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  1. P

    CHALLENGER A/C not cooling

    Hi all, Any air con gurus out there? I have a Cat challenger 875c and have just replaced the compressor drier and TX valve. (Front seal of last compressor failed) after replacing the parts I vacuumed the system down and checked for any leaks. Once I knew the system was tight I put 2.2kg of...
  2. P

    3408 leak down test

    Hey guys, has anyone done a cylinder leak down test on an old 3408? Or a better way to test for a blown head gasket or cracked head?
    • PHDiesel
    • Thread
    • 3408 631d cat cylinder gasket head overheating scraper
    • Replies: 2
    • Forum: Scrapers
  3. P

    CAT 631D overheating

    Hey guys, Got a 631D with a 3408 engine overheating. Top radiator hose measures 110-120 degrees Celsius. But the bottom hose is back at 70 degrees Celsius. Engine is still overheating into the red and the top tank seems to be pressurised severely. Just had the radiator out and flushed at a...
    • PHDiesel
    • Thread
    • 3408 cat caterpillar overheating scraper
    • Replies: 6
    • Forum: Scrapers
  4. P

    A25c no gear select

    Hi all, Have a volvo A25C. Truck will not select any gears forward or reverse, and the alarm buzzer sounds when you try and select a gear. Contronic display unit also not working so am unable to retrieve a code Cheers
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