If I was you, I'd fix the Cub.
The engine is easy to change. We put a 12 hp Kohler in our 109 after the 10 hp Kohler bit the dust.
Today's tractors are not built anything like the old CC's such as yours. I wish we'd kept ours.
I agree with that, especially if you like the old mower. Most new riders -that are affordable - are just disposable machines. What engine do you actually have in the old Cub? And sometimes a broken rod doesn't completely destroy the old motor, new parts might be found NOS on ebay for very reasonable money.
I agree with that, especially if you like the old mower. Most new riders -that are affordable - are just disposable machines. What engine do you actually have in the old Cub? And sometimes a broken rod doesn't completely destroy the old motor, new parts might be found NOS on ebay for very reasonable money.
If I was you, I'd fix the Cub.
The engine is easy to change. We put a 12 hp Kohler in our 109 after the 10 hp Kohler bit the dust.
Today's tractors are not built anything like the old CC's such as yours. I wish we'd kept ours.
IIRC, it has something similar to a Lovejoy coupling between the flywheel and transmission input shaft--they just slide apart.
It's been a LONG time since I swapped out that engine but I know I had no hoist. Just muscled the thing out of there, not knowing what it weighed. You can make it lighter by taking off as much as possible, such as the starter/generator, head, carb/intake, exhaust, etc. Might have removed the hood and grill, too, just to gain easier access.
Without a hoist? WOW! A guy on another forum just said the same thing to me. What about as you're removing the mounting bolts on the bottom? Won't the engine fall to the floor if it's not supported either from above or below? As to the flywheel / trans coupling, it looks like there are 4 bolts connecting the shaft, so not quite certain. I'm sure I can find it in the manual - probably under the section that covers separating the tractor.
Thanks...this all sounds like something that is doable, since I've worked around this engine for so many years and had all the stuff off that needs to come off as mentioned in the instructions - just never actually looked all around the bottom of the engine, etc. to see how it actually attaches to the frame.
Please at least check a parts dook before posting drivel.
Ride on engines sit on top of the deck and are bolted down from underneath.
If you had ever actually seen an engine sitting on the flloor it would be abundantly obvious how they mount.
Please at least check a parts dook before posting drivel.
Ride on engines sit on top of the deck and are bolted down from underneath.
If you had ever actually seen an engine sitting on the flloor it would be abundantly obvious how they mount.
Seriously? I didn't realize one had to already be an expert on all things mechanical before posting here. I have never had one of these engines out, knew absolutely nothing about HOW they come in or out prior to discussing all this recently, so...how about a 'fair crack of the whip'?
I am not trying to be an A'hole or even to deride you or your opinions.
This is an open public forum and everyone's opinions are welcomed.
I am sure CPURVIS fees duely complimented by your admiration of his feat.
And had you left it there there would have been no reason for any further comment.
however as you have done, many others come here looking for answers and they expect to see things that are correct.
Thus a statement that the engine can fall on the ground needs to be corrected.
If not for the benefit of you then for the benefit of others who will read this thread in the future.
Now in both this thread and the similar one you are running in the Cub Cadet sub section you claim to had this mower for 47 ears and you have done nearly all of the work on it .
Thus by now you should have noticed the engine sitting on the floor with the ends of the bolts poking up through the engine mounting plates.
When you first posted your post was taken as being genuine, as most are, however the longer it runs the more suspect it appears to become.
The 129's run a single cylinder horizontal crank engine that slides right off the mower floor the single drive shaft that goes back to the tranny sis clearly visible and you should have seen it because over the 47 years you have owned it you should have been greasing the universal joint or by now it will have packed it in.
\So you should be well aware that there is nothing connected to the engine but the drive shaft at the back , the PTO pulley at the front and the engine control wires.
I find it a touch too hard to believe that you are still running the original PTO belts.
Now we do get a few poor souls with nothing better to do with their time but come on here with pretend problems either because they are lonely or they get their jollies by trying to fool good natured people who try to help others.
The longer these two thread runs the more I feel you are the latter.
Thus my time of attempting to offer useful advice is over, however I will step in to correct things which are factually wrong because it is very important that specialty forums like this one spread correct information.
Well we have come to an understanding so all is well.
Having had some serious thoughts about your problem there is something I had not taken into account.
If you go for a replacement engine it will need to have the same shaft diameter and more important the height of the pro shaft from the deck will need to remain the same or you will be in for a few problems with the front PTO.
The back is not so important as the shaft has some wiggle room.
Thus you really should be looking at an engine with an electric PTO.
That will get rid of all that clutch lever system so make the mower easier to use but clutches are expensive and bought as a seperate item.
I have not checked the mounting height of the output shaft but most of the late model engines are higher.
Three I would repower your mower..... 2 reasons it lasted you that long and a newer mower costs way more cash for a cheaper built piece of crap.........
If your dealer is wanting you to spend almost 10 grand for what you already posted then go ahead and buy a Kubota diesel tractor in the 25 HP range.......
That simple.......
Otherwise watch my buddy on this video series and see how he swaps a engine from a Simplicity OLD school lawn tractor...
You will have to skip the first part of the vid to 7:00 minutes though......
https://youtu.be/yJltCLZBknA
With as much discussion as has taken place over whether to keep or replace the Cub yet still unable to reach a decision, I would guess that you'll be second guessing whatever decision you make for years to come. You are suffering from what is known as 'analysis paralysis' i.e., afraid of making a mistake. If I had to guess your occupation, it would be engineer for the reason that I've seen so many engineers freeze up when making even the simplest decision when their own money was involved. (FWIW, I'm an engineer.)
You've been given reasons why you should keep the Cub. I've seen few if any reasons given as to why you should spend triple the money on a modern-day tractor with its modern day engine and systems. The Cub was built in a time when successive years showed improvements over the prior year's model. Sometime between then and now, that corporate business model was replaced with decades of cost cutting. If the Simplicity has not been a victim of this, by all means buy it.
You've heard the saying, "You can lead a horse to water but you can't make him drink." In this case, the horse is standing at the water's edge: Please take a drink, or just flip a coin.
Please at least check a parts dook before posting drivel.
Ride on engines sit on top of the deck and are bolted down from underneath.
If you had ever actually seen an engine sitting on the floor it would be abundantly obvious how they mount.
Hi,
As can be seen on the Cub Cadet forum, I posted my recent dilemma in that my engine just went bad on my '72 Cub Cadet 129. This tractor has lasted me for 47 years and has still been running great until a connecting rod broke yesterday. A local dealer has suggested that (in his opinion anyway) it is not worth it to put a rebuilt engine in the Cub. I'm not certain of that. But, his other suggestion was to replace it with a Conquest, which he claims is a very good tractor. My Cub is all cast iron and steel...don't know about the Conquest. So, to help make this decision, I'm looking for any thoughts or input, especially since I know nothing about the newer Simplicities. My parents had a 1970s model for a number of years - don't recall what eventually happened to it, but I remember using it to mow their lawn. The name rang a bell as soon as the dealer mentioned it.
He told me a ballpark figure - with deck and snow plow - would be in the neighborhood of $5800. To put a new engine in the Cub, I'm looking at around $1k - $1200 or so, depending on how much work the job would entail. What makes the decision tough is that the rest of my tractor is ALSO as old as the engine, with the exception of several (actually quite a few) parts that have been replaced of late.
Thanks for any thoughts...
Keith
I had a Conquest for 15 years and it was fantastic and any problems were very minor such as replacing a voltage regulator. About two weeks ago it actually caught fire and was totally destroyed which was a fluke. The engine was hunting which might have had a bearing on it. I've heard of similar stories since.
Do the new ones come with a free Nomex suit??,,you don't park it inside your attached garage do you,,,LOL.
Talk about shake and bake (it's better than frying)!!
Regards
Jeff
I had a Conquest for 15 years and it was fantastic and any problems were very minor such as replacing a voltage regulator. About two weeks ago it actually caught fire and was totally destroyed which was a fluke. The engine was hunting which might have had a bearing on it. I've heard of similar stories since.
Do the new ones come with a free Nomex suit??,,you don't park it inside your attached garage do you,,,LOL.
Talk about shake and bake (it's better than frying)!!
Regards
Jeff
Actually the tractor was outside when the mechanic came to fix it. He fixed the throttle problem and then HE put it in the garage planning to fix the hunting problem the next day. I came home after spending the day shopping in Kingston with my wife to discover that the tractor was burnt to the ground. Normally my tractor is always in the garage where I've always kept it for the past 15 years.
Some of us are technopeasants who may be able to perform heart transplants or land on the moon or write books of the bible but are lost when it comes to
the ins and outs of lawn tractors so lighten up and get a life.