Valve Information Request - One More Ticker

[FJR-Kevin]

I posted the below message on the other board but so far no replies. Does anyone know where the post is I'm looking for? My bike is in the shop right now being repaired for the ticker issue. I'm stationed over here in Japan. The bike shop where I got the bike at is now replacing the cylinder head. I checkout the old head and sure enough some of the exhuast valves were moving around in the valve guides! Number 1 cylinder was the worst. Anyway here's the post from the other board:

I saw a post a little while ago about the difference between the old exhaust valves used in the FJR head and the new ones used now. The post had a drawing of the valves with the Rockwell Hardness at different points on the two valves. I did a search but could not find it. Can someone help me out here and post the link? Thanks FJR Brothers.

PS I hope it was this FJR website I saw the post.

Thank you in advance.

 

[Warchild]

Yes, that was my post... back in Nov, 2004, IIRC.

Here ya go:

Alright.... here are the final Lab Analysis results that compare the old exhaust valve out of a badly ticking FJR (34K on the odometer) and a brand new exhaust valve.
Both valves look identical in physical appearance. Both have "5JW" stamped on the valve face, and an embossed dot next to the lettering.

Unlike the same testing performed and an "old" and "new" Exhaust Valve Guide (which showed they were identical, save for a second embossed line on the newer guide), the Chemical Analysis and destructive Hardness Test performed on the valve has shown that the valves are significantly different in material composition and hardness.

Below is the Hardness Testing results:

The hardness readings reveals that the new valve has higher hardness values in the lower stem area, closest to the seat.

The results of the Chemical Analysis for the two valves are depicted below:

What is the most different about them is the amount of Chromium and Nickel in them at the lower portion of the valve. These are alloying elements, and the more chromium and nickel, the higher the alloy. Zinc is significantly different in the samples, though it is not thought that the valves are cast material. Additionally, there is a total absence of Tin and Copper in the new valves.

/*------------------------------------------------------------*/

So endth the Valve Guide and Valve stem chemical analysis ...

 

[FJR-Kevin]

Thank you Warchild. :clap:

 

[Vstar2FJR]

Glad you kept all that stuff WC. I've moved offices several times since, and can't seem to find my original documentation anymore.

John

 

[FJR-Kevin]

What happened to all the photo's of Act 1-5 of the ticking issue. I was putting together a binder with the whole subject and now it's gone on both boards.

Warchild, do you have plans to be the whole thing here? It's great reference material. You did a great job with all the research and I'm sure you paid a lot of money for the tests you had done.

Is there anyway you can send me the stuff via email? Let me know and thanks again.

 

[Warchild]

Warchild, do you have plans to be the whole thing here?

Oh, yes.... should be done within the next few days....

 

[quicksilver]

I am pretty sure that I've stated to tick.

16K mls on my 2003.

It reminds me of when we put a playing card in wheel spokes of bicycles.

It comes and goes for now.

I have 2 yrs left on the warranty.

I plan to ride out the summer (and the EOM).

I patiently await Warchild's "History of a Ticker" anthology.

Thanks in advance.

The photos seem to have disappeared from the other board.

Any reason to not post it on FJRTech?

I hope to make a professional looking Technical Bulletin.

My local dealer is completely clueless on this issue.