Marcello7x

iTrader: (10)

So im swapping in a new motor in my brothers car, and i saw some milkyness to the coolant lines on the new motor. I wanted to perform some test before dropping it in and wasting a bunch of time.

So i ran a compression check, and keep getting 0 psi. At one point i read 120 in one cylider, now nothing. Another i read 30 then nothing. I ran a leakdown test and it help 120 with almost 0% drop.

Is my testing messed up? I have the engine out, with the tranny mated to it, pulled all the plugs, w/o an intake mani installed. Cranking it over with a starter bolted on and jumped to a running van.

Marcello7x

iTrader: (10)

I realized the leak down wont work, the hose from the compression checker has a one way valve. I think thats why its not reading anything, it may be stuck???

ITs a cheap oem brand from splottozone.

JaYZeig

iTrader: (11)

the compression tester does have a schrader valve in..maybe try using a differnt compression tester?

Marcello7x

iTrader: (10)

got one from a friend and now im reading something. But still really low.

100 in one cylinder, which makes somewhat sense. its a cold dry engine. but 50 in another. Gonna fill it with oil, then drop a teaspoon in each plug hole and see if everything is consistant then.

chrysler kid

iTrader: (14)

If you saw good signs of milkiness I would just go ahead and pull the heads while the motor is out. New head gaskets shouldn't be hard at all with the motor out and you can inspect the head And pistons

Marcello7x

iTrader: (10)

motor is from a junk yard and comes with warrenty. Im not spending more money to replace head gaskets.

I ran everything with a good tester, with oil in it, best cylinder was 180, worst was 50. Engine is going back.

87gnx

iTrader: (3)

Take that junk back to the yard.You should get more consistent numbers.Buy a short block from one of our sponsors>>>>>>