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compression

  1. 2003 e46 318i no compression on no 3

    BMW 3 Series Forum - Technical Talk on the BMW E46
    Hi after some help after usual tensioner going on 318i there is no compression on no 3, not sure if it's valves or the timing motor already bought head gasket and 4 valves ages ago, got time to do it now, have the tools for it as well, just wondering if someone has had same problem. Thanks Adam
  2. 318i compression test results

    BMW 3 Series Forum - Technical Talk on the BMW E46
    hey guys, my car has been consuming a liter of oil every 1000 kms. smoke comes out every now and then from the pipe but not consistent. i'm assuming it's from the valve seals so we did a compression test first. methodology: used a cheap engine compression tester kit. removed fuel pump fuse...
  3. E60 525d compression problem

    BMW 5 Series - Tech Talk For All Gen Of 5 Series
    Cylinders 4&6 smooth running correctional values out of tolerance, I removed all glow plugs and disconnected fuel pump, tested each cylinder with full battery and 5 cranks in each and all cylinders came up 150 (+ or - 5) psi. I'm either doing test wrong or all cylinders holding low pressure...
  4. e91 N53 325i - lack of compression on Cylinder 6

    BMW 3 Series - Tech Talk For All Gen Of 3 Series
    So, need a bit of help diagnosing an issue with a car I recently purchased. In effect, I did the usual, bought it on eBay, late at night, after a few glasses of wine. Naturally, I did this unseen, knowing full well that the car had a fairly obvious misfire and was using a bit of oil. Previous...
  5. 2003 E46 330D (M57N) - compression test results

    BMW 3 Series Forum - Technical Talk on the BMW E46
    Hi All I posted recently about black smoke, loss of power, and INPA selective mass adjustment showing cylinders 5&6 over fuelling - I suspected a valve problem. Not so sure about that now. I did a compression test on a cold engine, but unfortunately snapped the no.4 glow plug. No problem...
  6. My 323i compression results. How do they look ??

    BMW 3 Series Forum - Technical Talk on the BMW E21
    I’ve got a 1997 323i on 84k. Decided to do a compression check today. Has anyone else got results to compare to or know if these are ok? Test 1. Cyl 1 - 195 Cyl 2 - 205 Cyl 3 - 200 Cyl 4 - 195 Cyl 5 - 200 Cyl 6 - 200 Test 2. Cyl 1 - 198 Cyl 2 - 210 Cyl 3 - 202 Cyl 4 - 200 Cyl 5 - 210 Cyl...
  7. E46 320 Low Compression

    BMW Engine Conversions
    Hi guys, I'm having problems starting my car, it's dumping coolant from the bottom, middle. I've also done a compression test, piston 1 and 6 have about 75psi and 2,3,4,5 have next to none. Any help on what this may be is highly appreciated.
  8. N53 Engine Issues - miss-fire/compression?

    BMW 3 Series - Tech Talk For All Gen Of 3 Series
    Hi I am hoping someone can offer an insight into the issues I have with my 2008 e92 330i (N53). Bought the car a week ago from an independent garage (3 months warranty). Started miss-firing after a few days (circa 300 miles smooth driving before this - one miss-fire and EML but ignition off...
  9. BMW E60 535d Compression

    BMW 5 Series - Tech Talk For All Gen Of 5 Series
    Hello, I just wanted to know what compression should be in every cylinder for BMW E60 535d year 2008. How many psi or bar. Thanks in advance.
  10. Low compression on 1 cylinder e92 m3

    BMW 3 Series - Tech Talk For All Gen Of 3 Series
    Hello As tittle really. Just wondering if I can pin point what the fault is before stripping down the engine. There is low compression on one cylinder. It's about 90 psi on one and the rest are 120psi and equal. There is no obvious Miss fire and it seems to run smoothly. Also, no fault codes...
  11. E46 N42 Engine Leaking Vacuum Pump-would this cause a weaker compression in one cylinder?

    BMW 3 Series Forum - Technical Talk on the BMW E46
    Hi All, Hope people are well!. As title suggests is this true or would this have nothing to do with the weaker compression?. Thanks Jason
  12. 318i e91 losing compression

    BMW 3 Series - Tech Talk For All Gen Of 3 Series
    Starts fine hot or cold idles fine. If given a hard rev it will rev as hard as you want and you can hold it at high revs. However after a good rev, on the over run it always stalls and when you try to restart there is no compression at all. After a min or two if you try again it sounds like some...
  13. 2002 E46 320td Compact - Crankcase Compression

    BMW 3 Series Forum - Technical Talk on the BMW E46
    Hello, I bought a right lemon of a Compact last October. The turbo started rattling the day after I bought it and let go four days later. I drove it home 10 miles with a blown turbo, stopping to buy a gallon of oil which I had to pour in after six miles. Half a mile from home it was knocking...
  14. 318i E46 N42 Compression jumping up and down. Timing problem?

    BMW 3 Series Forum - Technical Talk on the BMW E46
    My car is 2003 318i e46 N42. Car was driven well no problem at all, and one day wake up in the morning and it wont start. It cranked over but wont fire up. I check the spark OK, injector pulse and fuel pressure ok, but the compression is not good and it quite weird to me hope someone can explain...
  15. N42 Low compression on 3rd cylinder

    BMW 3 Series Forum - Technical Talk on the BMW E46
    tried installing a catch can on the n42 but after having it installed the engine squealed like metal on metal contact after a few seconds i was trying to remedy the oil loss with increased vacuum just like you can on the 6 cylinder engines after that i released the vacuum and started the car...
  16. N46 engine compression test

    BMW 3 Series Forum - Technical Talk on the BMW E46
    Hi everyone. Im looking to check compressions on each cylinder. Ive had a look on ebay for the correct kit with no look. Can anyone tell me is there a specific size/kit i need to get an accurate result. Also what should each cyliner be reading? 170psi? Thanks Mark Sent from my GT-I9505...
  17. E90 330i N52 Compression Values

    BMW 3 Series - Tech Talk For All Gen Of 3 Series
    Does anyone have the compression numbers that BMW would expect of an N52 330i? Alternatively would owners mind posting theirs? I got 140's across the board, happy they are even, just want to know what's expected. This isn't a request for help as such - more general interest.
  18. No compression on Cyl6!?

    BMW 5 Series - Tech Talk For All Gen Of 5 Series
    Hi guys, I'm in a bit of a rut. I was driving my car one day, then when I slowed down & stopped for a toll bridge, my engine was heavily misfiring, & smoking heavily from the exhausts. I took it to an injection specialist to get the injectors tested, who took the inlet manifold off & said...
  19. E36 318iS M44 compression test

    BMW 3 Series Forum - Technical Talk on the BMW E21
    Hi All Been doing some investigation on a lumpy idle issue I'm having. http://www.bimmerforums.co.uk/forum/f17/e36-318is-m44-coupe-lumpy-idle-t407873/ As a bit of an FYI I carried out a compression test and all cylinders showed 230/240 PSI (Depending how you read the gauge) Main thing is all...
  20. Bmw 535d compression result?

    BMW 5 Series - Tech Talk For All Gen Of 5 Series
    Hi guys and girls Does anyone know what the compression should be on a bmw 535d 272hp engine? My results are Cyl 1 - 330 psi Cyl 2 - 370 psi Cyl 3 - 350 psi Cyl 4 - 350 psi Cyl 5 - 360 psi Cyl 6 - 320 psi This is tested from cold. Hopefully someone can shed some light on this :) Thanks all
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