'the spark plug in #3 was burned down to a tiny nub'

I will check the compression, I was just wondering if the burned plug meant something, I haven't ever seen a single burned up plug before.

2 years ago I bought a 2001 cross country with a clearly blown headgasket (pressure in the radiator bottle), anti-freeze shooting out the back. Thanks to help mostly from this forum and a few friends I tore her down and replaced the head gasket and she ran great for about a year. I gave her to my 18...

this groove is on the driveshaft I assume, since that's getting thrown out? My only question there is that my driveshaft will turn, slightly anyway, so will whacking these grooves work or is it supposed to be such that it won't move.

Hi, I have a 2001 V70 XC, I got the car for $1300 this year cause she had a bad heat gasket. I was able to replace the head gasket, with some busted knuckles; she has since been my daily driver for a couple months. A subtle knock coming from the middle of the car under load got worse and worse until...