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Recently put new rings in but running on the ramp for 20 minutes at tick over and then testing it I’ve got just 75 on the left and 90 on the right

There’s a lot of crank case pressure and oil is trying to leak out below the piston level
 

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not enough information.

What was done to the engine? were the rings installed properly and not upside down? ring gaps varied? proper size installed? gapped properly? correct rings? cylinders bored or honed? measured for oval? valves done? leakdown check done?

crap, hands too tired now.
 

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The rings won't seat just sitting, running at tickover. No load running will just burnish the high spots and will never seat the wear surface. It needs to be put under load to seat the rings, get on it and ride it.
 
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