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#1
07-06-2008, 02:05 PM
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Tech: Half the engine runs funny???
Well, there have been a couple people post that
Quote:
BUT I have recently encountered something similar, yet very different. This car had died due to bad gas killing the fuel pump... -Pump was replaced but it still ran very poorly. -I switched out all the injectors on the pass side (this was the side running poorly). -I pulled all the plugs and coils on this side and inspected them w/o any obvious issues. - I check cam timing which was dead on. - Pull the center cover to check the timing on the crank, which was normal - Inspected and tested the EGR At this point, I was very frustrated as there seemed to be no real issue. I continued to pine over this for a couple weeks. Finally I returned to the car fresh. Pulled the timing belt off and just started inspecting everything, Even pull the valve cover to be sure the cams were still in one piece and that they were in time. Then I stumbled upon an idea... maybe the cam gear was the problem. Pulled the sprocket off the pass side exhaust cam to find....     I had to replace the exhaust cam and the timing belt sprocket.. I have a couple theories about how it happened but nothing is absolute... I hope this might help others Tom 
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#2
07-06-2008, 02:07 PM
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Re: Tech: Half the engine runs funny???
Thanks Tom. That is something that you would not figure would happen, but I guess it can.
__________________
. 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
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#3
07-06-2008, 02:25 PM
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Re: Tech: Half the engine runs funny???
but what do you suppose is to blame?
...bad hydrolic tensioner?
__________________
-Mike ECUTune2v7 - 4.11 5 Speed - Sprung 6 Puck Clutch - D&S Rotors - SS Brake & Clutch Lines - HKS Panel Filter - HeaderBack Exhaust -80GB Hard Drive - GroupN Engine Mounts -
 - some other "tricks"[SIGPIC][/SIGPIC] In progess: track down mystery noise <-identified, paint the new dash, get better pic Spring plans: Replace Trans - Integrate ECU with the carputer - Suspension - Go back to STI Filter - Paint? Maybe not - Next Oil change: Purolator L30165Member #995  | My Locker | My New LockerCatch you next at: ? Auto-X ?
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#4
07-06-2008, 02:50 PM
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Re: Tech: Half the engine runs funny???
Quote:
Considering that it happened the same time as the bad gas... -it could have been a sharp reaction to the gas the engine kicked and this happened... Also could have been the pulley bolt worked its way loose and caused it Also could have been that someone didn't torque the pulley correctly when doing a timing belt... Someone might not have lined it up properly when installing it too. Who knows right now Tom
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#5
07-06-2008, 03:30 PM
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Re: Tech: Half the engine runs funny???
Gee, all those things to go through almost sounded like a dealer was working on it!!
 Chances are that the sprocket wasn't lined up right and tightened down without the pin in the slot... breaking the pin loose and causing rust to take over. Went down hill from there. Hard to find because the symptoms that exist are caused by the computer switching over to the limp home mode. Out of time tough to analyze when timing marks all line up on all the pulleys. Keith
Last edited by kwren; 07-06-2008 at 03:33 PM.
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#7
07-06-2008, 03:51 PM
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Re: Tech: Half the engine runs funny???
Good find. Thank you Tom.
__________________
94 Bordeaux Pearl SVX Lsi B&M cooler with Aux ATF filter. QC Kit Plus 06 Sti Gold Wheels. SOLD 92 Claret WRX 5 speed ECUTune 1AV1 Gold STI Wheels & more. SOLD 92 Teal SVX LSL lowered with Konig. SOLD 92 Black SVX LSL with B&M cooler & Aux filter. Small Car Shift Kit. Gone 94 Red SVX L FWDwith LSL Leather Interior. SOLD 92 Teal SVX LSL....with B&M cooler & Aux filter. Small Car Shift Kit. SOLD 95 Polo Green........With Trany Problem. GONE Almost complete Rear Wheel Bearings Job with Pictures in my locker My Locker http://www.subaru-svx.net/photos/user.php?pearlm30
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#8
07-06-2008, 04:19 PM
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Re: Tech: Half the engine runs funny???
Quote:
 Christine (our posessed 93) has run great, and like crap off and on for a while now. I've had the timing belt cover off since the water pump and timing belt change because it sounded and acted like a slipped timing belt. Its a keyed pulley that Ive never sceen loose! 
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www.svxfiles.com The first SuperCharged SVX,  the first 4.44 gears, the first equal length headers, the first phenolic spacers, the first Class Glass fiberglass hood, the first with 4, 4.44s in his driveway Fiberglass Hood thread My locker 4.44 Swap link
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#10
07-07-2008, 01:30 AM
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Re: Tech: Half the engine runs funny???
Quote:
Mine went to the dealer for 22 days with no solution. They did change the transmission 3 times They kept thinking... Gee, must be a bad transmission, changed it and still only half the engine works... so get another transmission... Changed it again... Gee, must be a another bad transmission, changed it and still only half the engine works... so get another transmission... Got it home and found the real problem in a day... (I pray a lot) Bet OT saw my story but didn't relate to it? Anyway, he beat the heck out of my dealership. not 3 weeks for OT! Maybe this will help others look at this possibility when the marks line up. I even took the thing apart and checked the timing belt before I decided to let the dealer find the problem. Snow was coming... no heat in the garage so went for the free loaner 2008 Subaru. Keith
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