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I have 8V71TIs with Allison M20 transmissions. The port transmission pressure always ran about 150 psi and remained constant in forward/neutral/reverse. The last two times out, the pressure would reach 150 and stay there while in forward but when I went to neutral and then reverse, the pressure...

On my 1972 53MY there is no lighting on the aft deck. I have a 12V line exiting the vertical surface just above the aft salon doors. Yes, I could run an external conduit to the center of the ceiling, but am looking for something more appealing cosmetically. Did Hatteras build a conduit into the...

Plan on repacking my stuffing boxes on my 53 MY. I have the 1/2 inch flax from Sam's and have done this many years ago. I want to pre-cut the flax the circumference of the shaft. How many pieces are required ? Larry Seadation 72 53MY

Last week, only my stern nav light would come on- no port/starboard/masthead lights. The bulbs weren't the problem. I removed a light bulb and got 32volts from each side of the receptacle. All the grounds, except the stern light, go to a large yellow/red cable ( ? 8 gauge) that runs down the...

Does anyone have any experience using a Fumoto valve to replace their oil drain plug on a DDC, or any marine diesel for that matter ? Larry Seadation

My starboard 8V71TI has a adapter/hose to the oil pan which simplifies oil changes. For some reason the port does not. As I approach the time for an oil change, it would make sense to adapt the port engine also. I went to Steward-Stevenson, a DDC parts shop, and they stated that DDC doesn't...

Ok, PO painted everything white. So where are the zincs and how many on a 1972 8V71 TI? Water pump and heat exchanger, and where on each? Larry Seadation

On my 1972 8V71TI, I have a fuel leak from a sensor which screws into the base of the secondary fuel filter. It has 2 poles on the sensor. I put tape and reinserted the sensor but still leaks - from the head, not the base- so need to replace it. Curious about the purpose of the sensor, and what...

Looking for working Simrad Robertson AP20 control head. Any out there? Larry Seadation

On my 72 53ftMY, I have a 32volt alternator on my port engine and a 32 volt battery charger. For the 12volt batteries there is a 12volt charger working off of shore power and the generator which recharges them. So for any prolonged use of the 12volt system I ultimately have to run the generator...

I have a throttle cable which when the engine (8V71T) is off, moves freely. When the engine is running, there is alot of resistence when advancing the throttle, but not when decreasing. To increase speed, I need to go beyond desired RPM and back down. Mechanic says cable fine. Any suggestions...

Need to replace a power panel switch on a 72 53 MY. On the power distribution panel that is port side of the lower helm, the one which deals with distribution of shore power and generator, there are two identical switches at the top of the panel. The positions marked on these switches are...

I have a 32 volt C I series 9000 battery charger on my 72 53MY. Although the amp meter on the face of the unit reads zero, the unit always has a pronounced hum and is warm to the touch. Is this normal ? Larry Seadation

I have a 16kw Northern Light generator on my 1972 53ft MY which previously worked fine. Keep in mind yesterday I was crawlering all over it trying to top off the batteries. So today, the generator starts fine, but on the power panel the volt meter reads 15 volts and the red " generator on" light...

I was replacing the tachometer on the lower station of my 72 53 MY. Since then I cannot turn on the " instrument lights " breaker. There is a label indicating that the horn is on this 32 volt breaker as well. When I opened the panel there are two wires labeled "58" connected to this breaker...

On my 72 53MY, there are no wood nameplates. There are holes below the forward most saloon windows for them. I am thinking about making new ones. Has anyone done this? Should I use varnished teak? How wide, 4",6" ? Should I mount them flush against the wall ? Should I caulk around the...

OK, I need educating. I remember reading that there is a tube from the top of the DD on each side that is suppose to drip a little oil. It might have been from the blower?? At any rate, any suggestions of systems to contain this discharge. The PO had a filter type cannister on one engine but it...

In the process of refitting, added a Ray Marine VHF to upper helm on my 72 53my. Did a " radio check " this weekend and have alternator whine. Something new. Any ideas on how to eliminate this? Larry SEADATION

I need 2 or 3 1 inch stanchions for a 72 53MY. These are 90 degrees. The base is about 2 5/8 by 1 1/2 and 1 3/8 tall. Sams does not have them and they are no longer available. The new ones have a larger base which will not fit easily for my application- there hold a 1 inch ss rail to protect my...

I need 2-3 1 inch stanchions for a 72 53MY. These are 90 degrees. The base is about 2 5/8 by 1 1/2 and 1 3/8 tall. Sams does not have them and they are no longer available. The new ones have a larger base which will not fit easily for my application- there hold a 1 inch ss rail to protect my...