Rep Power: 379

OK so the new head is on. When I started it the RPM's went right up to 2K after running for about 2 minutes the RPM's started going up and down over and over again. There's a mechanical noise that I can hear too which spooks me out. I didn't drain fluids before I pulled it, but I drained all the oil and flushed it with a quart before I ever even started it. One belt squeals but thats and easy fix. I Zip tied the cam gear to the belt before I ever even pulled the head off so timing should be right on. I know about the Idle learn procedure but the car was off the battery for 12 hours so I'd imagine I don't need to pull the ECU fuse. Any suggestions as to the noise and and the idle? I set all the valves before I put the head on (I'll do it again after it warms up) and I'll flush the anti freeze when it heats up enough to open the thermostat.

 
Rep Power: 290

hmm. not sure.. got christies on the mind. ahh goin AGAIN tonight, round 8(baseline near az mills)

good luck

 
Rep Power: 0

even with the ECU learn procedure sometimes it still needs to take some time to learn. Mine still took an extra day for the idle to smooth out when I put my TB on so I would give it a day. Also, our cars tend to be a little mechanical sounding. I mean hell my engine has had some wierd mechanical sounds since mile 1 and I have over 25K on it, although I think I have traced it to the PS. I mean it could be anything from parts just needing to reseat themselves after being removed for the pnp job, to a random rattle, I would be inclined to lean away from a mechanical flaw or defect for the time being.

 
Rep Power: 379

I've spun 2 sets of rod bearings in my lowered b2000. Knocks scare me.

 
Rep Power: 379

Found 2 vacuum lines that were unplugged. Had to get a new power str. belt. Re checked valves and everything runs great. Just raced a early 90's prelude and hung side by side. I think he had more top end cuz he started to pull at about 80. Not much though.

 
Rep Power: 0

when are you going to hit the track with it?

 
Rep Power: 379

Not sure yet. Threw 2 codes. One for the ECT switch. I think that there's an air bubble in the coolant preventing the thermostat from opening and 2) Vtec system malfunction, could be a few things.