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Old 05-30-2015, 07:18 AM   #1
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Subaru eats Turbo's!!!

Off RV subject but this is getting crazy. My DW's 04 Subaru Baja with the turbo motor has been eating turbo's at the rate of 1 a year. The garage we use is run by a Subaru factory trained mechanic, and locally is refered to as the Subaru Guru. He is at his whit's ends with this issue too. It seems that ALL the failures have been caused by lack of lubrication of the bearings. We've removed the small oil screen that's in the oil supply banjo bolt ages ago, change oil every 3000mile and use a good quality semi synthetic oil, I've even tried using Z-Max in the oil twice a year. The last time we even drilled out the hole in the banjo bolts bigger to increase oil flow - NO LUCK the DW's Baja just ate another turbo. Anyone else having turbo issues with their Subaru's???
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Old 05-30-2015, 11:02 AM   #2
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I'm no subaru expert by any means,,, but if this was mine, "What is the oil pressure " of the engine ??(not just idle,, but under load) If its just an idiot light, put a gauge on it.... Also, what about the oil return from the turbo??? The oil has to have flow to And away from the turbo... Thats where I would start if it was mine.... Monkey
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Old 05-30-2015, 03:05 PM   #3
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Monkey has a point--bigger holes don't flow better with no/low flow...
Also, there must be a Subaru Baja owners forum???
Joe
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Old 05-30-2015, 03:15 PM   #4
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Subarus will eat turbos if there is not an idle/cooldown period, just like MH turbos. They get oil coked and die.
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Old 05-31-2015, 05:34 AM   #5
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What CampDaven said. Get an exhaust temp gauge and mount it (the thermo-couple )
in the exhaust to turbo line. Stay below 1300 F this is where the engine valves start to become so hot they no longer stay in one piece. On the other end have the exhaust temp of under 300 F for about 3 to 5 minutes before turning off the engine. Hope this helps. Joe
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Old 05-31-2015, 06:45 AM   #6
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That's just it when the DW gets to work she pulls into a parking ramp and takes a couple minutes to find a spot no high speeds here basically idling around looking for a spot. Then when she gets home, we live out on a country road no high speeds here wither then 5 mph down a 1/3 mile drive way, she pulls into the garage and lets it idle while she gets her stuff together. So there's no high revving of the turbo prior to shut off. What the mechanic has been finding is that by installing an after market turbo oil feed line all of these kids with the WRX cars and hopped up turbo guys are having great luck not eating turbos. So for $20. I ordered the line and we're going to try that. The mechanic has hooked a mechanical gauge to it and it has good oil pressure even when hot and at an idle so pressure's no issue. The oil return line is just a rubber hose that's been pulled each time and has always been clean and clear.
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