Author Topic: Crank seals  (Read 1279 times)

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Offline Freakshow

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Crank seals
« on: August 10, 2011, 12:42:11 pm »
Any one got a heads up on these cranks seals, they must also be in another yamaha model but its got me stuffed as they are not the nromal 30/62/10 style from the Dt , mx etc

im sure it was a #450 motor DT3 but the crank seals are smaller than all the other motors i have from that time even another #450 stamped donk

the seals i need are 30-55-10   and i think the other was larger likek 30 -70- 10. i manage to buy 2 off the shelf at the bearing place so its a normal size other than theses ones i got are 7mm and dont have the same red coating on the crank side. So i dont think they would take over 5 psi on the lips

surely its the same as another yammmy model, does any one recognise the sizes ?  mine had air gap nodules on the outer face to so they might mic out to 12mm but you get the idea
« Last Edit: August 10, 2011, 12:44:04 pm by Freakshow »
74 Yamaha YZ's - 75 Yamaha YZ's
74 Yamaha  flattracker's
70  Jawa 2 valve speedway's

For sale -  PRE 75 Yamaha MX stuff, frame, motors and parts also some YAM DT1,2,A and Suzi TS bikes and stuff

Offline David Lahey

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Re: Crank seals
« Reply #1 on: August 10, 2011, 12:51:17 pm »
Magneto side crank seal on TY250 is 30-55-10
previous pseudonym feetupfun

Offline Freakshow

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Re: Crank seals
« Reply #2 on: August 10, 2011, 12:53:30 pm »
Sweet.  knew there was some matches.  just seemed odd that this motor is diffant to all the others.

whats the other side do you know ?
74 Yamaha YZ's - 75 Yamaha YZ's
74 Yamaha  flattracker's
70  Jawa 2 valve speedway's

For sale -  PRE 75 Yamaha MX stuff, frame, motors and parts also some YAM DT1,2,A and Suzi TS bikes and stuff

Offline David Lahey

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Re: Crank seals
« Reply #3 on: August 10, 2011, 02:31:28 pm »
Primary drive side TY250 is 40-55-10
previous pseudonym feetupfun