Hey guys new to this site and really need some input here. Recently rebuild engine and have pretty much gone through every system on the car and cannot figure out this idle problem.
The engine is pretty much stock other than wiseco 86.5mm pistons, tomei oil restrictor, arp head and main studs, crank collar added to machined and polished crank, acl race series rod and main bearings. I used an oem nissan complete gasket kit and replaced every single gasket, seal, o-ring, and washers. Valves seals were also replaced.
I bought the car without and engine, found a blown engine and rebuilt it. The cams as far as I could tell were stock as the engine was completely stock so why would someone put cams in and nothing else. Anyway the engine was built, installed and runs great other than this lumpy idle. It runs better when warm but when cold it's really rough but the idle is dead on and the needle is not hunting up and down, its just a rough idle.
When warm it's alot better but still has a slight miss and is lumpy. I have to turn the idle up to about 1200rpm to smooth it out but it still has a slight miss and not as much up a lumpy idle. The video's I posted were taken today and I had set the idle down to about 1000rpm to get the lumpy idle. I wanted take the video when I first started the car this morning but the battery on the camera was dead. You can also hear a erratic valve tick over the regular valve tick(no so much outside the car but when inside you can here the erratic tick). Anyway I ready need some help with this.
