Crank seals - Cometic OK or stock?

queen of spodes
Edited Date/Time 10/5/2014 1:11pm
Have some Cometic crank seals but am starting to second guess them. Should I use OEM or these OK?
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CamP
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CamP 9/30/2014 6:50pm
9/30/2014 6:50pm
I have never been disappointed by OEM seals or gasket.

Aftermarket seals and gaskets have disappointed me on several occasions.
slipdog
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slipdog 9/30/2014 7:35pm
9/30/2014 7:35pm
CamP wrote:
I have never been disappointed by OEM seals or gasket.

Aftermarket seals and gaskets have disappointed me on several occasions.
Yep!
E-man811
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E-man811 10/1/2014 6:12am
10/1/2014 6:12am
OEM all the way
queen of spodes 10/3/2014 4:45am
10/3/2014 4:45am
I should have said this is for a 89 model bike. The seals were only used on two model years of that vintage. Some folks on another forum said that, for bikes that old, OEM is not always smart because you'll be using 15 year old seals.. the advantage of OEM is lost. I'm hearing Cometic is the next best thing.

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CamP
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CamP 10/3/2014 7:24am
10/3/2014 7:24am
queen of spodes wrote:
I should have said this is for a 89 model bike. The seals were only used on two model years of that vintage. Some folks on...
I should have said this is for a 89 model bike. The seals were only used on two model years of that vintage. Some folks on another forum said that, for bikes that old, OEM is not always smart because you'll be using 15 year old seals.. the advantage of OEM is lost. I'm hearing Cometic is the next best thing.
I have the original crank seals in my 1982 RM250 and they still work perfectly.
Tracktor
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Tracktor 10/3/2014 2:07pm
10/3/2014 2:07pm
I doubt it really matters. There isn't a ton of factories building seals. It's not like Honda seals come from a Honda factory. I have matched up many an MX seal/bearing at an auto parts/bearing house and never had an issue................
xnationalwrench 10/5/2014 1:11pm
10/5/2014 1:11pm
Tracktor wrote:
I doubt it really matters. There isn't a ton of factories building seals. It's not like Honda seals come from a Honda factory. I have matched...
I doubt it really matters. There isn't a ton of factories building seals. It's not like Honda seals come from a Honda factory. I have matched up many an MX seal/bearing at an auto parts/bearing house and never had an issue................
seals are seals but you need to check on heat resistant (don't want it to melt) and how they hold up under cranking pressure, gas/oil and hi-revolution

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