CAN I USE THIS OIL SEAL?

[v8-914]

I recently bought a engine gasket set and it came with these seals. They don't have the raised bead around the outside.
I tried re-ordering them from Mike's but they came in the same way.
Does anybody have any experience with them? Can they be used for Counter Shaft and Crank seals?

 

[Its been a long time]

I think I would be more concerned that the seal on the left has a clear direction arrow. The other doesn't. I would be asking myself why that is.

 

[Jim]

The arrow does indeed make it a directional seal. See the little angled ribs inside the inner lip? Those are there to direct oil back to the inside of the seal, away from the outer lip. You'll always want to follow that arrow direction for rotation or you'll risk leaking oil.

As far as the rib around the edge, just about all aftermarket seals omit this rib. The rib sit's in a notch in the case halves. It's extremely hard/impossible to fit those without disassembling the cases. for replacement seals, you want the ones without the outer raised rib.

EDIT: some aftermarkets come with the ribs... but they're much smaller than the OEM's, for the reason I stated. They can be a bitch too, but they're doable.

 

[v8-914]

Great !! that is exactly the information that I needed to hear. The arrows are a non-issue as they will only fit one way. Also, I checked the rotation to be sure.
Oh, one more thing. The new seals do not have the arrows, only the original seals.

 

[toglhot]

The raised bead around the outside is nothing as the lip is still supported by the outer section. Why the original has a direction arrow is anybody's guess, for a seal that doesn't make sense. Bottom line though: If the seals you bought were for an XS650, then they are for an XS650.

 

[v8-914]

Thx guys!! You all have been a big help...

 

[JammitJames]

Hey @Its been a long time @Jim nice to see you guys helping out everyone here!
So I’m wondering if this gap is okay? I haven’t put the halves back together yet. The bearing pins are locked in. I was also wondering if I should use some lock tite or gasket maker on seal?

 

[AUTOMAN]

Must be SD seals! double lipped.
Cheap china rubber is always suspect also.

 

[Jim]

It's a 25-40-9 double lipped... so the numbers say it's correct, even if it doesn't look right.
The seal is touching the forward edge of the case half.... tell us if the rear edge touches also? Pics please.

 

[Jim]

And pull the seal back off and shoot a pic of the inside of the seal so we can verify it is in fact double lipped.

 

[JammitJames]

Lemme know if you need more…

 

[JammitJames]

The second picture shows a bit better of the gap underneath that I’m worried about.

 

[Jim]

OK, so... we normally see an SD seal there. Sd is double lipped.
Yours however, is a TC. The TC is also a double lipped seal, which we can verify because we can see both lips in your pic. I looked it up and the two should be interchangeable for this application.

The seal edge is touching the case both front and back, so that tells us the diameter ( 40mm ) is correct... at least it appears that way from the pics.

Id say send it. Give us some more pics when you get the case halves mated... see how it looks then?

 

[Jim]

I was also wondering if I should use some lock tite or gasket maker on seal?

I always put a little gasket sealer on my seals.

Also... make sure the seal is flush with the outside of hole after it's installed.

 

[Jim]

One last thing, double and triple check the alignment pins on the crank bearings are properly seated. If one's not, the crank (and seal) will sit up slightly. And if that happens, there's a real risk of damaging the cases and/or crank bearings.

After the cases are mated, the crank should spin freely. Check it continuously as you torque the case studs down.

 

[Jim]

The more I look, the more I see...

The bearing in the pic IS NOT SEATED. See the lines the red arrow is pointing to? Those are there as guides to tell you when the bearing is properly seated.

 

[Jan_P]

Yes Sir I also wondered about the gap at the low side .Even when the seal is on the Axle .

 

[Its been a long time]

The more I look, the more I see...

The bearing in the pic IS NOT SEATED. See the lines the red arrow is pointing to? Those are there as guides to tell you when the bearing is properly seated.

View attachment 373989

Well spotted. And that's a very good reason why the seal isn't seated in that picture either.

 

[JammitJames]

The more I look, the more I see...

The bearing in the pic IS NOT SEATED. See the lines the red arrow is pointing to? Those are there as guides to tell you when the bearing is properly seated.

View attachment 373989

Got it! The weird thing is the lines aren’t like the others. So I had them both as flush as I could get. But for some reason there are not correct. They must have not checked them for the level and just drilled the holes. I promise it’s seated now Thank you so much everyone!
And @Jim i will. Thank you

 

[JammitJames]

The more I look, the more I see...

The bearing in the pic IS NOT SEATED. See the lines the red arrow is pointing to? Those are there as guides to tell you when the bearing is properly seated.

View attachment 373989

Thank you for your help!