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#1
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Oil pump - Lifespan?
Being new to this engine, how long have your oil pumps lasted? I pulled my pump off today and not only do the seals look good, but both rotors look almost new. The engine has just over 60K on it, but it has been sitting for few years. I can seal the seals drying out, but would the pump go bad? I can see doing the preventative maintanance (and I will definately replace the seals) but it might be unnecessary to replace the pump. Opinions??
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Kent |
#2
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The filters are routinely replaced, but I have not heard much about the oil pumps needing to be replaced.
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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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According to Beav the oil pump shouldn't need to be replaced. Just the seals. Alot of people replace them (me included) when doing the timing belt but apparently it isn't necessary.
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Matt Locker Link 2015 BRZ Limited 6MT 92 Ebony LS-L ECUtune Stage2av1, Z32 MAF, 370cc injectors, TomsSVX intake, BontragerWorks 22mm RSB #003, HID Hi and Lo beams, OT endlink and bushing mods, PWR Aluminum radiator, Harvey's QC shift kit, 2.5" flowmaster 80 exhaust, 17" Michelin Pilot Sport A/S, Poly sway bar bushings, Slotted Bradi rotors, AFBeefcake powdercoated calipers, 97 grill, and a huge set of air horns. 300,000 miles and counting 92 Ebony LS-L. ecutune stage1v4, motorsport 1pc pulley. Garage Queen - sold to Dad in upstate NY 155,000 miles 19 Subaru Ascent Premium - -Hers !. 89 DL 4x4 little red wagon - a.k.a. The immortal suby. 275k R.I.P. |
#4
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Engine oil pumps have a excessive amount of capacity. It takes a lot of bearing clearance or other issue for them to not be able to keep up with demand.
There was a situation with Legacy or Loyale pumps in the past that caused them to push the front seal out and crate a leak, but as far as I know it was never an issue for the SVX. I suppose some dealer techs just remembered the problem and mindlessly decided the SVX was included in that TSB or maybe they just thought a leaking o-ring or seal was good enough excuse to hose the customer for a pump.
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ASE Certified Master Automotive Technician w/L1. ASE Certified Master Medium/Heavy Truck Technician. Certified EVT (Emergency Vehicle Technician) |
#5
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It's really nice to be a part of this site that has such technical expertise. I think I will just replace the o-ring and front main seal and put the rotors back and re-use my oil pump. When I get the engine up and running I'll know if I screwed up.
I've read about people using RTV when sealing their pumps (I cleaned some off today), but my semi-worthless Chilton's manual says to just use a gasket. What do you guys recommend? Seems like a small bead of RTV might be the way to go. Thanks
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Kent |
#6
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Subaru oil pumps (those not attached to Loyale's) are bullet proof. It's very rare we have to do one at the shop. My 95 SVX has the original oil pump with almost 160,000 miles now. My mom's 93 Legacy has the original oil pump with 140,000 miles. It is common to replace the crank seal though.
Dave |
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