Joined
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10 Posts
Day 1:
so i started tearing down Grandfather Case today. man! what a pain to get the engine out! i was expecting it to be easy as all four corners of the engine and block are exposed meaning the bolts wouldn't be difficult to reach. boy was i wrong! turns out the hydraulic cooler lines ran RIGHT underneath them! so next came the task of getting those lines outta the way. i removed the grill and the cooler, next i wanted to drain the rest of the hydraulic fluid before i went any further as removing the cooler resulted in a minor spill. i get out a good 5/8s box end and begin removing the drain plug, dang! some gorilla has really reefed that thing on there! try out my good pipe wrench, still nothing! just rounding off the plug. alright, time to get serious! i flipped the tractor on its side, put my good pipe wrench on the drain plug with a long breaker bar on the handle, notta! that plug aint budging! the same guy who used nails as cotter pins on this thing musta put that drain plug in there i'll just ignore that delema for now and try to get these lines outta the way. with the tractor on its side i found it fairly easy to excess the engine bolts, there was JUST enough give in those lines so i could be able to push them aside while removing the bolts. good news is, i got them all out! and with that i threw the towel in for the day, i'll remove the engine completely tomorow and assess its damage. some more good news is that the hydraulic oil that did come out was very clean! bad news? well all i can say is grandfather case had a pretty bad oil leak for a long time, pretty much every surface near the front end and below the oil pan had at least a good 1/16" of caked on oil,dirt,grass and sand. i managed to scrape most of it off, gonna get a good de-greasing when the engine gets pulled
heres a before and after shot of today, probably spent a good 3 hours on it today, and then another 1 hour+ cleaning up the infamous grandfather case oil spill. man i love this thing!! :thumbsup:
day 2:
got the engine out quickly and proceeded to soak the rest of the tractor in de-greaser followed by a good powerwash. i made sure to cap off the open hydraulic lines.
with the engine and hydraulic pump out i had a good chance to have a closer look at the pump. seller had told me it was rebuilt about 3 years ago, i believe him. the cast iron kohler, like my other cast iron engines, is HEAVY! decided not to tear my back up and used my 1 ton chain hoist to lift it out and on to my work bench. work smarter not harder!
i then went at it on the engine. removed the the oil pan releasing a small amount of oil blacker then sin and LOTS of little tiny bits and pieces of connecting rod the top of the piston is very scored and the crank journal is beyond a .10 turning, this engine shows signs of overheating and based on the thick oil/grunge that i power washed off the frame, i'd say lack of oil is what made it blow. based on the damage i'd say the engine was going wide open when the connecting rod let go, amazingly enough the block and the rest of the inards look alright! there might be hope for this engine yet!
Day 3:
didnt do a whole today on it, kinda stumped with this engine... the crank shaft is VERY scored past a .10" turning IMHO. so where the heck am i gonna find a replacement crank just like this one?
is the section i circled a removable adapter or is it all one piece with the crank??
any help on this would be great, im not really sure where im gonna go now with this project...
so i started tearing down Grandfather Case today. man! what a pain to get the engine out! i was expecting it to be easy as all four corners of the engine and block are exposed meaning the bolts wouldn't be difficult to reach. boy was i wrong! turns out the hydraulic cooler lines ran RIGHT underneath them! so next came the task of getting those lines outta the way. i removed the grill and the cooler, next i wanted to drain the rest of the hydraulic fluid before i went any further as removing the cooler resulted in a minor spill. i get out a good 5/8s box end and begin removing the drain plug, dang! some gorilla has really reefed that thing on there! try out my good pipe wrench, still nothing! just rounding off the plug. alright, time to get serious! i flipped the tractor on its side, put my good pipe wrench on the drain plug with a long breaker bar on the handle, notta! that plug aint budging! the same guy who used nails as cotter pins on this thing musta put that drain plug in there i'll just ignore that delema for now and try to get these lines outta the way. with the tractor on its side i found it fairly easy to excess the engine bolts, there was JUST enough give in those lines so i could be able to push them aside while removing the bolts. good news is, i got them all out! and with that i threw the towel in for the day, i'll remove the engine completely tomorow and assess its damage. some more good news is that the hydraulic oil that did come out was very clean! bad news? well all i can say is grandfather case had a pretty bad oil leak for a long time, pretty much every surface near the front end and below the oil pan had at least a good 1/16" of caked on oil,dirt,grass and sand. i managed to scrape most of it off, gonna get a good de-greasing when the engine gets pulled
heres a before and after shot of today, probably spent a good 3 hours on it today, and then another 1 hour+ cleaning up the infamous grandfather case oil spill. man i love this thing!! :thumbsup:


day 2:
got the engine out quickly and proceeded to soak the rest of the tractor in de-greaser followed by a good powerwash. i made sure to cap off the open hydraulic lines.
with the engine and hydraulic pump out i had a good chance to have a closer look at the pump. seller had told me it was rebuilt about 3 years ago, i believe him. the cast iron kohler, like my other cast iron engines, is HEAVY! decided not to tear my back up and used my 1 ton chain hoist to lift it out and on to my work bench. work smarter not harder!
i then went at it on the engine. removed the the oil pan releasing a small amount of oil blacker then sin and LOTS of little tiny bits and pieces of connecting rod the top of the piston is very scored and the crank journal is beyond a .10 turning, this engine shows signs of overheating and based on the thick oil/grunge that i power washed off the frame, i'd say lack of oil is what made it blow. based on the damage i'd say the engine was going wide open when the connecting rod let go, amazingly enough the block and the rest of the inards look alright! there might be hope for this engine yet!



Day 3:
didnt do a whole today on it, kinda stumped with this engine... the crank shaft is VERY scored past a .10" turning IMHO. so where the heck am i gonna find a replacement crank just like this one?
is the section i circled a removable adapter or is it all one piece with the crank??

any help on this would be great, im not really sure where im gonna go now with this project...