Page 1 of 1
Ts250/1 crankshaft oil seal direction
Posted:
Sat Mar 19, 2016 7:03 amby Jamesk
Hi everyone. I'm currently rebuilding a ts250/1 motor. Iv just spueezed in the crankshaft oil seals. Iv pushed them in both with the lips facing inwards, but now I'm worrying myself that one should be facing out! Does it even matter? Im really not sure and my Haynes manual is not helpful at all. Can anybody tell me the good or bad news please? (Not sure how il get it out again easily if it is wrong!)
Thanks
Re: Ts250/1 crankshaft oil seal direction
Posted:
Sun Mar 27, 2016 11:22 amby Guesi
Bad news.
The one on the clutch side is with the open side showing outside towards the clutch .
Re: Ts250/1 crankshaft oil seal direction
Posted:
Mon Mar 28, 2016 3:06 amby arry_b
Lots of us have made that error, and happily ridden around for many thousands of miles. From what I've seen, it makes no difference.
Don't stress about it, and get on with riding your bike.
Re: Ts250/1 crankshaft oil seal direction
Posted:
Mon Mar 28, 2016 3:32 amby Guesi
I think that the guys from MZ had a reason to put the seal this way...
Re: Ts250/1 crankshaft oil seal direction
Posted:
Sat Apr 09, 2016 5:48 pmby CharlieCeng
The idea is that the higher pressure, though very small in this application, assists the sealing action. So the atmospheric pressure outside the crankcase, which is higher than the pressure inside, pushes the seal onto the crankshaft assisting the spring.
Re: Ts250/1 crankshaft oil seal direction
Posted:
Sun Apr 10, 2016 1:24 amby Guesi
I don´t think that thr pressure in the clutch area is higher than the pressure in the crankcase.On the contrary!
Re: Ts250/1 crankshaft oil seal direction
Posted:
Mon Apr 11, 2016 2:34 pmby therealche
And I take the middle option... sometimes it is higher, sometimes lower!