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Forum: Hatteras Tech Talk

Techinical Discussion & Hatteras Related Topics Only

  1. Onan Exhaust Manifold Gasket Sealant

    I’ve had my heat exchanger serviced for my MDL4 Onan generator and now it’s time to reinstall. I was given the gaskets that are necessary between the block and the exchange (4 of them), as well as the gasket between the heat exchanger and the riser. The original gasket between the block and the...

    Started by pmurphy‎, 01-16-2024 11:02 AM
    • Replies: 8
    • Views: 258
    01-18-2024, 06:25 PM Go to last post
  2. Starting Batteries for 32v - DC180-8'?

    Looking to build a new starting bank for a 4-71 DD. Existing battery setup is one bank having four 8v195's that is connected to start both engines. I'd prefer not to use the large 8v195's in the new bank and have found a battery recommended by DC Battery Specialists in Miami. I've used this...

    Started by zigzag930‎, 09-15-2020 07:07 PM
    3 Pages
    1 2 3
    • Replies: 22
    • Views: 1,723
    01-18-2024, 03:52 PM Go to last post
  3. Trim Tab Missing

    Have a 1978 53MY and last week the diver cleaning the bottom noticed the starboard trim tab was missing. Said the actuator was still there (not sure of condition) but the tab itself was gone. Had taken a two day trip the week before (diver said tab was present before we departed) and am pretty...

    Started by jnuttall‎, 01-17-2024 01:23 PM
    • Replies: 2
    • Views: 167
    01-17-2024, 07:41 PM Go to last post
  4. Tier 4 emission standards DEF is definitely in our future

    Talking to the engine guys at the Stuart boat show everybody is really worried about the tier 4 standard which was supposed to take place this year. Viking has hired a team of lawyers to try to fight it. So far they got a delay. According to the Cat and Scandia guys the emission equipment will...

    Started by rsmith‎, 01-16-2024 09:01 AM
    2 Pages
    1 2
    • Replies: 16
    • Views: 496
    01-17-2024, 07:22 PM Go to last post
  5. Bilge Water Route/Flow Path

    On the 44 TC (1970) what is the intended route from bilge to bilge and final pump destination. Myb forward bilge pump under galley floor is always dry so no issues there. The bilges outboard of fresh water tank don't go to a pump location. The pvc waterway under the engine bilges are free and...

    Started by MaloloKW‎, 01-17-2024 12:09 PM
    • Replies: 3
    • Views: 173
    01-17-2024, 12:49 PM Go to last post
  6. Fuel burn 45’ vs 53’

    Feel funny asking such a question. But i have an opportunity to purchase either a 53’ or a 45’ both are early 70s models in excellent shape for their vintage. The 53’ has original 12v71N 3yrs since MOH and the 45’ has 6v92TA (installed new in 2002) allegedly 800hrs since last major in 2013. I run...

    Started by Hookedup2407‎, 01-01-2024 06:37 PM
    4 Pages
    1 2 3 ... 4
    • Replies: 37
    • Views: 1,677
    01-16-2024, 09:42 AM Go to last post
  7. SW Temp Sender?Gauge Riddle

    New dual station sender installed on both Engines... ENGINE BLOCK HEATERS HAVE BEEN ON... Port gauges preform as expected on both pilothouse and flybridge. Upon switching ignition on, both slowly rise to around 130° and return to zero when switched off. Starboard (I might add that they have...

    Started by skinners1‎, 01-10-2024 03:18 PM
    • Replies: 4
    • Views: 249
    01-15-2024, 08:23 PM Go to last post
  8. 45’ 1970 prop suggestions

    Anyone know how much a 1970 45’ weighs fully rigged with 6v92s 550hp? I just had one fail sea trial. I’m guessing she may have been over propped 26” x 30 4 blades were on her.. & she would not turn up. Twin disc 1.71:1 gears. Doing a basic search i see 24000lbs for a 45 but that seems light.. ...

    Started by Hookedup2407‎, 01-14-2024 07:33 PM
    • Replies: 6
    • Views: 228
    01-15-2024, 06:01 PM Go to last post
  9. 12V 71 secondary fuel filter question

    Hi, I am new to the diesel side and trying to change out the secondary filter on our 12v 71. I believe its a canister twist on typ but can't find a part numnber of any type on the outside. Does anybody know which size it uses? Trying to avoid opening it then going again to the shop which is a...

    Started by JessStanley‎, 01-15-2024 08:26 AM
    • Replies: 0
    • Views: 103
    01-15-2024, 08:26 AM Go to last post
  10. Pilot house Door Screens

    Ok, I’m losing my mind. Recently, someone’s post asked for Hatteras MY pilot house door screen options.I committed to poor pics of the ones my master seamstress wife designed and constructed. Can’t find the post, so I’m posting pics for what it’s worth. Maybe it was another forum….. John...

    Started by divert00‎, 01-14-2024 06:10 PM
    • Replies: 0
    • Views: 136
    01-14-2024, 06:10 PM Go to last post
  11. Conversion to LED LIGHTING

    I have a 97' Hatteras 50. Looking to change lighting to LED. Need some help or advice on what is involved. I take it you can't just switch out bulbs? I have 50 amp service. Thanks!

    Started by sunsetacres1318‎, 01-13-2024 11:51 AM
    • Replies: 8
    • Views: 282
    01-14-2024, 11:07 AM Go to last post
  12. Leaking slider windows

    Hi All have a 77 48LRC and have a few leaking sliders. looking for a place near New Bern, NC to call and either repair or replace, looking for options. Tom

    Started by hardshell46‎, 01-11-2024 01:27 PM
    • Replies: 0
    • Views: 130
    01-11-2024, 01:27 PM Go to last post
  13. Measuring Exhaust Back Pressure

    I bought a boat with a Northern Lights NL753k genny a couple years back. Genny starts easily and runs well. No real complaints other than the fact that she smokes quite a bit. Dark gray exhaust smoke. Per the trouble shooting section of the manual, possible causes are: Clogged or dirty air...

    Started by Bob Bradley‎, 12-13-2023 10:39 AM
    3 Pages
    1 2 3
    • Replies: 21
    • Views: 852
    01-10-2024, 09:20 PM Go to last post
  14. Thru hull size

    Does anyone know the thru hull size on a 53 MY with 8-71TI’s. Thanks in advance

    Started by Scarlett‎, 01-10-2024 02:17 PM
    • Replies: 1
    • Views: 144
    01-10-2024, 04:36 PM Go to last post
  15. Main engine vent covers

    In purchasing a 67’ cockpit MY, my surveyor suggested that when the vessel is resting in its slip to cover from the inside of the engine room the vents on each side. He suggested it is like storing your vehicles in your garage with the roll up doors always open; that allows dust and other similar...

    Started by Big Chief‎, 12-31-2023 07:42 PM
    2 Pages
    1 2
    • Replies: 18
    • Views: 896
    01-10-2024, 01:31 PM Go to last post
  16. fuel switching

    I am trying to sort out the proper way to switch the tanks. I see there is a primer switch for each engine. Do I switch and prime? Do the engine have to be ruining or off? It is a 52' cpmy with Caterpillar 3406e. Thanks for any assistance.

    Started by rckc2417‎, 01-08-2024 09:13 AM
    fuel, prime, switching
    • Replies: 2
    • Views: 274
    01-10-2024, 02:59 AM Go to last post
  17. Bulkhead plumbing fittings

    Thought I'd share these custom bulkhead fittings I made. I wanted windshield washers on my revamped lower helm triple wiper system and nothing was found to transition through the 7/8" or so of the front window area so I made them. They are 3/4" dia.bronze bolts cut to the correct length,...

    Started by bostonhatteras‎, 01-09-2024 06:02 PM
    • Replies: 4
    • Views: 224
    01-09-2024, 07:57 PM Go to last post
  18. New owner

    I recently purchased 1989 41 sport fish model. 550hp 692's, looking for honest speed from others, as this boat was lost in time for twelve years. The inside looks exceptional, outside ,as one would expect cleaned-up but ready for paint. Very strong built boat and looking forward to it. I was able...

    Started by Dominion‎, 12-04-2023 01:17 PM
    4 Pages
    1 2 3 ... 4
    • Replies: 31
    • Views: 2,060
    01-09-2024, 08:34 AM Go to last post
  19. Second generator

    This is kind of a generator question. I'm still searching the for the next boat and watching the market cool off. One boat has had its second generator removed during a refit. My question is are two gensets required on a 60'ish boat? I don't intend to being at anchor for long extended times and am...

    Started by whoover‎, 01-06-2024 07:42 AM
    2 Pages
    1 2
    • Replies: 14
    • Views: 713
    01-08-2024, 06:43 PM Go to last post
  20. Boarding stairs

    We ve been stern in for the last few years boarding thru the transom stairs but may start going bow in again for the view and to do work on the port side of the boat (paint, rub rail etc) So I decided to build a set of boarding stairs, similar to Marquipt, Tracy etc The frames are 1” heavy...

    Started by Pascal‎, 01-05-2024 12:34 PM
    • Replies: 6
    • Views: 385
    01-08-2024, 12:31 AM Go to last post

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