4.0L HO Jeep Engine Build

Doktor_X showed up at my door around noon to check on me and I was sprawled over the couch in greasy clothes after the all night thrash. He gave me some words of encouragement and gave myself a quick face splashing in the sink, put a pot of coffee on, changed my clothes and off to the garage again.

Once again the Dok comes to my rescue. Having another pair of eyes and someone to bounce questions of off is an invaluable resource. We checked this, that, the other thing and 20 other things when I came up with a theory. Since the installed centerline of this cam from the factory is a full 10 degrees advanced from the original, maybe if I added one tooth more to the cam position sensor/distributor, it would fire. I told Dok "if this isn't it, I'm done for the day".

Lo and Behold, it fires immediately! Yeeee Haaaa! Apparently the computer was wigging out due to the advanced cam installation. The rotor is now just PAST the number one position on the cap at TDC which is not where it was when I checked it during disassembly nor where the manual says it should be. Remember that on this engine, the computer controls the timing via a crank position sensor and the distributor incorporates a cam position sensor and distributes the spark and that's it. What a PITA. I now understand why they went with coil packs on the later models.

Anyway, the engine sounds very truckish at idle but takes on a different character above 1200 rpm. The throttle response is incredible and unlike any Jeep I've had the pleasure to drive. I can't wait to get this sucker on the road. :)

I'm trying to get the vid up on youtube but it's taking forever.....

I'm freaking beat. My back hurts, my ankles hurt, my hands hurt, lol.

Here it is! It sounds like a 6 cyl BMW when I'm on the throttle:

[ame="http://www.youtube.com/watch?v=tOHe9vWWQ60"]YouTube- JeepSSBuildDynomax.AVI[/ame]