Kubota RTV 1100 head job - “extra” copper washers? Need a Kubota mechanic’s expertise.

[ScubaJonL]

I’m putting a new head on our 2009-2011 RTV1100. I ordered top end gasket kit (valve seals, gaskets for head,valve cover, manifolds, t-stat, etc).

One of the bags inside the kit has an o-ring (prob thermostat), 6 valve seals, and 3 copper washers like you’d use on fuel injection.

Coincidentally (?) the copper washers fit perfectly inside the valve seal and over the valve stem. My first thought was that they were to stop the seal from sucking out of place on the 3 intake valves. In fact I found two of them nestled inside two seals when I opened the bag. But the old seals didn’t have them. I can’t find any other connection where they’d fit.

Anyone know where they belong?

 

[azbinder]

Those copper gaskets go on the injectors. Nothing to do with the valve seals.

 

[ScubaJonL]

Those copper gaskets go on the injectors. Nothing to do with the valve seals.

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Any guess which connection they fit? Every connection I pulled had much bigger, flare-shaped metal on metal connection.

 

[azbinder]

They go under the injectors. Just drop them in the hole in the head and then screw the injector in.

 

[ScubaJonL]

Just to update in case anyone finds this useful - the top end kit for 2009-2011 RTV1100’s doesn’t include fuel system washers. The 3 copper washers turned out to be for rocker arms.

 

[thepumpguysc]

r u absolutely sure.??
U may be right but I find it a little wonky to put copper washers on a rotating/moving part..
I was on the injector band wagon too..
Hope it works out for you..

 

[azbinder]

Where on the rocker arms do these washers go? I've never put copper washers anywhere on the valve train of a Kubota engine that I remember.

 

[azbinder]

No copper washers shown/

Kubota RTV1100CR (Recreational model 2007 - early 2009) Parts Diagrams

RTV1100CR (Recreational model 2007 - early 2009) Parts Catalog Lookup. Buy Kubota Parts Online & Save!

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[ScubaJonL]

Where on the rocker arms do these washers go? I've never put copper washers anywhere on the valve train of a Kubota engine that I remember.

Update to the update: they go on top of the valve cover. Old ones were in the bag of rocker parts so I just assumed. My bad.

Definitely not on the fuel side though, as they fall through the injection port, and don’t match any line connections.