Okay I drove my truck home from my Friends house one night it drove with no noise of any kind. The next morning I got up and went to start it and when it did it sounded like it was going to blow up. I shut it off and asked some friends and family what could be wrong. Well I narrowed it down and went with putting on a new timing chain kit. When I started working on taking it apart one of the guides broke so problem fixed that's what was making all the noise. I had a friend come put the chains and gears on and so it would be in time. Well I went to change the oil when I took the drain plug out about 12oz of water came out before oil did. Some friends said that happens if it sits and when the timing chains are replaced. I get everything together go to start it and the starter turns you can hear it but not engaging the fly wheel. I Need my truck back so I can get back and forth to work. What could my problem be. Oh it's a 98Nissan Frontier 2.4l automatic.