HACKGT350

i brought my car into class today to do a cylinder leak down test and was very surprised with what the readings were

1. 30%
2. 20%
3. 15%
4. 20%
5. 35%
6. 20%
7. 20%
8. 15%

i was expecting it to be a hell of a lot worse than that and they were all leaking from the rings my valves were perfectly fine

stang8689

Not bad at all for a car almost 24

HACKGT350

yeah i was pretty surprised myself i was waiting for atleast 45% on all the cylinders or more i was pretty happy when i saw that except for 1 and 5 they are pretty high

officer4c13

how do you do that test?

HACKGT350

you have to get a kit for it. let the engine get up to operating temp then take out all your spark plugs. then starting with #1 cylinder get it on tdc on the compression stroke. pressurize the cylinder. the gauge wll show you how much the cylinder is leaking i think spec is between 6% and 10% leakage. thats also on a brand new engine. if you have more than that you have to listen for the air in different places. if you hear it from the tb its the intake valve seat is no good or a bent valve. same goes for the exhaust it will be the exhaust valve. from the oil filler its the rings and in the coolant its a cracked block, cracked head, or blown head gasket, in the adjasent cylinder its the head gasket as well

Shelty

not too shabby, isnt your GT350 nearing 200K?? and wasnt she abused a bit before you got her? original headgaskets?

HACKGT350

oh yeah when i first got it the thing was a wreck wasnt maintained at all and was beat to death. now its maintained and i still beat on her very hard almost everyday and yes she has almost 200k on her

Shelty

gotta love the durability of the 5.0 motor,

they are built like these

HACKGT350

lol actually those arent built very well till you cement them together with others to make a wall. 5.0 is more like as strong as a wall of those

mjr46

look like in the near future it'll be time for a super build