Topic: We are back in action: the Z is alive.
After the October race at MSRH, our motor was running but not happy.
The blown head gasket was a bit more involved than initially suspected.
It appears detonation slowly took out the head gasket. As the gasket slowly burned up/eroded, we started pressurizing the cooling system. This led to the typical overheating issues from a blown head gasket.
We tried Blue Devil miracle head gasket juice at the track and the initial results seemed good. Ya, we should have changed the head gasket.
The stuff is heat activated like the Cash for Clunkers death serum. It goes in with cold water as a liquid and congeals or whatever when it gets hot. Somehow we ended up with gritty sandy crap in the crank case with milk shake oil after our Blue Devil treatment.
We had no coolant in the oil until we tried the Blue Devil.
Upon tear down, our bearings got a bit screwed, the rings got cooked due to over heating and we broke some ring landings on cylinder 6 with the Blue Devil evidence.
Yesterday, our newly refurbished motor went back into the car and came to life. It ran great for about 3-5 minutes then just shut off. It started right back up and died seconds later. This happened a couple more times. The ignition module died.
Might have something to do with wiring it backwards at first. I was surprised it had a slow intermittent death but it died. Threw in a spare, correctly wired and we were back in action.
Our Z is back and ready to continue the Hopeless Z battle for victory at MSRH. All MR2s and most SHOs should be trembling in fear... or just doing paddock engine swaps.
#35 LRE
1973 Datsun 240Z