s50 will not bleed

[catalyst.]

Yeah im callin it, its a bad HG. The pressure test wasnt great, just tried to bleed again and overheats instantly tons of air in the system. Also now the engine is stumbling badly probably from a leaking HG getting worse from repeated over heating.

Great. Should have just sent it to the machine shop in the beginning. O well, im out about 300 in oil, coolant, thermostats, gaskets (which i will now most likely have to replace again) and unfortunately considerable time.

[jlevie]

You could test for a head problem by doing a leak down test with 170-180psi air. But there is really no need to do so. The coolant fountaining out of the overflow tank when you rev the engine is sufficient proof.

[catalyst.]

Thanks for the help the machine shop is getting me a quote on a rebuilt bottom end/hone/re ring and checked out/resurfaced head on monday.

[wilholl]

Sorry to here that it didn't work out.
I guess I got lucky with not having to tear mine down. Crossing my fingers, it has been running for over a year now.
I hope you get yours running soon!

[catalyst.]

Well, it turned out to not be the head gasket. (I still am paranoid though lol) I was literally about to pull the head and i realized that you e30 guys convert the coolant temp sender to the m20 one which will not work on the e36 gauge - makes it read high.

So i slapped in a new m50 temp sender, and away i went.