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Forum: Hatteras Tech Talk

Techinical Discussion & Hatteras Related Topics Only

  1. correct RPM for 671TI's

    Does anyone know what the correct no load and full load rpm's should be for 671ti"s. I purchased a 1976 42C last fall and it was way over propped and had huge 92-95 injectors. I ran speed /rpm curves and over the winter had the props reduced from 24 x 28 to 24 x 24 which is what the propeller folks...

    Started by hATTISFACTION‎, 08-16-2004 05:39 PM
    • Replies: 2
    • Views: 2,328
    08-17-2004, 09:17 AM Go to last post
  2. Watermakers

    Anyone have any experience with watermakers? Couldn't find anything in the archives. Sounds like a great device but I'm wondering if the manufacturers hype may somehow not quite represent the real world operation. I'd appreciate info re the actual operation/maintainance and recommendations for...

    Started by mikep996‎, 08-13-2004 12:34 PM
    • Replies: 4
    • Views: 2,278
    08-17-2004, 12:04 AM Go to last post
  3. Shaft turns in Neutral

    On my 53 1985 with Allison transmissions the shaft will turn slightly when in neutral. I can hold my hand on it with a rag and it will stop let go and it will turn again. I just had them serviced and this started, it looks as though it is way overfilled with oil would this cause the problem?...

    Started by Orion‎, 08-05-2004 11:49 AM
    • Replies: 2
    • Views: 2,280
    08-16-2004, 12:00 AM Go to last post
  4. Batter Use

    How long should I expect the 8D battery to last when on anchor without the generator running. The only house load is the Norcold ac/dc refrigerator. I believe the battery to be somewhat new and in good condition. It will currenlty last about 4-5 hours before it depletes to less than 50%. I...

    Started by coffeemaker‎, 08-05-2004 04:38 PM
    • Replies: 1
    • Views: 1,888
    08-15-2004, 11:53 PM Go to last post
  5. 53MY Replacement Refrigerator

    If you cut up the old refrigerator to get it out of the galley, does anyone know what brad and model you can get down the companion way so you don't have to cut the deck? Thanks Orion

    Started by Orion‎, 08-12-2004 02:42 PM
    • Replies: 4
    • Views: 2,500
    08-15-2004, 11:28 PM Go to last post
  6. Allison gear oil pressure

    My port gear pressure has been spiking randomly the last couple times out. It starts out just over 200psi, and slowly works its way up to 400+. If I throttle back, it drops somewhat, but still is around 375. Taking it in and out of gear a couple times will sometimes bring it back to the 200 - 225...

    Started by Bob Bradley‎, 08-09-2004 02:58 PM
    2 Pages
    1 2
    • Replies: 11
    • Views: 9,206
    08-13-2004, 04:52 PM Go to last post
  7. Other Discussion Forums

    I've got to say this is the best boating discussion group I have found on the web. I've yet to find another site which offers anything (except maybe www.yachtsurvey.com and boatdiesel.com ) close to the information offered here. Does anyone know of other sites which I should add to my...

    Started by Soffer‎, 08-12-2004 07:33 PM
    • Replies: 4
    • Views: 2,906
    08-13-2004, 03:12 PM Go to last post
  8. WHAT PROPS ARE RECOMMENDED FOR 32 SF

    I RECENTLY PURCHASED A 1983 32 EXPRESS- PRESENTLY THE WHEELS ARE A 22 X 23 WITH A CUP- I FEEL THE BOAT IS LUGGING AT 20 KNOTS AT 2400 RPM WITH THE CATS 3208T THE BOAT UNDER LOAD ONLY PRODUCES 2700RPM-IF ANY ONE HAS A SIMILAR BOAT PLEASE LET ME KNOW HOW YOURS PERFORMS AND IF IS JUST ME THANKS NICK

    Started by NIKGAL‎, 08-13-2004 12:16 PM
    • Replies: 0
    • Views: 1,648
    08-13-2004, 12:16 PM Go to last post
  9. Repower 1985 36C.

    Has anyone done a repower from gas to diesel on this vintage 36C? Thinking about 450 hp electronic Cat or 480 hp electronic Cummins. Too big? Any advice or experiences are appreciated.

    Started by Chrisibyl‎, 01-30-2004 06:35 PM
    2 Pages
    1 2
    • Replies: 15
    • Views: 5,085
    08-13-2004, 12:42 AM Go to last post
  10. Generator

    Having read much discussion about generator replacement I think I am going to replace my 7.5 KW Diesel Onan with a new kohler Model 8EOZD. Anyone interested in referring me to where I might get the best deal on one please advise. Will Shelton 800-786-1272

    Started by wshelton‎, 08-09-2004 01:21 PM
    2 Pages
    1 2
    • Replies: 14
    • Views: 4,595
    08-12-2004, 11:30 AM Go to last post
  11. Price of 41 Double cabin

    My dad and I are looking at a 1968 Hatteras 41 double cabin. Both engines and transmissions are repaired and have 2 hours since the repair.The engines are 6v53's. The railing is brand new and the top is brand new too. The boat hasn't been moved like in 1 1/2 years.On the inside is the problem. Its...

    Started by micky692002‎, 08-03-2004 04:48 PM
    • Replies: 3
    • Views: 2,119
    08-10-2004, 05:26 PM Go to last post
  12. Where is the hull number on a 1967 Hatteras?

    There is no HIN number on the transom. There are numbers on the stringer in the engine room. They are about 4" tall and have a filter bracket over them. There are 2 numbers. I think that one is the hull number, 5201. Ther other number looks like NET 18... (the rest of the number is covered). ...

    Started by DeeRow‎, 08-07-2004 01:05 AM
    • Replies: 6
    • Views: 3,222
    08-10-2004, 10:21 AM Go to last post
  13. Tachometer sending unit

    One of the electronic tachometers on my 671TI engines is not getting any signal. The electronic sender is fine but it appears that the sending mechanism that the electronic transmitter is attached to needs to be replaced. The spline is fine but the right angle gear that connects to the...

    Started by hATTISFACTION‎, 08-09-2004 08:15 PM
    • Replies: 1
    • Views: 3,029
    08-10-2004, 09:38 AM Go to last post
  14. 36c repower

    I am thinking about repowering my 76 36c from gas ( very old 454s) to diesel and I would just like to get an opinion on some price quotes I got from two yanmar dealers. I got a quote from a dealer in NY on LI for $70,000 for 315 yanmars w/trans and generator installed "barring any problems" with...

    Started by capthook505‎, 08-01-2004 09:11 PM
    • Replies: 5
    • Views: 2,545
    08-09-2004, 11:35 PM Go to last post
  15. 38 conv repower

    I have an early 38 Convertible with v53n's 210 hp and 2.1-1 warner gears. 24x22 4 blade props. thinking of changing the screamers out for a pair of 6-71 tI's 425-450 hp with twin discs 1.5-1 with 2" shafts and 24x22 4 bladers Anyone have experience with this combination? I don't want to go to...

    Started by ole38hatt‎, 08-08-2004 11:11 PM
    • Replies: 2
    • Views: 1,883
    08-09-2004, 09:10 PM Go to last post
  16. DD 6-71 Oil Leakage

    I know these engines have a history of leaking oil but I'm curious how much is normal. I seem to be losing about a gallon each for every 10 hours of run time. Engines have about 1300 hours on them. Much of the seepage is coming from around the dip stick with other minor losses at assorted...

    Started by GeorgeC‎, 08-09-2004 07:02 PM
    • Replies: 1
    • Views: 1,845
    08-09-2004, 07:45 PM Go to last post
  17. 37c repower+ performance

    I HAVE A 1978 37C WITH 310 HP.DETROITS TOP SPEED IS 17 TO 18 KTS. I AM CONSIDERING 3126 CATS RATED AT 420 HP. DOES ANYONE HAVE ANY INFO AS FAR AS PERFORMANCE ON THE HIGHER HP AND ON THE 310 DETROITS. THANKING YOU IN ADVANCE JIM

    Started by 37hatterascal‎, 07-26-2004 07:01 PM
    • Replies: 7
    • Views: 4,048
    08-09-2004, 04:40 AM Go to last post
  18. VT-903M engines

    I ahve VT-903M engines and TD 509 2:1 Gears 1975 42 C. I would like to talk to anyone with this configuration about HP ratings and CPL numbers . Mine were 400HP at 2600 RPM original. Previous owner had them set to 2800 RPM trying to get 425 hp--is this possible? Second, what are the corect prop...

    Started by rufuschamblee‎, 12-16-2003 12:53 PM
    • Replies: 7
    • Views: 12,093
    08-07-2004, 11:53 PM Go to last post
  19. should have done this 12 years ago...

    One of the problems with owning the same boat for 12 years or however long it's been is that you become blind to the kind of thing you might easily notice and correct on a new-to-you boat...here's a case in point: The deck hatches on older Hatts are laminated fiberglass- in the center, they are...

    Started by jim rosenthal‎, 08-04-2004 11:58 PM
    • Replies: 4
    • Views: 2,414
    08-07-2004, 04:35 AM Go to last post
  20. Engine Drop In

    I was wondering if anyone out there has a clue whether or not the 454's in my 1985 32FB would fit in place when I crane them in WITH the risers and elbows ect already on them? I took the engines out with the FWC system disassembled because I was nervous about it not coming out of the engine hatch...

    Started by Jackman‎, 08-05-2004 10:37 AM
    • Replies: 3
    • Views: 2,144
    08-06-2004, 09:22 PM Go to last post

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