| Re: 1990 C4 Tuneup - Do it yourself ? |
Subject: Re: 1990 C4 Tuneup - Do it yourself ? by Ultraman on 2010/10/7 18:44:54 I have a 90 and did my own tune up last winter. I first took off the Air control divert valve at the front passenger side of the engine, and all the hoses and garbage that goes with that. That cleans up the engine bay and gives you a little more room to work. I went with AC plugs and Excell wires which I found out nobody much likes but are working well for me and what I use the car for. I was alone most of the time while working on the bitch, I mean my car. That was good because on several occasions I turned the air blue with vicious cursing. I did use mechanics gloves which saved a lot of skin but sometimes I needed more feel and had to go without. Eventually I got it all done and other than hard to get to it was not that difficult to figure out. I have a couple of repair manuals and checked them to make sure I had the right wire going the right places. It made me feel good to do it myself and I try to do all that I can with the help of the Guru's. I have since taken off the Air pump itself and put in a air pump delete kit. Some guys make their own but I bought mine. TPIS has a good one and also Corvette Central. I also took off the Frisbee on the front of the motor which serves no purpose that I can see and wieghs a ton. Andy says that alone adds 5 h.p. If you live where you have smog checks you may want to leave the Air equipment on but it's whole purpose in life is to warm up the Cat faster so it can do a better job when you start the car. Unbelievable amount of crap hung on the engine to accomplish that. If you do have to get checked let the engine warm up before running it through and you should have no problem. Research the threads on Guru and don't hesitate to ask if you have a question. Don't be in a hurry or you will get pissed off. |
