I found my missing horses!

[Roger]

Just a short follw-up on my previous posts about lack of power and valve timing. The valve timing was indeed way out with lack of power as a result. And it was not one or two teeth out, it was much more than that. I estimate that the valve timing was at least 7-8 teeth wrong. I can not for my life understand that the engine even started and run at all. I took it for a short run in Mariehamn today, my son took a short video from back seat. Unfortunately there is an annoying metallic clattering from the engine, sounds like a very worn bearing. I will adjust the valves tonight but I doubt that it is the root cause.

Not sure if you can hear the knocking noice from the engine, but let me know if you know what it is 🙂

 

[Colin Lindsay]

Definitely a clattering, is it fuel pump?

[Pete Lewis]

I dont think that clatter is engine related ...have a look at drive line for some oddity 

Pete

[Ian Faulds]

Speedo cable ticking?

[Iain T]

Does the sound vary with engine revs or road speed?

 

Edited March 23 by Iain T

[Iain T]

45 minutes ago, Ian Faulds said:

Speedo cable ticking?

I have an annoying tick at around 60+mph. I've tracked down most culprits and now think it is speedo or cable related. The speedo is stable so I'll unscrew the cable at the dizzy and see.

Iain

[Roger]

Thanks for all suggestions! I found the problem. I adjusted valve clearance by the book but apparently I did not torque one of the locknuts properly. Valve No 2 had a clearance of about one centimeter, and the locknut was lying on the cylinder head. Runs smooth and quiet now (well, quiet as a Triumph engine....). I had a narrow window of opportunity to test drive without snow at the moment, it will soon get cold again. Happy days!