with the great weather and a little spare time, I finally took a minute to tear into the jetta. Took off the head to do a head gasket, and also to see if there was any catastrophic damage to the #3 cylinder, which wasn't firing it seemed. It was the only cylinder that wouldn't drop the rpm's after loosening the hard line nut, and I was expecting the worst. Well, the cylinder looked fine, but found a lot of carbon/crud in the combustion chamber. I also found a nice little crack underneath the #2 cylinder precup. That cylinder was firing fine. I realize a new/different head is on the shopping list, but what would cause the crack? Can't say I've really seen it happen often. I'll try to get a pic, but I don't have a camera right now. Gonna slap the head back on tonight and see if I can get this little sucker to run again. If it runs the same as before, I guess I'll do a compression check first, then go from there.....
Oh, nice car! Just poking in as project direction has changed. I now have a rebuilt head for sale if interested. Only the orig. casting was used. PM me.
Jason
Your car brings back memories. I had an 84 in the exact same color. Along with a Rabbit pickup and a 2 door 82 Jetta coupe prior to the 84.
Before the internet and this site.......

Good luck with it,.
Stay safe, stay well. Jimmy
check that injector.
swapped it out already with a known good injector.......ran exactly the same
all good......for whatever reason.....one injector, a head gasket, four hours labor, and seven months later, she revved to life right on the first try after bleeding and running like a champ......

Still gonna need a new head though

me and my 130 pounds torquing a head gasket....
