RS34 Tuning Assistance Please

Wookie58 wrote:

My personal preference (and it is just that) is to do this with the piston at the top (I tend to air on the side of caution and with the piston at the top, should your air line burst the valve can't fall in) The easiest way to do this single handed is to pressurise two cylinders together (one up and one down) using a "Y" piece on the air line. It's easy enough to make fittings for the head by welding air line fittings into the shells of old spark plugs with the ceramic removed

That should work as well as it should prevent valve drop in case the pressure drops.
 

SWest wrote:

I wouldn't worry about it yet Dave 

 

daveo wrote:

SWest wrote:

I wouldn't worry about it yet Dave 

 

I may have found the culprit, and it's not what I was expecting...

Video link below:
photos.app.goo.gl/yMse8ena71guhGrKA

I believe the piston rings are fine...but that #3 exhaust valve seems a bit wobbly. 

🤔

 

Bozo wrote:

Be careful, those plugs are really lean, I would start richer then go leaner, your plugs are too white, they should be dark grey (gray for US)

 

Bozo wrote:

Thats better the colour looks better. The flash obviously made it look very lean