Viper ltx se mpi turbo leak down results.

[Rob nuvill]

Hello new to the group. I recently did a leak down test after sled over heated on long hard runs but sled runs fine if your taking it easy and my results were 26 percent loss clutch side 6 center 15for stator side. What do you guys think head gasket or do you think I need pistons. Sled has 3500 miles trail mpi turbo dealer installed from new.

 

[mbarryracing]

Excessive leak down rate is a result of the air passing by the piston or valves, not leaking by a head gasket.
If you pressurized the combustion chamber with the leak down tester and the coolant pushed up in the radiator cap neck, then it's a head gasket.
If you hear the air hissing out the crankcase breather, you waxed a piston or two from heat induced detonation.

 

[twyztid]

Hello new to the group. I recently did a leak down test after sled over heated on long hard runs but sled runs fine if your taking it easy and my results were 26 percent loss clutch side 6 center 15for stator side. What do you guys think head gasket or do you think I need pistons. Sled has 3500 miles trail mpi turbo dealer installed from new.

Those results sound very familiar. What yellow piece of paper did you find them on, Rob?

Kevin

 

[Srxspec]

It likely has piston damage as well as cylinder head and block damage.

 

[Rob nuvill]

Those results sound very familiar. What yellow piece of paper did you find them on, Rob?

Kevin

son of a gun. Just gathering notes to make sure I look every aspect of it to get it so I get it the first time.