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  1. dorr

    78 Mainship 34- Replacement for Perkins 6.3544 Turbo Unit

    Unfortunately, the turbo unit on our '78 Mainship 34 Perkins Range 4 Series 6.3544 engine has failed and the shop doing the work up here in the Seattle area can not find any Perkins replacement parts. They are looking at something from China as a replacement unit but don't have those details as...
  2. dorr

    Our 34 classic maintenance & upgrades

    Yeah, 2 owners back out here on Lopez was a retired coast guard guy and he really did all the major mods I believe. Very detailed wiring diagrams, number coded wiring, and manuals for every single system in 3-ring binders! Honestly, were very new to this kind of boat and still learning all the...
  3. dorr

    Our 34 classic maintenance & upgrades

    Wow, just looking at your post thread regarding your MS 34 engine removal project! Looks like quite a job for sure. Sure hope our engine issue does not come to pulling the engine. Just purchased the boat last Oct with only 285 hrs on the rebuilt engine. Also interesting to see how the engine...
  4. dorr

    1978 Mainship 34 - throttle control box replacement part

    Thanks. I think we'll probably replace units with new ones and new cables as well....if we have any $$ left in the bank account after engine issue is fixed. Doug
  5. dorr

    1978 Mainship 34 - throttle control box replacement part

    Engine turns over just fine and seems to run OK (no knocking), but it suddenly started burning a lot of oil the last couple times out. Oil pressure dropped from typical 50-60ps to only 20psi. Oil blobs on the water at the exhaust and heavy smoke out the exhaust at >1000 rpms. Oil on dipsticks...
  6. dorr

    1978 Mainship 34 - throttle control box replacement part

    Awesome, thank you. We also just had engine issue...hopefully not a catastrophic failure. Fingers crossed!
  7. dorr

    1978 Mainship 34 - throttle control box replacement part

    Stargazer is headed to the shop mid-Oct for repair of an engine oil issue that cropped up the same day as the control failure (when it rains it pours!). So depending on engine issue, will decide on what to do with control box. I'll reach out in mid- to late-Oct t to see where the control...
  8. dorr

    1978 Mainship 34 - throttle control box replacement part

    Thanks Shawn. I have no idea how it sheared off. We just purchased in Oct 2020 and only run 50 hrs since May. Used the fly bridge most of the season. Minimal pressure and it just went limp.. Boat is about to go on the hard for the winter so no big rush. Could use your old ones once your...
  9. dorr

    1978 Mainship 34 - throttle control box replacement part

    Had the toothed metal mount pin on the fwd/rev throttle lever completely shear off yesterday, leaving me stuck in reverse near rocky shoreline. Glad we had the flybridge helm! Need to locate a replacement control box. Anyone know where to find such parts. I'm located in San Juan...
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