99 xj 4.0
It uses coolant slowly, like the overflow tank will be at low after maybe 2 months. Compression test indicated 120 on cylinder 1 and 150ish on all the rest. Spark plug in cylinder 1 has extra rust colored crap on the ceramic and ground strap. So do you guys think I need a new head gasket, or cracked head? Its runs great, occasionally on hot restart it will hesitate for a few seconds and have a slightly rough idle. I'm assuming that's some coolant leaking into the cylinder. An oil analysis through blackstone indicated 0.38% coolant contamination.
Thanks.
It uses coolant slowly, like the overflow tank will be at low after maybe 2 months. Compression test indicated 120 on cylinder 1 and 150ish on all the rest. Spark plug in cylinder 1 has extra rust colored crap on the ceramic and ground strap. So do you guys think I need a new head gasket, or cracked head? Its runs great, occasionally on hot restart it will hesitate for a few seconds and have a slightly rough idle. I'm assuming that's some coolant leaking into the cylinder. An oil analysis through blackstone indicated 0.38% coolant contamination.
Thanks.