[Thomas]

The hardened caps from GS Valves arrived. They were so kind to send them as a private parcel! So, no trouble with extra tax and customs charge.

[VicYouel]

Thomas
That is very useful and I did not know that!
Vic

[Thomas]

GS Valves will make me four caps for 10 pounds each. Surprisingly, they quickly sent me a drawing (attached). Does the club know about this? Could be interesting for spare parts supply.

[Thomas]

Yes, it was hardened since I drive the machine for about 5.000 miles. I discovered this very problem after I worked on the rocker box and valve gears.

[singleminded]

Was the valve cap hardened before it was fitted..If it was just ordinary steel it would wear quickly.

[Thomas]

I am in need of new 3/8" ID valve stem lash caps. Where can I get them?

[Thomas]

Hi all,

after a 200 miles run I noticed excess valve clearance at the exhaust side. I then discovered that the valve cap is significantly worn (see picture). Does somebody have an idea why that can happen? I followed Chris Odling's recommendation the lengthen the push rod. After I have installed a 2.5mm ring I now had to add another 2.5mm to get a nearly symmetric force application onto the valve tip. I have no idea what might have happened.

Cheers, Thomas