Leak Down Test TDC question

[cgfen]

Lot's of thread son leak down tests, but none answer this question.
If I start @ TDC firing stroke for #1, are any other cylinders also @ TDC firing?
If so, which ones?

Real question = What is the most efficient way to test all cylinders with minimal crank rotation?

I'm thinking this is the "best" way???

so if firing order = 1-6-2-4-3-5......

• find TDC firing #1 and test
• rotate 120 degrees to #6 and test
• rotate 120 degrees to #2 and test
• ..... through to # 5?

I guess I'm asking if;
more than one cylinder can be tested without rotation
or
does every 120 degrees rotation after #1 TDC = TDC firing on the "next" cylinder.

Thank you

Craig

[cgarr]

You thinking maybe BDC power stroke? I like to bring each up to TDC most times if you have any cylinder scoring and want to check for that I would think TDC would be best. Lock the crank down.