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#1
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P/S & Brakes: I said I would... So here goes...
Power Steering: As far as I can tell the main differences in the two types of power steering systems on the SVX is almost totally limited to the rack & pinion assembly and the steering column itself. Different part numbers, etc.
There do seem to be two different high pressure hose assemblies but they look to be interchangeable: one has a shorter hose and a steel line on top of the passenger side of the motor, the other a longer h/p hose. The pump itself, pully, reservoir, connector, pressure switch, etc. are the same, at least as far as I could tell, from '92 -'97, at least as far as US cars are concerned. The pressure switch on the pump connector (top of the engine) seems to be more concerned with simply maintaining idle quality than as a high tech sensor re: "electronically controlled speed sensitive" vs. rpm controlled systems. IMHO all that difference is addressed at the column and @ the rack & pinion. Probably a different electrical interface with some computer functions, also. Front Brake Vibration: I was prepared to purchase new (actually rebuilt) unloaded front calipers WITH mounting brackets (which means the parts which the calipers bolt to, containing the pins, etc.), new hoses, pads, etc. All it really needed was new rotors. Mine were original, 144K+ miles, turned three or four times (last time they told me that was it: couldn't be turned again but within spec for this turning)... I believe that as the rotor thickness is reduced the pads are moving & releasing at a point within the caliper where any warping or pad wear exascerbates the vibration/noise. All I can say is that in my case the brakes feel like they are brand new: no vibration, no squeal, etc. I didn't even change the pads because they were all appeared to be worn equally, this with over 30K miles since the last brake job. I'm happy! Cheers!
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' 92 SVX @ 185K ' 91 420SEL @ 223K! ' 88 420SEL I. @ 178K (what a buy!) ' 87 F250 @ 180K ' 93 ZX-11D @ 29K ' 93 SC400 @ 93K 2001 Valkyrie Interstate @ 6.6K (Brynhild) Y2K NightHawk 250 @ 1,500 miles ' 88 420SEL II. @ 208K '85 F150 @ 135K |
#2
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What kind of rotors did you get?
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. Earl .... ... .... ><SVX(*> Subaru Ambassador [COLOR=”silver”]1992 Tri Color L[/COLOR] ~45K (06/91) #2430 1992 Dark Teal LS-L ~184K (05/91) #0739 1992 Claret LS-L ~196K (05/91) #0831 1992 Pearl LS-L ~103K (06/91) #1680 1992 Pearl LS-L ~151K (06/91) #2229 1992 Dark Teal LS ~150K (07/91) #3098 (parts car) 1992 White LS-L ~139K (08/92) #6913 1993 25th AE ~98K (02/93) #164 1993 25th AE ~58K (02/93) #176 1993 25th AE ~107K (02/93) #215 1993 25th AE ~162K (02/93) #223 1994 Laguna Blue Pearl LSi ~124K (1/94) #2408 1994 Laguna Blue Pearl LSi ~144K (10/93) #1484 1994 Laguna Blue Pearl LSi ~68K (10/93) #1525 1994 Barcelona Red LSi ~46K (02/94) #2624 1994 Pearl LSi ~41K (12/93) #1961 1995 Bordeaux Pearl LSi ~70K (02/95) #855 1996 Polo Green LSi ~95K (03/96) #872 1997 Bordeaux Pearl LSi ~55K (08/96) #097 2003 Brilliant Red LS1 Convertible ~29K (04/03) #8951 1999 Magnetic Red LS1 Coupe ~33K (04/99) #6420 My Email | Old Locker | New Locker | Picture of 15 of the 19 |
#3
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Rotors were from Rockauto.com
Raybestos PPG+ part # 397 96350 delivered @ $111.15
Very happy with them! Cheers!
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' 92 SVX @ 185K ' 91 420SEL @ 223K! ' 88 420SEL I. @ 178K (what a buy!) ' 87 F250 @ 180K ' 93 ZX-11D @ 29K ' 93 SC400 @ 93K 2001 Valkyrie Interstate @ 6.6K (Brynhild) Y2K NightHawk 250 @ 1,500 miles ' 88 420SEL II. @ 208K '85 F150 @ 135K |
#4
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Good info,
I have been wondering about the differences in speed sensitive vs. rpm sensitive, as my replavement rack and pump seem overboosted, plus the idle is poor sometimes ( anew problem same time as new rack) Question, what do you mean by switch for idle quality?
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Cheers! Gordon 1997 Ebony #308 113k "The Black Diva"SOLD 1992 Black over Liquid Silver 152k SOLD 1992 Ebony 251k 444 SOLD 1999 Silver SLK230 134k SOLD 1997 Green Outback 137k SOLD 2013 Honda Accord I4 SOLD 2015 Subaru Crosstrek 30k 2018 Tesla M3 30k |
#5
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P/s "switch"
This is part # 34428PA000 and is called the "oil pump switch" by Subaru: it is located directly to the left (as you view the engine from the front) of the pump body itself. It is round, screws into the "connector" from the back and has a 2-wire pigtail attached. It is my belief it somehow basically measures (vs. "regulates") presure out of the pump and that this signal may be used by both the "rpm sensitive" AND the "electronic speed sensitive" (Touring Package) power steering systems as AN input (as in potentially "one of the inputs") to the idle control system: at low rpm as you put more strain on the system to turn the wheels (as in parking) it helps maintains the idle "quality". At higher rpm (higher pressure due to higher pump flow) it PROBABLY also sends a signal that reduces the boost felt at the rack...
At least that is what I surmise. You may want to check the part number on your replacement rack & pinion. Cheers!
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' 92 SVX @ 185K ' 91 420SEL @ 223K! ' 88 420SEL I. @ 178K (what a buy!) ' 87 F250 @ 180K ' 93 ZX-11D @ 29K ' 93 SC400 @ 93K 2001 Valkyrie Interstate @ 6.6K (Brynhild) Y2K NightHawk 250 @ 1,500 miles ' 88 420SEL II. @ 208K '85 F150 @ 135K |
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