420 DA Thread

I have Ni-bral four blade 22" x 25" with a "L" cup. Top end I run 2,700rpm at 34mph
Thanks .... The diver said it was a little to muddy to see stuff.. Have to wait 2 weeks for marina.. I was topping out wot 27 to 28 knots. Do you know the shaft size also ? 1 3/4 ?
 
Final Cast off my foot / Leg ( 14 weeks ) and I'm back at it. better late than never!
Winter projects: for Wisconsin, Can't beat heated storage.
Cummins 1000 Hr Service.
Having bilge detailed while cooling is dismantled.
Touch up the Ceramic coat hull / deck.
Add new black dash panels w/ recess for the Axiom Screens.
Add new Raymarine card reader to dash for easy access.
Replace Helm seat w/ new Arrigoni S-3B Seat.
Raise the companion bench seat 3,1/2" and add storage below.
May have to Make Teak / Wood cockpit floor riser?
Paint Anchor chain at 10' intervals.
Replace all bronze bushings on hydraulic lift links.
Change out the Magnesium anodes Hull and Lift ( Fresh Water ).
Prep and Bottom paint!

Get some trips planned between projects.
 
Have any 420/44da owners ever add AC vents to the backrest of their companion helm seat, as seen in the below photo?
It’s a grainy photo, but it appears that the owner drilled into the hollow of the backrest and tied into the AC unit below to supply a flow of air directly into the cockpit seating area.
I saw a 420 for sale the other day that had a few vents across the top of the seat back that were the same size as the ones at the helm and am trying to find the listing again.
bump
 
While Cummins parts are coming in for 1000 hr service I swapped out the factory dash panels with F-P black panels w/ recess for the Axioms. Then added a remote card access. A buddy assisted in removing the OEM Helm Seat to add the new Helm seat by Arrigoni Helm Seats. More to come.
Dash.jpg
chair.jpg
Wheel.jpg
 
My Boat got surveyed today. Broker sent me these pics. The center bolt for the clutch was broken. I last used it Labor Day with no problems. Anyone happen to know the model?
This seems a bit odd anyone know what would cause it to break. I’m assuming drill and use an easy out to get the rest of the bolt out ?
5C8B447A-6E48-4879-B319-7BAB0356C552.jpeg

942765F2-2179-418A-BF2A-A84CC51241B1.jpeg
 
I believe that's a Lewmar Gen 2 Series 1000, and if so that would be a shaft. If I'm right...here's a diagram.
 
I believe that's a Lewmar, and if so that would be a shaft.
Hey Tom….. the parts manual isn’t any help. There is a shaft but I am thinking that the socket/bolt that broke screws into the top of the shaft. That’s what I’m hoping anyway
 
I hope you're right Craig. I edited my earlier response with the best diagram I could find.
 
My Boat got surveyed today. Broker sent me these pics. The center bolt for the clutch was broken. I last used it Labor Day with no problems. Anyone happen to know the model?
This seems a bit odd anyone know what would cause it to break. I’m assuming drill and use an easy out to get the rest of the bolt out ?View attachment 161522
View attachment 161523

You moving up??
 
I think I had the same snapped clutch nut a few years ago....I used a needle nose plier and was able to get it out with clockwise turning. I was dreading the fight but it ended up releasing much easier than I imagined.

Usually they snap because someone accidentally overtightened it thinking they were loosening it
 

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