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compression test

  1. Aircooled Mechanical Tech
    I have a '73 Bay with the 1800 Type4 that idles OK and runs reasonably well on the flat but any sign of a hill and it complains. Stuttering on anything but full throttle and sometimes even then. Trying to figure out how to approach fixing it as there's no-one local that I would trust anymore. I...
  2. Aircooled Mechanical Tech
    Hi All, Been wondering why the bug wasn't running well at all and after some forum romping I decided to buy a compression tester. In order of 4 (130), 3 (115), 1 (120) & 2 (0!!!!). Ouch. I retested, checked it was seated properly, as far as I can tell it is but still 0 PSI :( I would have...
  3. Aircooled Mechanical Tech
    Doing my first compression test this weekend, and some advice suggests disconnecting the wire from the coil to the distributor, but only one (Rob and Dave) suggest grounding it. Grounding it seems to make sense to me - I don't really want sparks flying about (surely the open cyliners will be...
  4. Aircooled Mechanical Tech
    Hi there Just turned my engine over to test the compression in the cylinders. It hasn't been run for over four years and wasn't sure how well it was before then. Turned it over a few times by hand over the last couple of days and dripped a little oil into the pistons, removed the plugs and...
  5. Aircooled Mechanical Tech
    hi everybodyyy..(1972 1300tp bug)i stripped the top end of my engine . (was going to upgrade to 1600,but the secondhand parts were broken) so rebuilt old parts back. the first start seemed fine , but 2miles down the road made a couple of pops and lost power and cut out . got it home 4 hours...
  6. Aircooled Mechanical Tech
    I have a 1600 T1... can anyone please tell me about compression tests What should the compression be? Are there any influencing factors? It's a non running engine ATM :( Thanks very much
  7. Aircooled Mechanical Tech
    I have few questions about compression test. I think cold engine has less pressure that hot engine. 1) Should it be done with cold engine or warmed up engine? 2) How hot should it be for it? 5 minutes of idling or normal operating temperature, etc.? 3) Removing spark plugs when heads are warm...
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