Ok, so a few moments ago, I fired up the Goblin. Because this was the first start after an engine rebuild, before I installed the fuel hose, I disconnected the fuel pump and turned the engine over using the starter for a few rounds that each lasted about 5 seconds. Once I found oil in the oil filter housing, I decided the oil pump was primed and it was time.
I connected the fuel rail and fuel filter with a short stretch of AN6 hose and threw on the Bluetooth OBD2 reader to immediately find that the power light on it did not turn on... Ok, problems already... A quick fix with a spare piece of wire from the battery terminal to the power pin (pin 16 red/white stripe) solved that Issue and I got my phone connected. Everything that I could read live seemed to be showing real data, so I hope that this was the only wiring mistake I made. I think I'll route that jumper wire in a clean way and make it a permanent feature unless you guys have a better idea.
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Once I got my reader running, I turned the key, heard the fuel pump prime, and started the car. The engine only turned over about 3 times and roared to life, albeit, roughly. After some coughs and sputters and a bit of help from the throttle, the car idled strongly around 1000 RPM. I saw the temperature reach about 140 degrees after a few minutes of observing at Idle... **see note below** and then held the throttle to produce about 2000 RPM until the engine coolant temp hit 170-180. Here, at the 9 minute 30 second mark, I let off the throttle to again take a look around the car, but when I let my foot off the throttle, the engine sputtered out. I tried to restart it and it didn't want to fire up unless I gave it some throttle. At this point, I didn't push things further and am letting it cool while I make this update. I'm not too concerned because I made so many big changes that it needs tuned BADLY, but I can't say I'm not concerned. Total run time was around 9.5 minutes and I've got the data log to share:
click on the Reddit links to see first start idle and data log in real time.
Pics of different point at first startup. time correlates with time ran:
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Also, I noticed the coolant level didn't drop much while running. I did follow the video procedure on YouTube for filling coolant so wasn't concerned much. After things cooled off, I popped the coolant hose off the passenger side and the head was bone dry. I added about 3/4 gallon of water using a piece of spare hose to the head... which I didn't find too amusing. *edit* I’m showing my inexperience… of course the YouTube didn’t show filling the engine with coolant because they didn’t do a full tear down and rebuild.* So, could this have caused damage?? Give it to me straight, although I fear your answers. I feel sick that I put faith in the coolant temp number in front of my face, to find out that there's basically no coolant in my engine. ugh.
*** note *** ...at which point I saw a small puddle under the bell housing/flywheel area of clean engine oil on my floor. this had to have leaked out pretty quickly and then abated because I wiped it up and only saw a couple drops on the wiped floor after 8 minutes-ish more of idle/ 2000 RPM (9 min 30 sec mark in vid). Thoughts? blowby around rings pushing oil around rear main seal until things seated right? I'm stumped and mildly concerned. I reused the original flywheel bolts, so could oil leak around those threads? is that even a thing? any input welcome.