Steel breather valves?
#1
09-22-2012, 12:09 AM
#3
09-22-2012, 12:33 AM
DeJavu,
Thanks for the quick reply! My 97 RK has 27K on it. I don't know much about the maintenance history of the bike, as I just picked it up this past April. I am sure the oem plastic breather valves are in need of replacement. So; I figure I might as well go with the Jims or S&S steel valves.
Thanks for the quick reply! My 97 RK has 27K on it. I don't know much about the maintenance history of the bike, as I just picked it up this past April. I am sure the oem plastic breather valves are in need of replacement. So; I figure I might as well go with the Jims or S&S steel valves.
#6
09-22-2012, 08:15 AM
@30K my plastic one had some wear on it but it and the case looked real good, I stayed with the plastic. I figure if it lasted 30K++ the first time I was good for another 30 and I think that the metal one would wear the cases quicker since it was harder metal than the case. I have not heard of a plastic one going bad and causing problems, I have heard of one that picked up bits of metal from another issue, they got imbeded in the plastic and scored the case really bad. I also heard of a metal one that was not shimmed correctly causing issues.
As much as I don't like plastic, I don't see a reason for a metal one in a street engine.
Ds
As much as I don't like plastic, I don't see a reason for a metal one in a street engine.
Ds
#7
09-22-2012, 08:32 AM
@30K my plastic one had some wear on it but it and the case looked real good, I stayed with the plastic. I figure if it lasted 30K++ the first time I was good for another 30 and I think that the metal one would wear the cases quicker since it was harder metal than the case. I have not heard of a plastic one going bad and causing problems, I have heard of one that picked up bits of metal from another issue, they got imbeded in the plastic and scored the case really bad. I also heard of a metal one that was not shimmed correctly causing issues.
As much as I don't like plastic, I don't see a reason for a metal one in a street engine.
Ds
As much as I don't like plastic, I don't see a reason for a metal one in a street engine.
Ds
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#8
09-22-2012, 08:46 AM
The plastic ones were designed to wear to a point. If by some chance something nasty got in there the theory was it would imbed in the plastic and not gouge out the opening lik it would if it were caught between two pieces of metal. We've been using the reed types with good luck so far.
John
John
#9
09-22-2012, 01:56 PM
Outstanding HDF Member
@30K my plastic one had some wear on it but it and the case looked real good, I stayed with the plastic. I figure if it lasted 30K++ the first time I was good for another 30 and I think that the metal one would wear the cases quicker since it was harder metal than the case. I have not heard of a plastic one going bad and causing problems, I have heard of one that picked up bits of metal from another issue, they got imbeded in the plastic and scored the case really bad. I also heard of a metal one that was not shimmed correctly causing issues.
As much as I don't like plastic, I don't see a reason for a metal one in a street engine.
Ds
As much as I don't like plastic, I don't see a reason for a metal one in a street engine.
Ds
#10
09-22-2012, 07:27 PM
