Last post on Nov 27, 2013 at 1:06 PM
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Subaru Impreza, Subaru Outback, Subaru Forester, Subaru Legacy, Coupe, Sedan, Wagon, SUV
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Your Community Leaders are ateixeira and rsholland.
Jul 27, 2003 (5:35 pm)
Looks like you have done an excellent first-pass evaluation on your A/C problems. We will have to make you an honorary engineer!
No, I agree - your temperatures all sound a little high, but obviously, the Legacy is out of step with the others. I will try and remember to grab my A/C thermometer and check my cars (at least the OBW) tomorrow for comparison.
Somewhere I have some performance charts, but considering their age, they are probably for R-12, and not 134. They discuss how outside temp, airflow thru radiator, shade, humidity, barametric pressure, interior fan speed and airflow volume, pounds of freon & high/low side pressures affect cooling. IIRC, there was concern when 134 was introduced (1994 or so) that it would not cool as well without considerable resizing of components, as R-12 does have more 'heat transfer' ability. It is always possible that Subaru was a little 'behind the curve' in this, but it does sound like you have a leak.
#14981 of 19336 Ahhhhhhh Smoooooth !!!
Jul 28, 2003 (5:52 am)
Join the H4KB club!
Changing the plugs and wires was a real PITA but it is sure worth it! Throttle response and smooth acceleration have been restored and I can imagine that I'll be seeing some MPG improvement as well.
It took me 2 hours including prep and clean up time plus a little sacrificial knuckle skin. As those who have attempted this know, there is no abundance of clearance in there, especially getting at the rear most plugs. There are some good write-ups and recommendations (with photos) on the ScoobyMods site for this exercise.
Now at 70,350 miles on the odo my 60,000 mile DIY service is complete.
My average MPG is currently 23.5. I'll report back after a few tankfuls and let you all know if it increases appreciably.
(H4KB = H4 Knuckle Busters)
98 OBW Ltd
Jul 28, 2003 (5:57 am)
Welcome to our club. I've sacrificed a few scars for mine.
Jul 28, 2003 (1:10 pm)
You are a brave soul in attempting the plug replacement on a Phase I engine.
Jul 28, 2003 (8:53 pm)
I heard some squeaking from the rear brakes and finally got around to replacing the brake pads. This is the first pad change at 73k miles! One of the four rear pads was definitely at its wear limit but, in hindsight, I should have left the front pads alone. They still have about 40% of the original lining remaining.
As Alan commented above, ScoobyMods had great photos and advice.
I also rotated the tires and waxed the rims inside and out, of course!
#14985 of 19336 Front Differential
Jul 29, 2003 (3:13 am)
Can anyone tell me where the drain plug for the front differential is? I assume you fill from the dipstick location. Any idea how much it holds? I plan on switching front and rear with Mobil1 gear oil this weekend.
#14986 of 19336 Front diff
Jul 29, 2003 (4:30 am)
Drain plug is on the driver's side accessible from underneath the car. It's located between the engine and transmission. You need a 21mm socket to remove the drain plug. I've read that 13/16" works too. Yes, you fill from the dipstick that's located in the engine compartment on the passenger side. I believe the front diff for at A/T equipped Outback holds 1.6 qts. and the rear diff holds .8 quart (it's listed in the owner's manual).
What I do is check the diff first to verify that it's full, drain the diff, measure what was drained, make sure you wipe off the magnet on drain plug, re-install plug, fill with the same quality as drained. Full proof method to prevent over / under filling. This method is not necessary for the rear diff.
Jul 29, 2003 (5:22 am)
Get a driver with a long shaft to remove that rear diffy plug, it's glued on with some type of epoxy. Some folks use a cheater bar or even a jack (!) to apply enough force to break the seal.
Remove the top bolt first, because if you remove the bottom bolt and then the top one is stuck, you are toast, there is no way to get gear oil back in there.
#14988 of 19336 Some A/C info
Jul 29, 2003 (7:52 am)
I did several tests on my '02 OBW (H-4 auto) yesterday, then in the late afternoon on my wifes '02 Honda Odyssey for comparison. This is not exactly apples-to-apples with what you did, but gives an indication that my two vehicles can cope with this particular days conditions (which were not too challenging). If I had to write a characteristic equation, I would say that the systems were capable of a 30'F drop over ambient. I checked my thermometer against one of the digitals in the lab, and it is reasonably accurate (actually reads a little on the high side).
7:45am - driving at 50mph, 72'F outside, filtered sun, recirc, fan=1 -> vent temp = 42'F
8:00am - idle under tree, 73'F outside, shade, recirc, fan=4 -> vent temp = 44'F
12:00pm - 79'F outside, initial interior temp = 120'F. after 5 minutes of driving 45mph, fresh, fan=3 -> vent temp = 50'F
12:15pm - 80'F outside, parked in sun and at idle for 5 minutes - fresh, fan=3 -> vent temp = 52'F. Switched to recirc, fan=4 -> vent = 49'F, with fan=2, vent = 47'F
1:00pm - returned to car: outside = 82'F, interior = 115'F. Idle, recirc, fan=4 -> vent = 58'F within minutes. Began driving -> vent = 50'F
Honda at 6pm - temp about 76'F, fitered sunlight, driving: vent = 46'F in a few minutes.
I think your Legacy has a problem...
#14989 of 19336 Thanks DaveM and Juice
Jul 29, 2003 (12:46 pm)
Juice, did I read somewhere that you're using Mobil1 gear oil? Are you satisfied with it?