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#1
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Compression test on the original engine or the replacement you mentioned?
__________________
2001 X5 Sport 3.0/5-speed 1998 318ti/5-speed 1988 735i/5-speed 1984 528e/5-speed (soon to be M20B25-powered 525i!) |
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#2
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The original, used isn't an option I'm allowed. So says warranty.
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#3
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If you going thru the trouble of having a compression test, might as well go with a leak down test at the same time.
__________________
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 |
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#4
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Compression test passed exceedingly well. Dealer to contact warranty on the 22nd.
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#5
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Should I do a leak down test still?
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#6
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If all the cylinders have good compression a leak down test is not necessary. If a cylinder or a couple of cylinders had bad compression, a leak down test can provide some answers as to what is probably the problem. If you hear air hissing through the exhaust, then your exhaust valve is not sealing, air hissing through the intake manifold then your intake valve is not sealing and air hissing in the crankcase then the rings are not sealing.
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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 |
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#7
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No.
IF compression is good and even across all cylinders there are no leaks to locate.
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Previously owned: '03 4.6iS Dinan Supercharged |
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#8
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valve seal gaskets? that's what I ended up replacing, Loss of power, smoking, loss of mileage. Done while towing a loaded trailer over the Rockies.
But I'd do the leak down test. Time to find out exactly what's going wrong. So important to have a great dealer or indie to rely on. Sounds like yours is interested in only what's good for him..., not you.
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Mark _______________________________2001 X5 4.4i topaz blue/sand Sport, complete Dinan S2 , hitch, V1, tint, BSW Stage 1, Alpine INA-W910BT___________ Life is not fair! You can't protect people from their own stupidity! Laughter makes life worth living |
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#9
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Still waiting on Bema (dealer) to get a valve stem tool. Telling me they haven't found one yet and also don't know if it's them, me, or warranty paying for the tool. Anybody know of any place in Edmonton or Calgary that's got at least some kind of knowledge or experience with this procedure. My patience is fading.
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#10
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Need to find a Canadian service place that has done valve stem seals before, I called every shop in Saskatoon that works on BMW's and nobody has a clue how to do such work.
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