Just did a compression test engine was cold (well its like 80 degrees out today but I didnt run it first i mean) did it with the gas to the floor and got 160 175 170 175. Would just like to know if thats good with the 160 in there. Ive been suffering from overflowing antifreeze out the overflow and everyone says head gasket so just curious on the numbers.
Thanks

 

Thats Awesome! 145 is Spec

 

This was without the engine warmed up tho. So you dont think the head gaskets bad with those numbers?

 

Forgot to mention its an 05 with 52k on it

 

Might want to metion if its stock block and head?

 

Do a leakdown test and that will tell you where your problem is.

 

Yeah its stock. was told that 160 might be a broken piston ring? and could be causing all my problems

 

could be your HG

 

This might sound weird, but bring it to any place that has a gas analyzer. They can see the hydrocarbons in the cooling system if they put the probe at the coolant cap opening.

Also they make testers for head gaskets at the auto parts stores now.

Good luck

 

numbers look goo to me
as long as all the cylinders are clore to the same your good

 

Yeah i plan to do a leak down tomorrow and a block test sometime to see

 

Your supposed to test cold for compression but if your having problems then do a leak down test. But i don't see how you have a problem bc if you have a blown hg or have open valves it's going to read lower than 145 not higher. And the only way I can see it reading higher is if you had coolant in the cylinder but then you would be having white smoke out the exhaust, but I don't think every cylinder would be like that

 

It was cold. but no i have no white smoke just the coolant pushing into the overflow till it overflows did thermostat and cap. Doing leak down tomorrow.

 

doing this on boost I take it?

 

leackdown test is a must when you have inconsistant numbers across the board, spcially when you are saying overflow tank is filling up