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#1
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4.6is compression numbers
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#2
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you are looking for numbers around 150 with cyl to cyl +- a few PSI. It is the ones way off that is the worry. not so much as "how high are they"
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2005 X5 4.8IS The Blue ones are always FASTER.... Current Garage: 2005 X5 4.8is 2002 M5 TiSilver 2003 525iT 1998 528i Former Garage Stable Highlights 2004 325XiT Sport 1973 De Tomaso Pantera, L Model 1970 Dodge Challenger T/A 4 sp Alpine White 1970 Dodge Challenger T/A 4 sp GoManGo Green 1971 Dart Sport, “Dart Light” package 1969 Road Runner 383 1968 Ply Barracuda 340S FB Sea-foam Green |
#3
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okay cool. I drove the car back from BC to Reno not knowing the oil pickup was full of old timing guide debris and I pray that no damage was done to the motor. It runs great and has 152-155 compression on all cylinders still. I just get paranoid.
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#4
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Unless you were at 6,000 RPM the whole way you should be good.
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2005 X5 4.8IS The Blue ones are always FASTER.... Current Garage: 2005 X5 4.8is 2002 M5 TiSilver 2003 525iT 1998 528i Former Garage Stable Highlights 2004 325XiT Sport 1973 De Tomaso Pantera, L Model 1970 Dodge Challenger T/A 4 sp Alpine White 1970 Dodge Challenger T/A 4 sp GoManGo Green 1971 Dart Sport, “Dart Light” package 1969 Road Runner 383 1968 Ply Barracuda 340S FB Sea-foam Green |
#5
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I believe I had 200-210 on all
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2003 4.6, esotril blue, over 215,000KM. Every previous owner failed to keep up the vehicle maintenance. Restoration project. |
#6
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What unit of measure is the gauge?
Just like the speedometer on cars can be KPH or MPH, the reading will be diifferent.
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2006 Infiniti G35 2001 BMW 3.0I E53 X5 Build date 08/2000 SOLD Lotus Europa 1970 Destroyed by fire Lotus Europa 1970 S2 Renault Powered Lotus Type 52 1970 Twincam Webers Powered PORSCHE 911 Targa 1982 The Garage Queen Audi Avant donated to Kars for Kids BMW 525IT Sold Audi 4000CS Quattro Sold Jensen Healey Lotus Powered Sold Opel 1900 Sold Triumph Spitfire 1971 Sold Triumph Spitfire 1968 Sold Plymouth "Cuda" 340 Six pack SOLD |
#7
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Also, old school compression test was with carburetor throttle plates had to be wide open. Does one open the throttle body on the modern cars to do a test??
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Dave S. Northeast 2003 4.6is 2005 E53 4.4 2003 E39 Msport(a REAL ONE!) 1959 Fiat 600 |
#8
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Throttle body on newer cars is electronically controlled.
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2006 Infiniti G35 2001 BMW 3.0I E53 X5 Build date 08/2000 SOLD Lotus Europa 1970 Destroyed by fire Lotus Europa 1970 S2 Renault Powered Lotus Type 52 1970 Twincam Webers Powered PORSCHE 911 Targa 1982 The Garage Queen Audi Avant donated to Kars for Kids BMW 525IT Sold Audi 4000CS Quattro Sold Jensen Healey Lotus Powered Sold Opel 1900 Sold Triumph Spitfire 1971 Sold Triumph Spitfire 1968 Sold Plymouth "Cuda" 340 Six pack SOLD |
#9
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Quote:
Bimmerbreaker talked about having some oil starvation issues on his M62 that may have caused the rod bearings to fail. He mentioned "..sustained high-RPM driving uphill to Flagstaff " and bits of guide pcs as possible causes.
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2003 X5 4.6is Estoril Blue, acquired March 2018 2013 128i M Sport 6 MT Space Grey daily driver 2010 535xi 6 MT Barbera Red |
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