Head gasket

Hi there. Yer I'm shore the gasket went on the correct way. When I took the old head off the old gasket had no trace of any glue being and the new one had no instructions to use glue so I didn't put any with it. The head was replaced because the engine was overheated and cracked the head. I inspected the one I replaced it with and it seemed fine I didn't put a straight edge over anything. The motor runs fine so would that mean the block couldn't be warped.

Nick, an engine can run just fine with a warped block. But if the head-to-block gap specifications are outside manufacturers limits, you will get compression, oil or water leaks.
If the engine has been overheated, it is crucial that you check all the manufacturers specifications before you re-assemble the engine.
One of those crucial specifications is checking for block warpage.

A block can develop some amazing buckles when overheated or overstressed.
It can develop misalignment in the bearing tunnels - so that's why it's critical to ensure the crankshaft spins freely when all the bearing caps are snugged up, and before any further assembly is done.

Many people fail to check all the manufacturers specifications upon overhaul.
One that is regularly missed is flywheel runout. There is always a specification for flywheel runout, and if the flywheel runout is outside specs, then you are likely to have unacceptable vibration, a possible bent crankshaft flange, or a buckled flywheel (flywheels get hot from slipping clutches and can buckle).

Cheers, Ron.

Hay mate. Ok so it would be worth my while pulling the head off and running a straight edge over it. Unfortunately it's starting to sound like the block is bugged. I was hoping that it was only the gasket but being brand new and I did bye it off ebay as a cheeper option then local stuff but it shouldn't be leaking oil it's not much but it's leaking it more I think when you put your foot down or it's at high revs.

Nick, if you want to stop the leak, and it's leaking excessively, you don't have much choice but to pull the head off again. And yes, the block needs to be checked for warping.
I trust the gasket you bought was a reputable brand, and not a "Chinese special" with dubious quality.
Yes, the oil leak will increase with higher RPM, because the oil pressure increases with higher RPM.
If the block is warped, it doesn't mean it's buggered - the top will need to be surface ground on a surface grinding machine.
Surface grinding means the engine has to be totally dismantled, as it's not possible to surface grind the block with components installed, as the grinding dust will penetrate into them, and destroy the engine after it is re-assembled.

Cheers, Ron.

If you are going to pull it to bits to surface grind the block, you might as well chuck in a piston and liner kit while you are there....

Get the head checked for warping as well...you just never know.......

Ok thanks heaps for your help mate. I'll touch base and let you know how I go.

hi
Also
have head checked for cracks and check valve sealing when head is at machine shop .

swampy