2 STROKE WORLD .net

The 2-Stroke Garage => Turning Wrenches => Topic started by: rded on July 06, 2023, 03:15:00 PM

Title: R5 RH Crank Seal
Post by: rded on July 06, 2023, 03:15:00 PM
So, I finally got to the bottom of my running issues on this R5.It seemed to be smoothed out but still didn't seem 100%.
I did a leak down (I know...Should have done it before anything) but I always think, oh they won't be bad.

The RH seal was leaking air all around. I ordered one from eBay (looked to be the soonest shipping one). This seal is so large in diameter it was a bitch to install. Then I go to fit the gear and the shaft is not pushing in. The inner seal is way too small. I tried to lube but to no avail.

What source has reliable close to stock fitting seals?
Title: Re: R5 RH Crank Seal
Post by: m in sc on July 06, 2023, 03:22:11 PM
https://yambits.co.uk/yr5-crank-oil-seal-rh-p-14803.html


look for other parts as well as shipping isnt bad but doesn't go up with small add ons. should be in your hands in a week or less.

john at economy used to carry r5 seals but i didnt see them. you can use an rd seal if you feel like taking the center rib off.
Title: Re: R5 RH Crank Seal
Post by: rded on July 06, 2023, 03:30:32 PM
Phuck, I just received an order from them dammit. Ordered on Monday 7-03 and had parts in my hands on Thursday 7-05. They're  amazingly expedient. Way better than most US vendors.

I must note that I hate when sellers have the shit part with a Yamaha part# label with it. I msg the seller, we'll see what happens.
Title: Re: R5 RH Crank Seal
Post by: rded on July 06, 2023, 03:38:23 PM
Nice I see that the RD seals are still available form Yamaha. Whats the best way to take the rib down? Grind off, or cut?
Title: Re: R5 RH Crank Seal
Post by: m in sc on July 06, 2023, 04:15:14 PM
honeslty, and this is def not recommended but does work, i usually let it spin on my finger against the grinding wheel until the rib is gone, gently. then blow it off with air. however, i would recommend a steady hand with an exacto if this makes you feel uneasy. and im one of the guys that uses yamabond on new seals.  :twocents:
Title: Re: R5 RH Crank Seal
Post by: rded on July 06, 2023, 04:48:32 PM
I think I will get the RD one. I am pretty good with my hands. I have a fresh tube of Yamabond also.
Steady hand with my die grinder should do it.
Title: Re: R5 RH Crank Seal
Post by: m in sc on July 06, 2023, 05:17:42 PM
id avoid a die grinder, real easy to cut a notch in it, but thats just my opinion. but, good luck w it. as a side note, i always order 2 sets of seals when i order them just incase something goes wrong on installation. got bit by that once, and now i always have a spare on hand.
Title: Re: R5 RH Crank Seal
Post by: rded on July 06, 2023, 05:21:46 PM
Good idea
Title: Re: R5 RH Crank Seal
Post by: soonerbillz on July 06, 2023, 05:36:57 PM
I ordered this kit from economycycle.com

https://www.economycycle.com/shop/yamaha-rd250350400r5ds6ds7-parts/engine-related/gasketsseals-engine/mocom-engine-oil-seal-kit-for-yamaha-r5ds7/
Title: Re: R5 RH Crank Seal
Post by: m in sc on July 06, 2023, 06:35:34 PM
i didnt see that. thats (one of) the ones ive ordered in the past.
Title: Re: R5 RH Crank Seal
Post by: rded on July 06, 2023, 06:57:49 PM
Good option, thanks

Does John send the parts quickly? I am an impatient MF

Although I may just order from my local dealer.  I also need crank seals for my AT1.
Title: Re: R5 RH Crank Seal
Post by: soonerbillz on July 06, 2023, 07:06:50 PM
Quote from: rded on July 06, 2023, 06:57:49 PMGood option, thanks

Does John send the parts quickly? I am an impatient MF

Although I may just order from my local dealer.  I also need crank seals for my AT1.


I ordered 57 parts in bulk last Friday... they shipped it Monday it showed up Yesterday
Fast enough I'd say.
Title: Re: R5 RH Crank Seal
Post by: rded on July 06, 2023, 08:22:35 PM
Has anyone come across R5 crank seals that do not fit? The RH one in particular. The one I have is too large and the ID is too small for the gear to fit.
Title: Re: R5 RH Crank Seal
Post by: m in sc on July 07, 2023, 10:16:17 AM
never
Title: Re: R5 RH Crank Seal
Post by: rded on July 07, 2023, 02:04:12 PM
I haven't done a lot of crank seals so I just assumed that I would have received the correct one. The OD was close but would not just push in a bit. I now have the size of that seal 40x62x10 and will always check from now on.

Title: Re: R5 RH Crank Seal
Post by: Economy Cycle John on July 07, 2023, 03:31:46 PM
Quote from: rded on July 06, 2023, 08:22:35 PMHas anyone come across R5 crank seals that do not fit? The LH one in particular. The one I have is too large and the ID is too small for the gear to fit.

LH side is ignition side (no gear)

Both the RD OEM and R5 aftermarket LH crankseals are marked
20-40-10 (ID,OD,W)
Both install numbers out

(https://lh3.googleusercontent.com/pw/AIL4fc8I2T2qgDAnOiciSk8J1P_tXGAcNbgkBqe0DhMJl15ikzbQCP3EwpokoYhXkkLMKDdwEEyl_IpUIIk9ZDwJVWi9PJbQqkuqblN24dhmKiE3TRk1szGpQby0fuxG-XaJzR5HNQWG2HT3IIIJ7zpk13Is8r-vI0iO5sCic-u7ZI4nA8mMFAJ4DQ3s6lOj8udjm0lN1Dhi32XlPswWI3XLesHx4CHBdHIAUQO4z3niYvg_R3uS2N8sgcd61N2Red7muACyeisxrzeVTC8sR42dCUNB9L5RXIrUlkfSB2VXel7OAiBnOpFOrsqxMDaPfKgJ-q6h6P9dkryYixmYiCi6c5dTKjd2Y1u62F9_MkllyoStF7uVfzsfmHwp7lNKHmdOGAyjQbYk_NWTvtMjiAGKUDCKpFLU2USP_xskRYbcxfbgmgdaxS2RXmdaR6Gn-PFjIQ8-70l98tabi5q1KsWpLQPNT-1bB0QEqSPpDqXht1Fj9GQggmetlyG9ITNtvQtMQVhG8vqfoUVkP6BuRUlXVvm3dI1i32CsuX32iSIbekZOghQO87szAfOC_aOPflSLK3V0Wqgx1Oad7rBLFIdhDu60z46_rFnrziHvsPe7j5be0TLPLid0KHi6RjIzu39z-QiAZlPDIzWEnSXmMHw_QvFqQxv9Gh4bLFq0FMZ_7lLeNR5mu5VypBsnR3DZvEuVUUAgnlBoOX2hW5QfeUSS2l8pnhiCuSxjpehXLZGDQqtmij3-qepgmuaDv5bnpavJquLwpX3n2B2y2DWpX7JLX0zwydrGvjzrar29_ApwZ3aB0knxNAaMdfjlDVaXUy0hjAOQBoQqkeFx8Hr26PhT5EXzKJTJ60_2l9KcBipFA4cNX4cIsoSJe3jLjaaT0o3xIVUce3zdxgr5U-hd9eEn3s7bP6z9DtDpPaNY5DN62gDCxOexjxbgwpoeVq0=w674-h899-s-no?authuser=1)



Title: Re: R5 RH Crank Seal
Post by: Economy Cycle John on July 07, 2023, 05:07:48 PM
Both the RD OEM and R5 aftermarket RH crank seals are marked
40-62-10 (ID,OD,W)

Both install numbers in with the castleassions against the bearing

(https://lh3.googleusercontent.com/pw/AIL4fc9RENWIkClcmU3EEUQCnX-rCA2Bw6WHHehdOR4tVMI8-udqbX1ZNvo2fCM2d-96H6flK6b_JsjnKGIXlYRp40_sw-w7wuTGBC8ozx05FDE5p0dfPF3ESUJwMs3GAJDxiFQaqTbL9iIKh979Q0jbXwMKqeaHj-MMjPcv6bqDpGDjApL50u5eQ7rLVI_CSNCJkWbgV5QspEDfN6XhyQysjD_jz7FggNDzXGX5MkwlgCr5WoNc4igGIKQLCL3MrhL3KUjtPPWu5lbC-bh0flCSInYoquoH2N2-mI9GKrpBOfV1j21e4RfPDQL6psk2EQJcm8Fr89MH9rEghAzAMveB4hZTQOvptgy0tF-lfLj46QTn28i-gJJbqc7bbjcJEaV54IjyRdeGyLP3LeycrMXBBet9ho78mETzDVIqq3ikwdO4rQsLXa-6QGp1N45yhUU-g2LX-qbK50uE0-tvkPuP-nYC6U-cWSubSlzkMtpuw-H-NqCK_33ZZdGhp8lkc8Sx8BgbbK81iTBb-6VFYNpaQKXfJIlucp7Y3bvr76zN4mU9ikabK8XEeUxOAF_iIf66AFbVOhBwKh_xU3uZxnG-iMAPClI1vaKFsg_7DDtSs2ibIPQIJN7vrgpo8wdqulEtMU187NZ1oogo5h5svXfoEBXnABzF2XzLZIzRFqTK9xtysuZ20cTWagE0Ms0GDQ2_y9WJYGB8MMHWjf8G83ts0e68mcpHm9cgCn6BQ9qkvlxZPK-EncPCpW9OWqkyUKaN5IMben9vtcqjxCIncw6zb8OBPeNDyknWTqOGD5oAPRHvMGDw1ol4NBL8zxoY7AdF8prUSnt1q6ErjmNetiwFff5YoimhbfvXF6I9zTmMxokkdpeMb51R_NPFsWOFTt-fEvRgbmCjK5zE8rjIjQJu8dPJEpQ_P5AnZIBQeLI7-GZeDvoiDRHtitI9BZM=w674-h899-s-no?authuser=1)

(https://lh3.googleusercontent.com/pw/AIL4fc_oZzpNYhxLkAyGsClvF4mzNtLilcXunXhyxpwNxafnq3aTvD7pUdPNRy54xb5m1dpnbp7fym9Ya-NHYEy2r9BbWQa9TvQAAUhtrRR6drVpM9ST9Eg75fEJmaxupceCu6dUArr1PXLqMgX0f4ZDrIXAufGGPD7bv1u7S9FHmYllwHqBS-_82M344-3rv4jrhMayY19jDu2JqsaADoB28NPgSQLyt1b16EjsN1K4Fuenekk3RQoGPXD9QGTv5YIZsF7pY6jtnbOhxtupY5e9_JA3CLJjpXTbwXPPfjNeRDArEUO8ELrY_sR2SXlkHrLBMU0B5eT1Qqo-p2ncAU64Jnfk7sA_36U5M6AU_a7pgQ4x7PZ2aAEz7OOuFfKpZZ6pchVBOFU_Y2xEegKauN-GirdJok01EzlD_zvo82_YEjrw7BYSYvsPhRwgYQPZq4Ii47WZsswpJStDIUhC6oHFUBFbGBJ9dbZp7cSfwggYjUwpIOxyGnIa_FZA-LNMCUwU8O3CzQFNz1a_VkN0_rme7l1d6rYiFNS5MkrcvRJzI9wqyvD__3c3vbqbrqgMRiRCzW2Hj2HQcjsUA0GW-MaL_9Op-j3_b4UDVgTswS6eQpIyWlwT8BVdNQPoOXgSTSvDC3XxcVreXRwGYN22w-3ac4ewttQ5vT5g53dxxtzo9Xk19TTwTFVusqclrYj42XM0kICiv76lRzKKfXRH81kNKvaO06EE-CU1p0KFDIVc5QfIo5bwx6_5hbBrE72ttgax28QdxYh0IQl1ibAeUvINyqFRsDHOfBpiAzRJ40tQV9ScIK0oTnrMKpE4JlU8Qd7CwW7Awv_ESf4PfDlJjqxGxNi837IY0Q-U6VlefngpEJ8jDfSEl7MrHrtiDwxFBcFyGeBqFymifsDqEmng1ChXjbMqjw9epWiaomxEib5jC8P--smO2iKrAp_dcF4=w674-h899-s-no?authuser=1)


Title: Re: R5 RH Crank Seal
Post by: Economy Cycle John on July 07, 2023, 05:41:17 PM
Keep in mind they're rubber seals and there will be some stiction on both sides. Might take a little push when installingon on the crank and gear. You can lube with a little oil if needed, but I've done it many times dry as with all the RD/R5 engine seals. Do not use liquid gasket or yamahabond on them.  :twocents:
Title: Re: R5 RH Crank Seal
Post by: rded on July 07, 2023, 07:10:39 PM
Correct. I had my sides incorrect. I meant RH side. :cheers:
Title: Re: R5 RH Crank Seal
Post by: rded on July 08, 2023, 01:34:51 PM
The seal I received from the seller was 62  38  10. Thats why it was impossible to install the gear that is 40mm. I assumed that I would receive the correct part.
Title: Re: R5 RH Crank Seal
Post by: Economy Cycle John on July 08, 2023, 01:44:31 PM
hey mods, for some reason the pictures I posted disappeared, they were hosted links from my google drive
Title: Re: R5 RH Crank Seal
Post by: m in sc on July 08, 2023, 01:53:13 PM
I see them

:umm: