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  1. J

    1975 Cessna 172M - Lycoming O-320-E2D - Calling all A&P Types

    After reviewing previous log data and realizing we may have set the carb temp sensor to the wrong type, we programmed it to the type we thought it was supposed to be, only to realize we had it right the first time. Thus the carb temp on this particular flight is invalid. We've since corrected...
  2. J

    1975 Cessna 172M - Lycoming O-320-E2D - Calling all A&P Types

    Stewart Warner 8406E. I think it's the original cooler that came with the aircraft. Would have to look in the maintenance records to confirm.
  3. J

    1975 Cessna 172M - Lycoming O-320-E2D - Calling all A&P Types

    So as I've downloaded all of our engine data (we have the Garmin G3X Touch w/Engine Analyzer)...and yes the temp reading is accurate as (1) it's a new temperature sensor; (2) when the engine is off and at ambient temperature, it indicates that correctly; (3) we're getting the same indications...
  4. J

    Cessna Oil Temperature

    The Vernatherm controls a bypass path. When it heats up, it expands and blocks the bypass path, thereby diverting oil through the cooler. However, when it's below its spec'ed temperature, it shrinks, thereby opening a bypass path around the cooler. Oil then bypasses the cooler and stays in the...
  5. J

    1975 Cessna 172M - Lycoming O-320-E2D - Calling all A&P Types

    So why would Cessna replace the vernatherm with a viscosity valve as stated in the Cessna service manual? Why would they go backwards? This is the million dollar question.
  6. J

    1975 Cessna 172M - Lycoming O-320-E2D - Calling all A&P Types

    Yes...Lycoming O-320-E2D. Temp sensor is installed in the top of the oil filter housing. The notes regarding the change to a viscosity valve are on the parts breakdown for the full flow oil filter housing.
  7. J

    1975 Cessna 172M - Lycoming O-320-E2D - Calling all A&P Types

    Your aircraft is covered by the same service manual. If yours has a Vernatherm, but should have a viscosity valve instead, this may help you as well. Read on. Not yet. We'll get to that in a few. But first...here's what we know - The service manual states - Now...here's what we know about...
  8. J

    1975 Cessna 172M - Lycoming O-320-E2D - Calling all A&P Types

    Hi all. I posted a previous thread regarding high oil temps on a 1975 Cessna 172M with Lycoming O-320-E2D. Everything I've heard from the owner/operator - "It's always ran right up on the red line." "This year/model had oil temp issues." "I've been around this aircraft for many years even...
  9. J

    HIMS Special Issuance Timeline

    As I knew my 1st application would be deferred, I contacted AMCD to find out what I needed. They told me they couldn't tell me that until I started the application process and they received all of my paperwork from the AME. I was completely unaware of anything HIMS until they requested the...
  10. J

    HIMS Special Issuance Timeline

    Thanks all. Apparently there was a missing piece to the puzzle, and now I feel like I've wasted a month and a week. Here is where we are at currently. Beware - long read. I had my most recent HIMS follow up appointment with my HIMS AME on June 24th. At this appointment, he stated everything...
  11. J

    HIMS Special Issuance Timeline

    Are you saying 6 months from the time my sponsoring HIMS AME sends his report?
  12. J

    HIMS Special Issuance Timeline

    Same could be said for W100 Plus in the winter.
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