Leak down test

[vacuum 6]

Does a leak down test need each cylinder at TDC or do I perform the leak down test like a compression test…turn the engine over 5 times?

 

[vacuum 6]

The answer is yes each cylinder has to be at TDC.

Another question getting cylinder #1 to TDC easy but after that much far do I rotate the engine for TDC on #6, #5, #4, #3, #2?

 

[S2V6RACER]

If it is not at TDC it will push the piston down and you better make sure you don't have any wrenches on the crank if that happens.

 

[vacuum 6]

Another question getting cylinder #1 to TDC easy but after that much far do I rotate the engine for TDC on #6, #5, #4, #3, #2?

Anyone?

 

[vacuum 6]

Another question getting cylinder #1 to TDC easy but after that much far do I rotate the engine for TDC on #6, #5, #4, #3, #2?

This is the procedure I did to adjust the valves...rotate the engine twice.

At #1 TDC adjust these valves;
Intake: 1, 2, 3
Exhaust: 1, 5, 6

At #4 TDC adjust these valves;
Intake: 4, 5, 6
Exhaust: 2, 3, 4

Ok so after #1 TDC rotate the engine once and #4 is at TDC. Between #1 & #4, is #6 at 120° and #5 120° from #6 Then the same for #3 and #2...120° apart after #4 TDC

 

[S2V6RACER]

Anyone?

120 degrees of rotation from TDC #1 will put you to the next cylinder's TDC in the firing order. Use firing order 165432.


My balancer is marked TDC on 120 intervals and the appropriate cylinders it applies to.

 

[vacuum 6]

Thanks Ted.