Help! Looking for bottom ISO rubbers

[finsruskw]

I like that!!
It appears to be the same with many in the old car hobby as well.

[spudder]

I've got a 1250 that the ISO mounts are shot. A few years ago, the local dealer replaced them with the "new" factory replacement ISO mounts from Cub Cadet.
The vibration was terrible. I took the tractor back and we replaced the new mounts with some used original mounts.
It's my understanding that the replacement mounts are made from a lot harder rubber compound. So, that is why the vibration is so severe. Has anyone else had this same experience?
I need to replace the mounts in the 1250. I want to use the best available parts and do it one time.
I guess I'm in the same boat as the original poster. Your help and advice would be appreciated.

[R Bedell]

They are nowhere to be found on the net. I have the upper rubber mounts. just not the bottom.

This was the original question. It has been answered. This thread has mushroomed into opinion and debate far from the original inquiry.

[bkw3614]

I agree with Mr. Bedell that the ISO mounts, installed correctly do their job, and do it well.

I bought a Cub Cadet 1250, my first, about 4 years ago. It looked good, ran good, and the P.O. is a person whos integrity is rare today. He told me it needed mounts, the modification, steering repair, and some other minor stuff. When I got it home, after the joy of the first Cub wore off, I took the thing apart and began to repair. I thought it was a nightmare, thus its name: "1250 Nightmare."

A wise cubber told me to keep working on it. I had to figure out how to adjust the Cub Cadet motor mounts to the engine and the tractor. Once I got the new Cub Cadet motor mounts adjusted properly, I have had a world of enjoyment with this tractor.

The genuine Cub Cadet ISO mount kits are not symmetrical. As Mr. Bedell says, Install them and adjust them properly, and they will work very well.

It seems to me that solid mounts will only transmit vibration, not dampen it.

Respectfully,

Brian Wittman

[Roy Najecki]

This thread got me wondering what type of ISO rubber mounts I have on my 1450. When I bought the 1450 five years ago before doing any work on it I bought a set of ISO rubber mounts figuring the ones on the 1450 were probably worn out. The ones I bought are cherry red and pretty hard. All eight are identical. A month later when I worked on the tractor installing a muffler crutch and repairing the air box I took a closer look at the ISO and it appears the previous owner had recently replaced the ISO rubber mounts with these black ones, so I never used the red ones. The tractor runs pretty steady so the black ones must be softer than these cherry red ones, and working. Much steadier than my 149's, that is the body doesn't rock side to side that much.

As to top or bottom ISO rubber being sold separately, that is true as one of our sponsors Cub Classics sells just the upper mounts at the bottom of page 2.

If the upper and lower rubber are supposed to be different I've only found one vendor with those, and that is CCSpecialties.org near the bottom of the clutch-driveline page.

Here is a question. Some vendors sell a ISO engine snubber with a threaded stem (part number IH-61510-C1). Anyone know where this goes as I don't think I have seen it in my 1450.

[finsruskw]

Those are the snubbers that go under the front ends of the cradle between it and the lower frame flange on a QL, one on each side, and get adjusted w/slotted flat washers so when the PTO load has a tendency pull the cradle down it will go only so far.
You can see the bolt that holds the eft one, I can see it in your 4th picture, just ahead of the ISO mount

Spacing spec's are .06" to .12" w/no load.
Add or remove shims as necessary to achieve this clearance.
Amazing what all you can find in the FSM's and FSM's
Best part is, it's all FREE, can't beat that!

[Roy Najecki]

Ahhhh, I see it now. Thanks for the pointer. It took a mirror to see them, and they look okay but will have to get a feeler gauge to check the clearance. These seem to be two parts not easy to get to and worthwhile replacing if you have to replace the ISO mounts.