IMS - 2rs + freeze plug

[algiorda]

Do we really need another thread on this?

Just buy the IMS Solution and be done with it.

[Silber]

Originally Posted by algiorda

Do we really need another thread on this?

Just buy the IMS Solution and be done with it.

Sorry, that is so expensive they won't even tell you how much it costs. Not going to spend that kind of money on an engine with 114k miles on it.

If you don't want to read my thread, just pass it by.

regards,

Silber

[derfo]

Originally Posted by Silber

Sorry, that is so expensive they won't even tell you how much it costs. Not going to spend that kind of money on an engine with 114k miles on it.

If you don't want to read my thread, just pass it by.

regards,

Silber

Hello Silber
I don't mind reading these type of thread's. I just had a thought about the grease in the bearing, would it not wash out anyway with the heat down there. I wouldn't have thought the grease would have been in there for long, unless it was some type of grease I dont know about. Just a thought.

[Silber]

Originally Posted by derfo

Hello Silber
I don't mind reading these type of thread's. I just had a thought about the grease in the bearing, would it not wash out anyway with the heat down there. I wouldn't have thought the grease would have been in there for long, unless it was some type of grease I dont know about. Just a thought.

The seal is supposed to keep the grease in and other stuff out. Even heated liquefied grease should stay in there to some extent. I just wonder why when these are taken apart there is no grease, only oil.

It seems like there has to be some factor other than simple heat that would remove all the grease and substitute oil. Air expands and contracts with heat, this creates pressure in a sealed system, or movement of fluids/gasses in a system with a leak. I think the bearing seals are that leak and the action of the air pulls oil through the bearing over and over washing the grease completely away. Remove the air reservoir and (hopefully) the problem is solved.

I could well be wrong, but most analysis of the IMS looks at the grease washout as a given, and tries to solve the problem from there by throwing fancy bearings at it. I want to go back one step and solve the grease washout problem so the fancy bearing is not needed.

regards,

Silber

[derfo]

Originally Posted by Silber

The seal is supposed to keep the grease in and other stuff out. Even heated liquefied grease should stay in there to some extent. I just wonder why when these are taken apart there is no grease, only oil.

It seems like there has to be some factor other than simple heat that would remove all the grease and substitute oil. Air expands and contracts with heat, this creates pressure in a sealed system, or movement of fluids/gasses in a system with a leak. I think the bearing seals are that leak and the action of the air pulls oil through the bearing over and over washing the grease completely away. Remove the air reservoir and (hopefully) the problem is solved.

I could well be wrong, but most analysis of the IMS looks at the grease washout as a given, and tries to solve the problem from there by throwing fancy bearings at it. I want to go back one step and solve the grease washout problem so the fancy bearing is not needed.

regards,

Silber

Hello Silber
I don't think you can remove the air reservoir from a bearing. They are never fully packed with grease, for a number of reasons.
If you look to the other end of the IMS shaft what do you see, a simple plain bearing. Never any problems at that end. Personally I think a plain bearing is the way to go, oil fed of course. I know as well as most there is one on the market
but wouldn't be a big deal for an engineer with a lathe to make one.

[Silber]

Originally Posted by derfo

Hello Silber
I don't think you can remove the air reservoir from a bearing. They are never fully packed with grease,.

By air reservoir i meant all the air in the ims tube, it is acting as a reservoir of air that sucks oil through the bearing, i believe.

Regards,

Silber

[Smallblock454]

Originally Posted by Silber

The seal is supposed to keep the grease in and other stuff out. Even heated liquefied grease should stay in there to some extent. I just wonder why when these are taken apart there is no grease, only oil.

It seems like there has to be some factor other than simple heat that would remove all the grease and substitute oil. Air expands and contracts with heat, this creates pressure in a sealed system, or movement of fluids/gasses in a system with a leak. I think the bearing seals are that leak and the action of the air pulls oil through the bearing over and over washing the grease completely away. Remove the air reservoir and (hopefully) the problem is solved.

I could well be wrong, but most analysis of the IMS looks at the grease washout as a given, and tries to solve the problem from there by throwing fancy bearings at it. I want to go back one step and solve the grease washout problem so the fancy bearing is not needed.

regards,

Silber

The grease is washed out.

If you don't understand why read the SKF brochure i've linked in the other thread. Especially the part with the sealings, contamination, lifetime and so on. OK over all it's 300 pages, but than you'll understand bearings a little more.

The IMS tubes are different in detail, because the used bearings are different. Some have circlip grooves, some not. Also some are for 3 chain and some are for 5 chain engines.

Regards, Markus

[JFP in PA]

Originally Posted by Smallblock454

The grease is washed out.

If you don't understand why read the SKF brochure i've linked in the other thread. Especially the part with the sealings, contamination, lifetime and so on. OK over all it's 300 pages, but than you'll understand bearings a little more.

The IMS tubes are different in detail, because the used bearings are different. Some have circlip grooves, some not. Also some are for 3 chain and some are for 5 chain engines.

Regards, Markus

Markus, all of the tubes have clip groves cut in them, just in different places and of different sizes depending upon which style bearing is used.

[Silber]

Originally Posted by Smallblock454

The grease is washed out.
The IMS tubes are different in detail, because the used bearings are different. Some have circlip grooves, some not. Also some are for 3 chain and some are for 5 chain engines.

I am just going to test the freeze plug, so will never install a bearing or chain, will never go in an engine. I believe the tube dimensions are common to all styles of shaft.

regards,

Silber