Guys,
Has anyone started there engine with no air box or exhaust.?
I want to heat the engine up and let it cool to re-torque the head.
After which i cam taking the engine out onto the bench.
So wanted to save time fitting the exhaust and air box.
Just wondered if anyone had done it before.?

Cheers
George

 

I put the head on the cylinder and didn't heat cycle, don't think it is necessary.

 

No bc it's a PITA. I waited 30 min and retorqued because I saw some famous engine builder say that, who knows. Hasnt blown up yet

 

You started the engine with no exhaust or air box ?

Cheers

 

why would i start the engine with out exhaust pipe & air box, if I didn't heat cycle?

 

I didn't re-torque, and I asked the question here. Many "don't worry about it" replies and not one "yes, re-torque." YMMV

 

I've built a few engines in my time and have only ever retorqued when using aluminum heads on iron blocks.

 

Thanks for the input guys.