked the spill timing last year, and as I recall I actually needed to remove the spacers even after I removed the one injection pump spacer that was there, so does that indicate I need a new injection pump? That my fuel cam is bad? I can't find anything of value in my V1200 engine workshop manual.
Any ideas on what to check for what caused this?
Should probably mention engine was rebuilt because last spring the #1 piston shattered while mowing the yard. I replaced the rod, obviously. Crank checked out good, amazingly. Engine was all checked out dimensionally by an engine machine shop, and found to be great. I measured piston protrusion at reassembly and the metal head gasket shim was found to NOT be required, per the engine manual.
