Z1OwnersClub GB

The wiseco 1075 kit comes with a copper head gasket.
What does anyone use to fill the groove for the o ring on the barrells?
Do you use any sealant on the gasket itself?

has the head been piano wired.

I'm glad you asked that question as I've just priced the rubber o ring at £40. I would have thought a one piece performance gasket would be a cheaper option than the 2 piece and the o ring. Where's Steve Debben when you need him ?

Pasc, I think Romeo is getting ready for anuvver excursion to the POD this weekend.....

Steve, I don't know what Hillbilly means by "piano-wired". I presume it's where circular grooves are machined around the liners and have wire fitted in them. I have seen something similar on 1300 cc blocks.

If that is the process, then I would hardly think it would be necessary on such a relatively low increase in capacity (1075) unless it is for drag racing or racing in general. I think the groves around the cam chain tunnel are usually siliconed and cut flat witrh a blade. The copper gasket is then torqued down without any added gasket cement/ goo/ sealant.

RegardZ.

When using a one piece copper gasket make sure you retorqe the head after a short break in period. Also here is a good tip that helps prevent leaks
http://www.redlinecycle.com/Blocks.html

Ok This is me being stupid and panicing after reading a thread on the KZ rider website,
I actually have a fibre gasket apparently the copper gasket is for drag racing( so you can reuse it), and you do need to piano wire or o ring the barrells which means cutting a groove and putting some wire in it for the copper gasket to crush down on.
wiseco say I do not need to fill the O ring groove but others say run some silicone in it so I think i will do that..
Thanks for the advice.

I am back from the Pod, Hello Pasc, Steve R, yes do away with that good for oil leaks expensive O ring and fit the 1 peice Cometic CFM20 head gasket instead, better gasket, less chance of the cam tunnel weap at the front of the block and save yourself money fill the groove with a high temp rtv sealant like the Loctite / Permatex Ultra Copper.

Revisiting an old thread. Have the 1075 kit in my bike, there were leaks from around the head. I have the copper gasket (72mm) and as you can see there was blow out on No.3, or it appears that way.

I hear of this thing where the cylinder should be piano wired, I've never seen this and from what I can tell mine hasn't had this done.

[img][img]http://i966.photobucket.com/albums/ae144/mnico/Mobile%20Uploads/image-1.jpg[/img]

Now the old girl wont be going down the strip and it doesn't seem excessive upsizing so I was thinking of going the one piece fibre gasket & filling in the O Ring groove.

Thoughts [/img]

Your barrels have NOT been wired Copper needs to be annealed before reusing,,, heat to cherry red & let it cool.

With the copper gasket sealant should be used (2 x different types) to:

A: Seal the copper gasket to the mating surfaces (head & barrels)
B: RTV hi-temp (or similar) sealant in the big O-ring (cam tunnel) groove

Personally I'd get a Cometic fibre/metal gasket and ditch the copper thing.

Pigford wrote:Your barrels have NOT been wired Copper needs to be annealed before reusing,,, heat to cherry red & let it cool.

With the copper gasket sealant should be used (2 x different types) to:

A: Seal the copper gasket to the mating surfaces (head & barrels)
B: RTV hi-temp (or similar) sealant in the big O-ring (cam tunnel) groove

Personally I'd get a Cometic fibre/metal gasket and ditch the copper thing.

Spot on Mark.
Nicomkii - This is piano wiring (on my turbo engine).
Obviously the pistons should be intact

Pigford wrote:Your barrels have NOT been wired Copper needs to be annealed before reusing,,, heat to cherry red & let it cool.

With the copper gasket sealant should be used (2 x different types) to:

A: Seal the copper gasket to the mating surfaces (head & barrels)
B: RTV hi-temp (or similar) sealant in the big O-ring (cam tunnel) groove

Personally I'd get a Cometic fibre/metal gasket and ditch the copper thing.

Thanks for that Mark, I agree and will be going the fibre gasket. Thats a good indication on my gasket when you use a copper one without piano wiring, esp on No.3.
Cheers for the photo BF, never seen the piano wiring job before.