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I have a 1980 43' Hatteras Double cabin with a 7.5 Onan. I have replaced far to many parts to name here. Most recent a new starter,raw water pump,exhaust manifold. just to name a few I think I have an issue with a push valve now and it will not start. Im done with it. Looking to replace...

Assistance please. I have an Onan 7.5 KW diesel generator. MDJE 3CR-2268-AD. Also have ser. # I am on the hunt for a Aqualift muffler. Mine has a pin hole leak so I guess it's shot. I am also looking for a start/stop solenoid. Any ideas who to contact for parts. Thank you, Will Shelton

I have a 1980 43' Hatt. Some very nice passenger pulled the emergency fire extinguisher and the engine room was filled with carbon dioxide. For those wondering, the system will shut down the engines. I live in Orange Beach, Al and was wondering where I might get the bottled refilled. It has...

Have 1980 43' Hatteras Motor Yacht with 7.5 Onan diesel genset. Need to find a used replacement unit or good place to buy new or used parts. Think I have voltage regulator problem. Any ideas. Will Shelton 901-680-7798

Please send advice. Have 1980 7.5 diesel Onan gen set. Did an oil change started up no problem. Went to selector switch to switch from house power to generator and no 120 V power. Shut off. Reset circuit beaker which was not tripped stated up, same issue. If you note the volt meter at the...

Hello All, I have DD 671Ns and am in need of replacing the large oil lines on the engines. There are two large lines, one attached to the top of the oil filter canister, or there about, and the other I am not sure. Both lines attach to what I believe is the oil cooler or pump near the bottom...

I have a Onan 7.5 KW Diesel power plant MDJE. It is mounted mid-ship with access to the main engine where the oil/fuel filters are etc. Starter would be against the bulkhead. I have an oil leak from the back side apparently. I cannot get to it without allot of effort. I have replaced all...

Have a 50' shore power cord that is a 50 AMP 125/240 volt. This is NOT to be confused with a 50 AMP 240 volt. Asking $125 and shipping on you. I also have two 50 AMP 125 volt male connectors to go at $40 each. Located in Orange Beach, AL

I have the original 12V chrome 10" Ray-Line/Jabsco search light on my 80 Mod. Hatt. The downstairs controls will allow the light to go up and down but will not travel side to side although you can hear a click when you move the toggle knob to control the light either way. I assume power is...

I think I have read info regarding my question here, however want to double check. I have twin DD 671Ns and Allison M20 gears I believe. I am going on about a 80 mile trip with a dock buddy that runs very slow. About 8 Knots at best. I have no problem running at this speed but would like to...

A few questions? I have a 7.5KW Onan diesel Mod MDJE. I have had a slight oil leak for years now when running this unit for 10 to 15 hrs. Just enough leakage to dampen an oil absorbent cloth. I found what I thought was the problem and replaced the gasket to the fuel pump which you could see...

Back to an existing problem. A short while ago I posted a thread about my 7.5 diesel Onan and got some good answers although by happenstance I solved the problem, albeit temporary. Foe those of you who recall my start switch would not turn the motor over and the Amp meter was pegged into the...

Now that I have fixed my generator I have wasted at least 2 of my 4 batteries running the inverter. I have DD 671 Ns and have four 12v. 8Ds I believe and have used the Interstate brand in the past. (cost mainly) Any advice would be appreciated. I think I will put these 2 new ones on the...

I have a 43 Hatt DC with a 7.5 Onan diesel genset. For some unknown reason the unit will not start. I have an electricl box on the unit that has a fuse, breaker, amp meter, pre-heat switch and a 3 way start/stop switch. I have the same switch set up on the eletrical panel in the saloon...

I have two problems should anyone care to advise me on. While cleaning the bilge I apparently noticed the Judson Synchronizer attached to the flywheel of one engine was loose. In an effort to tighten it it came off the place where it was screwed into the engine. This deal has a red rubber cap...

I am requesting advice as to the best value for a combination GPS/Chartplotter with addition to adding a depth sounder. I have upper and lower stations and already have a Raymarine Radar. The depth sounders are original Data Marine which I think have bronze thru hull transducers 2" holes. The...

Would like to sell and/or trade for larger boat and relocate to the Florida Gulf area. My 43 has DD 671Ns with 7.5KW Onan and is completely refurbished in turn key condition. This is a "PURE QUALITY" HATT with low hours and shed kept in freash water located at the mouth of the TENN TOM...

I have a pair of DD 671s N that I was curious if it would be an accurate reading of the engine tempertures if you shoot the sending units on the engine with a IR temperature guage. I did thiis the other day. Shot each engine at about the same distance on the top of the sending unit where the...

I am ready to move on to the next level which promps the immediate sale of my Hatteras. I have refurbished this fresh water boat over the last two and half years and now ready to let it go. It is in excellent condition and has been under cover since new. I have a very nice set of photos which...

Need some advice here. I have a 80 model 43 DC I think with the original air horns located on the top deck benneth the mast. Two hons that run off a small 12 volt compressor. The horns cease to toot although air is coming through when the button is pushed to activate. I need a replacement...