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I try to catch up every few days. I like the angled spacer on the inner race. It does seem that would allow more oil access. Question, we all know the outer race move with the shaft and likely the pull from the center stud prevents the inner race from spinning thus it is stationary. I think the torque pull from the stud is 7flb, would an angled spacer put added pressure on the inner race and would it matter you think?
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I Hope this helped... :) 24hrs left, then back to high speed run. |
I cut the idle test short so I could cut out the IMS cover for a seal.
So the high speed test restart is at 1:30pm pst. @ 3000rpm. oil sample was taken and seal is still in good ciondition. As I was cutting the cover..... I'm thinking the bearing should be in the cover w/ a 25mm shaft extending from the IMS into the cover. Anyways something to think about. Here is what I cut today for the next mock up test..... http://forums.pelicanparts.com/uploa...1332883600.jpg http://forums.pelicanparts.com/uploa...1332883617.jpg |
9am and all is well,,,,, well almost... after spending most of the night drawing, I think moving the bearing to outside the case is the best way to go. That way, there isn't a pivot point where the chain pulls on the shaft, causing the angled pressure at the inner race of the bearing. Also, a regular roller bearing in the IMS cover can be used and is plenty strong to handle the loads of the chains.
I've drawn out an extention shaft that can be tapped into the double row IMS to make it a rigid shaft extending to outside the case. I don't have a single row IMS to take some deminsions so one for those will have to wait. Once I figure the exact bearing size I will use, if gease or oil, ( I can still use the shaft as an oil tank for the bearing) I will start cutting out the shaft which means shutting down this test. I think this may be the solution to end the IMS issue. Onward.... |
Ok, I cut out a IMS housing I received in the mail today, Thanks Showbiz! SmileWavy Next is to press a 50mm OD tubing and Tig into place and bore it out for bearing fitment and snap rings.
The shaft extension, will have an interference fit with a spriol lock ring and will extend down the tube of the IMS 25mm + 20mm in the bearing space. It should be easy to install just like the original bearing. http://forums.pelicanparts.com/uploa...1332982850.jpg http://forums.pelicanparts.com/uploa...1332982875.jpg Onward......SmileWavy |
I am still running the seal test, the only difference is it will only be from 7pm to 7am, 12hrs a day, that way I can use the lathe during the day.
So weds was 19 hrs. Thurs was 12 hrs. 31hrs x 132mph = 4,092mi. + 12,504 from the previous run = 16,596mi. and no leaks. Today should be a productive day, and will try to get some pics up. |
update, 12 hrs. for another 4,092mi on the seal.
Did my pulley change over and broke my drive belt, so I have to go pick up some spares. I will get some pics up this evening of the pieces made sofar. The way I have it set up, It can use grease or oil filled, with a tube(grease) or 2 tubes (for oil) to outside the case where you can change the oil when you change the engine oil or add grease every xxxx mi. I drew up a level circuit so if the oil level gets low it throws a light, (look up industrial battery water level indicators as it is modeled after that idea) so if you loose a seal you get a warning, more on this later. |
I had to order the belt so I will be down till monday. I was hoping to have some of the pieces assembled.
I drew up a pump that will be cut into the shaft, a screw pump that will flood the bearing. The grease version of course won't have a pump. The pics show the mock up of the oil lines out of the bearing housing, which will lead to a 16oz. oil tank. Who knows maybe even a heat exchanger :p The grease version will have 1 line coming out with a zerk to add grease in the bearing housing. http://forums.pelicanparts.com/uploa...1333158542.jpg http://forums.pelicanparts.com/uploa...1333158561.jpg |
I am in the process of putting the crank back into the test case and flywheel on to make sure all my clearance calc's are correct. Should be fine as I was conservative with my numbers.
I was asked, "why not just pump engine oil to lube the bearing?" I already have a design that would pump it out of the sump to the bearing and flood the bearing and drain out a couple holes in the seal back into the crankcase. But what fun is that? :p With the main shaft with the screw pump on the end, it can be plumbed anywhere one desires. Anyways, Here is a pic of the oil tank, the sight glass will not be used as it will have a level sensor. The return line will be bigger than the suction line. http://forums.pelicanparts.com/uploa...1333246978.jpg Onward,,, SmileWavy |
Ok, here is what will oil the bearing..... very simple, and filtered oil. This set up will also with slight modification to a stock or LNE IMS housing, will oil the LNE bearing with a spray of clean oil. A heat exchanger could be put inbetween the filter and bearing housing if one needed it....:p
I can't show you whats underneath the needle in the bottom of the filter housing...just yet. But it's very simple, and if anything breaks off it will not travel into the oil system. It works as originally intended if the filter clogs. (Yes, tested) and doesn't let dirty oil pass into the system in the meantime. When you change your oil, just disconnect the hose, drain, and unscrew the filter housing. Don't mind the brass fittings I have ordered some SS pieces that will be used on the final assembly. The tubing is good to 500F+ and 250psi @ 75F. and 150psi @ 220F http://forums.pelicanparts.com/uploa...1333309138.jpg http://forums.pelicanparts.com/uploa...1333309156.jpg http://forums.pelicanparts.com/uploa...1333309173.jpg Next week when my lathe is up I will finish the shaft and housing. Onward....SmileWavy |
Here is the injector hole for an open bearing, pretty simple. Just need to figure out what jet size to squirt the bearing with.
http://forums.pelicanparts.com/uploa...1333338620.jpg http://forums.pelicanparts.com/uploa...1333338636.jpg |
Not sure if it's related but a good read if you understand it
http://www.miics.net/archive/getfile.php?file=83 |
Thanks for the link Dewolf SmileWavy
Here is the housing, with the a test bearing installed. I have some clean up and need to cut the snap ring grooves. I need to move the bearing to the edge to inside the case 4mm closer to the shaft and make a back cover. I am going to leave the face of the bearing open to the case so the oil will run out back into the case (no seal needed). http://forums.pelicanparts.com/uploa...1333428449.jpg http://forums.pelicanparts.com/uploa...1333428476.jpg I don't think I need to continue the seal test as direction has changed and I won't be using the seal. |
Do you think a company like Timkin would/could come up with a coated bearing that would hold out much longer than a non-coated bearing?
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Here are some pics of inside the engine, You almost need a crane to get crank in... This is going to take another turn as I found an easier way to do the bearing housing, and will make a big difference in support.
http://forums.pelicanparts.com/uploa...1333514496.jpg http://forums.pelicanparts.com/uploa...1333514522.jpg http://forums.pelicanparts.com/uploa...1333514558.jpg |
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Have you seen or heard of the Microblue bearing coating?
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WOW!
What's going on and what have I missed? Cool stuff! Feelyx, Just replaced my IMS with the PP kit. My old one is a double row and seems to be in perfect shape. :mad: Heard you were dissecting old ones. Let me know if you need it. PM me your add and I'll ship it out. Would like to know how good it is once you break it apart though. |
hi fleex.
that is the first time i get to see the IMS as it is placed inside the block. just out of curiosity, we all know the shaft is held by our beloved bearing on one side, what is holding it on the other? is it just laying inside the case or there is another bearing at the oil pump case? (keep the good job it is very interesting) |
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