Search results

  1. J

    85 TC wiring harness: start diode?

    If the relay is diode suppressed, you don't have to worry about adding another one. The reason you can't measure the diode is because it is in parallel with the coil winding. You can only measure the winding resistance in this application. I will see what I can find out about the tach. I...
  2. J

    85 TC wiring harness: start diode?

    When a coil, such as the one in the starter relay, is de-energized it creates a reverse magnetic field called "back electromotive force (EMF). The collapsing magnetic field causes current flow thru the coil windings of the relay in the reverse direction to the original field when the coil is...
  3. J

    wasn't aware these are worth so much

    I wonder what the reserve is? Still not met at $156 bucks. :jaw: joe
  4. J

    Turbos and Ethanol

    :D :D joe
  5. J

    Gas saving power adders

    It doesn't matter how you did it, the end result was the same. The seat of the pants dyno almost always tells you what you want to know. By playing with the additional power you think you have is why your mileage went south. I'll not try to educate you on the workings of an internal...
  6. J

    2.3 Up Grades?

    The 2.3 responds to modifications the same as any other engine, but being a small engine the results of the modifications won't be as great as with a bigger engine. The biggest bang for the buck comes with the installation of a turbo engine if you don't want to go to the V8. The 5.0 is a...
  7. J

    Gas saving power adders

    Air volume to the engine is of little value if the engine can't do anything with it. Air will flow no better than its smallest restriction. If it is a MAF engine, that is a small restriction, and when it gets by that, it has to contend with the cylinder head, the same with most 2.3's. Air...
  8. J

    65 mm Throttle body

    1994 up had the 4.6 engine, not a 5.0. It could be a 93. :) joe
  9. J

    Turbo Compression Question

    A .050 mill is going to get you close to 1 full point rise in compression ratio. These engines don't like much over 8.5:1 until you get into detonation issues. They are marginal at the stock ratio of 8:1, especially the t-coupes. That is why they later engines have a fuel switch. If you...
  10. J

    Gas saving power adders

    By cutting away the airbox, you are now drawing heated air from inside the engine compartment. This nullifies any gain you may have imagined from more airflow. You want cooler air for the most benefit. Laying off the accelerator will increase mileage. Headers will help if you keep the...
  11. J

    Merkurs Forums?

    Go to: www.merkurdesktop.com It lists tons of sites. :D joe
  12. J

    A/c question

    Thanks. joe
  13. J

    A/c question

    40 degrees on maximum setting. Slightly higher with outside air. Ambient temps here are 95 plus degrees, probably over 100 degrees. System is R-12. :) joe b
  14. J

    3rd solenoid

    Sounds like the ignition switch is not releasing. When it does this, pull the small wire off of the relay(solenoid) and see if the starter stops. Operation is with ignition turned to start position, it feeds 12vdc to the starter relay which engages the starter. If pulling the wire stops the...
  15. J

    A/c question

    1989. Is the compressor contnuous run? Everything works ok, low side and head pressure are ok, cold air, but the compressor never cycles. Low side switch is new. joe b
  16. J

    Couple of questions

    I just purchased a 89 2.3 convertible. The newer 2.3 has about 20 more hp, and more compression. Is the additional horsepower due only to the the compression increase, or were there other changes? I know by changing to a MAF system would also give a little more power. How was the...
  17. J

    Air Fuel Ratio help

    You could also have a bad ECT sensor or bad/dirty connection to the sensor. If the engine runs ok after warm, this is one of the symptoms. The computer reads this sensor, and if the coolant is cold, it enrichens the fuel flow for cold start, and will keep the engine running properly until...
  18. J

    Low oil pressure

    I'll try this again. I don't know what happened to my other post. 1989 Mustang 5.0 HO, 161k miles, convertable, just purchased. Oil pressure about 1/4 way up guage. I will be checking the sender today. Car was owned by an older couple (wife's car) and had regular scheduled...
Top Bottom
Back
Forums
Menu