Jump to content
Ultimate Subaru Message Board

scar13

Members
  • Posts

    12
  • Joined

  • Last visited

Posts posted by scar13

  1. If you have overheating problems with a ej25d, the hot gasses escaping past the head gaskets are displacing the coolant, the resulting pressure in the cooling system then over powers the spring on the rad cap and you get the boiling over in the overflow reservoir.

    In the article you linked the author is working with extreme conditions. You have a stock unit which should be adequate for daily driving.

    On your model, the radiator, thermostat and head gaskets are suspect/questionable.

    His mods will not help you.  

  2. you can find replacement u-joints at the ujointstore.com but as earlier mentioned they were not designed to be replaced as the caps are staked into the yoke. you have to carefully use a dremel to grind the stakes down then disassembly is as normal drive shaft. vise and hammer. the replacements come with snap rings to hold them in from inside the yoke but I found I had to grind slightly on the yoke to get them fully seated. and the inside of the yoke is stepped to increase clearance to pivot. so the c-clips have to be installed so that they are holding on the thich part of the yoke. the joints cost me 20 bucks each. but if you are not very mechanically inclined just get a used unit. I only did it because ive been a wrench for over thirty years and when told "no you can't " , decided "i think I can". I could have gotten a used shaft cheaper at the pull it yourself yard.

  3. most brake light switches you just turn counter clock wise 90 degrees and pull out of holder. reverse to install, but to get proper operation, when you install, only push switch in until plunger is depressed then twist clock wise to lock it in. be gentle doing this as the piece it locks into is a plastic part. also; the elec connector has a tab that needs to be depressed before pulling from the switch. if the tab does not depress easily push the connector into the switch then depress tab then pull apart, this removes tension from tab.

  4.  Does the clutch on the compressor disengage when its blowing warm or is it still engaged? If it disengages (stops spinning) it is probably being cut off by either too high pressure on the high side pressure switch(to protect the compressor from becoming damaged) or the evaporator temp sensor(this cuts the system off if it gets too cold to prevent the evaporator from freezing up) or the compressor thermal protector opening up because the compressor is getting too hot. First I would get a tech to hang gauges on it to make sure your pressures are good(not too high or low while operating).

       If the compressor stops running and the pressures were good then I would access the evap. temp probe connector behind the glove box (2 wire connector, black wires that go into the black plastic ac box) while car is still running and ac is in warm blowing state disconnect temp sensor and use jump wire on car harness side of connecter, if a/c starts running then the temp probe (thermistor) is most likely bad. Don't run the system with the jumper on there for a fix as you will freeze the evaporator up.

    • Like 1
  5. I have a 98 OBW that's developed a rod knock. I got a ej251 long block at the pull it yourself yard. I could use 95 2.2 heads or the 25D heads. I'm leaning towards using the 2.5 heads as I already have them. I'm not sure which head gasket to use though. There are different part numbers for 251 and 25D. I have heard this combination will raise the Compression. Does anyone know how high? On that same topic what would the compression be elevated to if I used the 95 EJ22 heads? The 251 engine came out of a 2000 model legacy. Thanks in advance for any info.

×
×
  • Create New...