Hi
I started the engine first time today, since taking the car apart 2019.
Started at first try so I am quite excited now!!!

Only let it run for 30s. Oil pressure a little below middle but guess ok?

One problem; The idle speed is really high. I guess above 2000 rpm.
The Rev counter doesnt work (worked before), maybe thats related?

The aux air valve is renovated and works, but thats only relevant for idle speed when engine is warm I think...?

What should I start to look at / adjust?

I dont want to touch the car at the moment, Too excited, will only break something...

I will have some cold beer now and celebrate!

Thanks
/Marcus

 

Congratulations! Great feeling isn't it?
The AAV opens up an air path to the manifolds when the engine is cold, so it will give you a high RPM when the engine is cold, and should (if the AAV is not jammed which it will probably be) progessively reduce the airflow as the engine warms up. The huge bolt on the AAV controls the tickover when warm, screw it in to reduce the revs.
Check carefully for vacuum tube leaks and missing vac caps on the many vac lines and unused spigots on the manifolds, including underneath the throttle bodies. Also set the butterfly to a 2 thou gap when they throttles are closed.
All part of the V12 journey!

 

Congrats - living the dream. I laughed when I read you don't want to touch anything for fear of breaking. Been there brother. Vacuum leaks have to been on the top of the list. In addition to visual, try squeezing shut the vacuum tubes one at a time to see if there's a obvious one that changes the idle. There's always the unlit propane torch test, You waive the propane torch with a low flow around the manifold and various tube and see if the idle goes even higher.

 

Based on too many V12's over the years.

I am assuming?? that the aircleaners are installed, meaning the 8 bolts that attach them to the Inlet manifold are in place.

That 2000 rpm, is about what you get with those bolts NOT being there.

 

Marcus, congratulations. It's remarkable feeling when you bring an engine back to life. Enjoy that beer!

 

Hi again

thanks for the tips. I found some vacuum leaks. Will go over it again with the propane.

I also got the rev counter going and it reads ~1000 rpm (when cold). I think that should be ok?

I will seal the exhaust system now, then it hopefully sounds less (I mounted quite loose just for first tests).

/Marcus