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17-06-2014, 06:34 PM
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Fordluva
Join Date: Dec 2010
Posts: 105
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Hi all got a weird one, my au2 xr8 200kw ute is making a scraping/squealing noise from what seems the rear of the motor when you try to accelerate when the motors cold. At the same time as the scraping noise the motor cuts out which makes you back off and it then instantly comes back to life as normal. Once its completely warmed up its fine. You would swear the flywheel was scraping but what's the cut out cause.????
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18-06-2014, 04:57 AM
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#2 | ||
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Regular Member
Join Date: Apr 2008
Posts: 377
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99 percent sure it's the cam synchroniser where the dizzy used to be
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18-06-2014, 11:41 AM
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#3 | ||
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Fordluva
Join Date: Dec 2010
Posts: 105
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Making that much noise and cutting the spark?
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21-06-2014, 04:57 PM
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#4 | ||
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Fordluva
Join Date: Dec 2010
Posts: 105
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Checked the cps and found oil in the sensor housing and a fair amount of side play,amazing how much noise it can make. While on the subject can any power/economy gains be made from moving the cps forward or back a bit. Has anyone tried this?
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21-06-2014, 05:08 PM
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#5 | ||
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Banned
Join Date: Mar 2010
Location: PERTH. WA
Posts: 4,697
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The ignition timing isnt adjustable on an au,you need a tune to do that through the ecu afaik.
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21-06-2014, 05:38 PM
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#6 | ||
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Fordluva
Join Date: Dec 2010
Posts: 105
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Don't worry guys, just read the cps just tells the computer if #1 is on the compression or exhaust stroke, mostly for start up ,moving it makes no difference. Google does it again!
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22-06-2014, 05:41 PM
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#7 | ||
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Fordluva
Join Date: Dec 2010
Posts: 105
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I just ordered a Dorman cam sensor and now I read they are a Chinese pos.Anyone used one of these before?
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22-06-2014, 09:16 PM
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#8 | |||
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5.6L x 2 pilot
  
Join Date: Dec 2009
Location: Canbra
Posts: 15,052
 
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Quote:
Before you pull your old sync, take the plastic cap off, turn your crank to where the solitary finger is going past the sensor in the plastic cap. That way you know your on the correct stroke of TDC. Here is what it looks like with the cap removed at the correct TDC (apologies for the state of the rest of the engine, but you can at least see No 1 is TDC):  Hope that helps. Cheers Stu
__________________
2002 AU II LTD 5.6L 342ci T3 Short, AFR165 heads, Comp XE270HR-12 Cam, Brembo 4/4s(355/330), T3 5 spokes, LC-1 wideband, Whiteline HD swaybars, TCE 3K Hi Stall, PWR Auto Trans Cooler, Koni shocks, King Low Springs, Hurricane headers, 100 cpsi cats, Twin 2.5" exhaust. Quarter Mile: 13.73 @ 105.86mph Runner Up NA/DA to BF Fairlane/LTD Geelong AFD 2024  2002 XR8 pursuit 250 Custom twin 2.5" exhaust w Herrod modifed extractors, Tuned with Moates QH
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XR8 Wierd Problem
Linear Mode
