posifour11 723 #1 Posted May 25, 2019 Picked this up cheap, mostly for parts. Guy's mechanic told him it had a cracked head. It sure did have a cracked head to match the crack across the block. The poor thing looks like it was sleeved already. I still came out way ahead for the price. New tires, wheel weights, deck and blade. 2 1 3 Share this post Link to post Share on other sites
ebinmaine 63,095 #2 Posted May 25, 2019 Ouch!! Well..... If you don't have much use for the side cover over the S/G belt lemme know..... I've got a 12 that's missing one. Good parts score though!! 1 Share this post Link to post Share on other sites
posifour11 723 #3 Posted May 25, 2019 19 minutes ago, ebinmaine said: Ouch!! Well..... If you don't have much use for the side cover over the S/G belt lemme know..... I've got a 12 that's missing one. Good parts score though!! Pay for shipping and it's yours. 2 1 1 Share this post Link to post Share on other sites
ebinmaine 63,095 #4 Posted May 25, 2019 16 minutes ago, posifour11 said: Pay for shipping and it's yours. You're on!!! PM sent. Share this post Link to post Share on other sites
JAinVA 4,619 #5 Posted May 25, 2019 Is that a dent in the exhaust valve?It would quite a bit of force to do that much damage.Never seen anything like that either. 1 Share this post Link to post Share on other sites
posifour11 723 #6 Posted May 25, 2019 17 minutes ago, JAinVA said: Is that a dent in the exhaust valve?It would quite a bit of force to do that much damage.Never seen anything like that either. I don't think so. It looks like a machined slot. The darned thing turns over just fine. Valves open great and all. Share this post Link to post Share on other sites
Stormin 9,975 #7 Posted May 25, 2019 The mark in the exhaust valve is for identification. Though why I don't know. I've seen cracked heads and crack blocks, but never a cracked block on an air cooled engine. 3 Share this post Link to post Share on other sites
gwest_ca-(File Mod) 10,491 #8 Posted May 25, 2019 That is what I expect to see after the use of starter fluid. Gasoline in a diesel engine leaves tracks like that. Garry 5 Share this post Link to post Share on other sites
stevasaurus 22,229 #9 Posted May 25, 2019 I think Garry is correct...that is split along the axis that is the weakest, implying an explosion of internal magnitude. 2 Share this post Link to post Share on other sites
JoeM 7,621 #10 Posted May 25, 2019 Block weakened by the sleeve job? 3 Share this post Link to post Share on other sites
ZXT 2,394 #11 Posted May 26, 2019 Looks like a nice tractor other than the engine! I'd find another engine to slap in it and call it a day. Could be weakened by the sleeve job, that shouldn't have cracked the head i wouldn't think. 1 Share this post Link to post Share on other sites
Sarge 3,462 #12 Posted May 27, 2019 If you overheat an air-cooled engine far enough - they will indeed crack, badly. Sarge Share this post Link to post Share on other sites
clueless 2,898 #13 Posted May 28, 2019 Can you say San Andreas . 1 Share this post Link to post Share on other sites
The Tuul Crib 7,332 #14 Posted May 28, 2019 (edited) A little JB weld and good as new! Right? Edited May 28, 2019 by The Tool Crib Share this post Link to post Share on other sites
lynnmor 6,770 #15 Posted May 28, 2019 I wonder if it filled with water and froze solid. 1 1 Share this post Link to post Share on other sites
8ntruck 6,364 #16 Posted May 30, 2019 Would an excessive press fit on the sleeve contribute to the block crack? Share this post Link to post Share on other sites
Howie 882 #17 Posted May 31, 2019 I too am wondering if too much press on the sleeve. With my eyes I do not see a crack on the sleeve only on the block. I don't pretend to know what is correct but have dealt with press on our die casings at work and have seen them split with to much press on them. Share this post Link to post Share on other sites
lynnmor 6,770 #18 Posted May 31, 2019 On 5/28/2019 at 9:29 AM, lynnmor said: I wonder if it filled with water and froze solid. I see that 953 nut is confused. The engine appears that it spent plenty of time outdoors. If it sat in a way that rain got inside, perhaps from a missing air cleaner, then the cylinder could be filled with water. If freezing temperatures caused the water to freeze solid, that can break the engine. Share this post Link to post Share on other sites
953 nut 51,647 #19 Posted May 31, 2019 6 hours ago, lynnmor said: I see that 953 nut is confused. The engine appears that it spent plenty of time outdoors. If it sat in a way that rain got inside, perhaps from a missing air cleaner, then the cylinder could be filled with water. If freezing temperatures caused the water to freeze solid, that can break the engine. I didn't see any rust in the pix! Share this post Link to post Share on other sites
bottjernat1 2,189 #20 Posted May 31, 2019 Ouchy! JB weld it. u be alright. LOL Ive seen alot of old kohler's and i have tore lots apart over the years yet i have never seen one crack like that. must have either got way to hot or from the looks of this one submerged in water. Share this post Link to post Share on other sites
Pullstart 59,680 #21 Posted May 31, 2019 Nice tractor! You never mentioned how it runs? 2 Share this post Link to post Share on other sites
posifour11 723 #22 Posted June 9, 2019 On 5/31/2019 at 6:55 AM, pullstart said: Nice tractor! You never mentioned how it runs? It pushes easier than my auto tractors. 😀 1 Share this post Link to post Share on other sites
