Timming Issues?

[bmxboy809]

I have been working on this 86 ranger for a couple years now trying to get it running between school and work and I think the truck is possessed. This is the second 2.3T that I have installed now because the main bearings were shot on the first one. Last weekend I replaced the electronic ignition control module and a much needed head gasket. I also have installed a TRE high flow fuel pump and replaced the filter with a more modern in line filter. The turbo spools up and makes boost but there is no pull it just makes lots of noise. The egt is too hot at idle and way to hot under any load. This all points towards retarded cam timing. Would one tooth on the belt cause all of this? I have been using a straight edge to line up the pointer on the cam gear, not the plastic shield. any suggestions are appreciated.

 

[martin]

Sounds more like a lean mixture or retarded ignition, perhaps a combination of the two.

 

[bmxboy809]

I know it means one of those two. How does one tooth on the timming belt effect everything. Without an air/fuel ratio gauge everything is pointing to retarded timing. I have adjusted the ignition timing already and set it back to stock.

Another weird thing that started happening is that if you rev the motor up as soon as it falls back to idle it moves up to high idle and the exhaust gets really hot. Then after about 20 seconds it falls back to base idle. It does this with the IAC both plugged in and unplugged.

 

[martin]

I doubt that one tooth off would cause this problem. I'm not completely sure of your installation but it might be a sticking pcv valve, blow off or by-pass valve. How is you air metered, maf, vam or is it speed density.

 

[bmxboy809]

I used the stock wiring harness, switched a few wires, deleted some, and added the few for the 88 large VAM. There is no blow off yet its completely stock set up. I believe the PCV is ok but I will double check.

 

[martin]

I'm not familiar with the stock 2.3 stock installation but I am familiar with stock installations from other manufacturers. consequentially my comments will be based on generic problems and should be accepted as such. most stock installations use a by-pass valve and it sounds like its not opening when you close the throttle which is leaving the air between the turbo and throttle plate compressed until the motor can get rid of it. I'm starting to think this going to be difficult to sort out without knowing what the air fuel ratio is. What does the ignition timing go to when you rev the motor?

 

[kimcrwbr1]

PCV valves are cheap if you dont know how old it is just change it. It does sound vacuum related use a piece of vacuum hose up to your ear and search around with the other end and listen for hissing on all the gaskets and fittings/hoses. Replace any hoses that are hard or cracked and dont push on tite. I am guessing you reset the computer by disconnecting the batt for 1/2 an hour and make sure everything is correct before you start it up. Any codes.