Ultima 127 Main seal

Classic Beast

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Ultima 127 Main seal

« on: July 29, 2010, 12:50:48 PM »

I am having a problem with my 127 that I was hoping someone could help me out with. Ultima ships these motors with the main seal set up for an open belt so I put in a new seal with the lip towards the primary it was ok for a while but soon I was gaining volume in My oil tank. I put in a new seal again and still pulling all the oil out of the primary, anyone run into this problem with an Ultima engine?? I run ATF in the primary as I have an S&S clutch. Having ATF mixed with Motor oil is not a good thing.


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95 FLSTN
127 Ultima
DD6 Baker
3 X PM 6 piston calipers
S&S Clutch
RB Black Hole
Thunderstar mags

johnsachs

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Re: Ultima 127 Main seal

« Reply #1 on: July 29, 2010, 05:06:22 PM »

I usually see it the other way around.Primary gaining oil.
Be sure the motor is vented well.Vent to atmosphere.I run a line out of each head,and use the back of the case as well.The 4 1/4" pistons build a lot of pressure.
John Wink


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Classic Beast

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Gender: Male

Posts: 347

Location: Kelowna BC.
Member since: 07/31/08

Re: Ultima 127 Main seal

« Reply #2 on: July 31, 2010, 11:24:40 AM »

I opened the vent in the cases and it seems better, no mist coming out any of the vent lines just air so thats good.


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95 FLSTN
127 Ultima
DD6 Baker
3 X PM 6 piston calipers
S&S Clutch
RB Black Hole
Thunderstar mags

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