Maybe new engine time…

Home 2024 Forums Opening Section Maintenance Issues Maybe new engine time…

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  • #85264

    Well, my Osh plans just got shot. Returned home today from an Alaska cruise to a message from my mechanic – fairly large case crack. This is on the older of my two engines and I’ve already repaired a crack in it once (different location). I’m not exactly confident in this case now and am seriously thinking about a new motor instead of another repair.

    So, what are my options? RAM at $56k per the website, or Continental looks to be in the mid $50s for a rebuilt engine as well and I don’t think I will get any grief from them on a case.

    Pros/cons of each?

    Any clue what continental’s turnaround time is?

    Other options/thoughts? I would like to get the airplane flying as soon as practical (Osh isn’t going to happen) so an overhaul is probably out…

    Also, I don suppose anyone is heading from the upstate ny area to Osh Wednesday to Sunday are they?!

    Robert

    #106473

    And just after you posted how you were hoping to go past TBO… 🙁

    I’d look seriously at a Continental reman at this point. I had my engines done by Zephyr in Florida, and they did great work. I also don’t know if they do GTSIOs, but if I had a case crack I would’ve done a reman. My cases were new at the last overhaul, so they’re only 2400 hour cases now, 7-stud.

    You said upstate NY so I’m guessing you’re not in Addison, but I have a friend flying up from Addison in his T206H who might have room.

    #106475

    IO-520’s were 6 weeks from TCM (a month ago)

    #106476
    quote TDUPUIS:

    And just after you posted how you were hoping to go past TBO… 🙁

    Yeah, I’m quite aware of the irony… 😥

    Robert

    #106477

    I am happy with my factory new GTSIOs – now 2.5 years and 300 hours. One starter adapter was bad (gear rubbing on the housing) – but that was smoothly covered under warranty.

    When I was investigating options for my double engine swap (scheduled), I was scared of Ram engines because there is no way to know how many hours are on the cases. I figured that low-time cases must be a pretty small percentage of the core pool at this stage.

    Will CMI give you a new case on a reman? Give James Towle a call at CMI.

    If you can’t get a new case on a reman, in the grand scheme of 421C expenses, the upcharge from reman to new did not seem exorbitant.

    Sorry for your downtime.

    #106478

    Thanks Dan – I just called and left him a message.

    I’d prefer a Continental engine as well (likely reman) instead of RAM… Prices seem the same, but I’m worried about lead time. If it’s 6 weeks from Continental or 3 days from RAM that may skew my decision.

    I’ll keep everyone updated.

    Robert

    #106479

    6 weeks vs 3 days feels like a lot now, especially with travel planned, but is relatively small compared to the 10+ years the engine will likely live. Of course, if you have important travel planned, understood that compromises must be made sometimes.

    #106480
    sworley
    Participant

      What is the significance of going from a RAM engine to a factory in a 421? Does the green arc of the engine shrink to 32.5″? What is the significance of that if anything?

      #106481

      The Ram 35″ climb STC is a paperwork-only STC: nothing is changed other than the green arc on the gauge.

      I have the 35″ STC and it is based on the airframe serial #; i.e. I did not need a new STC from Ram when I switched from my old CMI remans to my factory new engines.

      #106482

      Thanks for help guys – I ended up going with Continental. They have been great supporters of the Twin Cessna fleet recently, and I enjoyed spending time with them in Mobile when we did the factory tour.

      $54,176 for a reman without an alternator (mine is relatively new) with a 4 week lead time. I looked at RAM but I didn’t have a great experience with them when I did the engine on my 210 and I suspect they would hit me with a core charge. I have in writing from Continental that they know about the crack and there will be no extra charges.

      James was great to work with.

      On the STC for 35″: I don’t have the STC, but routinely climb at 35″. There’s no restriction from doing so, and in fact the engine’s rated to run a full power continuously. I’m pretty sure the airplane doesn’t know that there’s extra green paint on the MP gauge…

      Now I just need to figure out Osh… Anyone coming back towards Dallas on Sunday?!

      Robert

      #106485
      quote RCJOHNSON:

      On the STC for 35″: I don’t have the STC, but routinely climb at 35″. There’s no restriction from doing so, and in fact the engine’s rated to run a full power continuously. I’m pretty sure the airplane doesn’t know that there’s extra green paint on the MP gauge…

      You clearly never heard about this B-17 pilot who climbed outside of the green arc:

      (I couldn’t agree with you more)

      #106489

      I know someone with 2 factory reman GTSIO engines with 5-600 hours on them. I think they can be bought for 20-25k outright with accessories. Let me know if your interested.

      #106511
      rwelsh
      Participant

        Robert, Darryl Greenamyer has 2 GTSIO engines that supposedly had a prop strike. $5 K each complete with all accessories including turbo. Email address below.
        george13d@verizon.net

        #106513

        Hmm… at $5k each, they’d look good on the 310… 😀

        #106514
        quote RWELSH:

        Robert, Darryl Greenamyer has 2 GTSIO engines that supposedly had a prop strike. $5 K each complete with all accessories including turbo. Email address below.
        george13d@verizon.net

        Thanks Dick and Sandy.

        I’ve gone ahead and ordered the new engine from Continental, but have also contacted Darryl – Curious about those engines and may take a look to have one as a “spare”.

        Robert

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