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I have been trying to diagnose my generator exhaust being noisier than I think it should be on my 400DB. I have replaced the raw water impeller. pulled and cleaned the heat exchanger, cleaned the intake screen and the through hull screen. I still see a almost continuous stream of water out the...

I am thinking about replacing the raw water pump on my port motor. I have Cummins 6cta450m8.3 engines in a 2001 400 sedan bridge. it looks pretty tight to get in there. I was wondering if anyone with the same engine has done this themselves? or is this something better left to a mechanic?

I am faced with replacing one of the through hulls that attaches to the port side deck drain in the cockpit. I don't see a lot of options to get to the darn thing as it's tucked away behind the exaust whch could be removed but I would rather not have to do that. the other way that may work is...

Could anyone direct me to the manufacturer or a distributer of the fresh water wash down cocks on my searay? One of the handles was lost overboard (long story) but I either need to replace the handle or the whole unit.

I have been trying to find out how to set the idle on my Cummins 6cta8.3m engines? When they are warmed up they both idle at around 600 rpm in neutral but in gear they idle at 500 rpms which is not bad for docking but if I goose the throttle of one or the other I can have stalling at times. The...

I On my 2001 400 Db I am thinking that my switch panel to the right of the helm the legends should light up when I turn on the panel lights. Is this right? And if they don’t where would I find the bulb?

I am looking to buy some gellcoat for my 2001 400DB. last summer my dock wheel broke loose from the rotted dock boards and flipped up making some deep scratches into the gellcoat and I have s amll chip in the edge of the bridge steps. all need to be repaired but I want to do it with the factory...

I am in the process of removing the aftercoolers on my 400 DB I have the Cummins 8.3m-450 engines and there are only two ways I can see to get enough room to remove the port aftercooler. one is to remove the hatch on that side wich looks to be a pain in the neck seeing that the hinge has a LOT...

Im am about to install the bridge cover on my 2001 400 DB sedan bridge for the first time for winter storage. what I would like to know is do I need to remove the two barrel chairs for the cover to fit correctly? I am storing the boat in the water this winter and will not be having it shrink...

I have owned my boat for two seasons now and would like to have oil analysis done on the engines, transmission and genset. To compare with the purchase samples that were taken at the purchase survey. Would I just go to Cummins and get the kits or is there some on line place that I can order the...

I recently bought C-Map’s PC planner and am trying to get the darn thing to work with a 2001 RL80C plus plotter/radar display installed on my 400DB. I format the user chip using the PC planner and the USB card reader and then download the routes that I have made to the user chip and install it...

I was working on chaing the oil in my zf 208's yesterday. I was not able to get the nut off to clean the filter though. so I ended up filling the transmission with the clean oil. The problem with getting the nuts that hold the filters in seems to be that I didn't have a long enough wrench to get...

I have been cleaning and waxing my boat for the summer boating season and I have what may be a stupid question but I am going to ask it anyway. I have been trying to figure out how the heck to clean a wax the radar arch on my 400 DB? no boat I have had before had a arch haning out over the...

I have been trying to figure out how to repair my bridge windshield. On the starboard side where it attaches to the radar arch the screw is pulled out and there is about a ¼ gap. I don’t quite know how to proceed to get to the screw. Has anyone had this problem with a 400 DB? And if you have...

I am looking to get some of the copper sealing washers for the drain plug and strainer plug on my zf 280 transmissions. I can’t seem to find a source of them. Can anyone point me in the right direction? Thanks, Matt

I have four of nthe lift the dot studs that were broken off the track clips on my windshield on my 2001 400 DB . I am looking for a source of replacements. does anyone out there know where I can order them and how they are installed? Also as this in the first spring owning this boat I am...

I have a leak that I just found the other day. I was removing the saloon door and removed the screws that hold the overhead plastic strip. when I did that water poured out from the first two scres on the port side the rest were dry. I am not sure where to start to look for the source of the...

I did the oil change today and tested the cooling system with the test strips. I get 2.6 and 2.8 for the starboard and port engines. So what do I do now? Do the filters that I have stay on or do I replace them with something special? Also I was looking around for the zincs on the engines I...

Okay it's time to do my first oil change on these engines. I have not done it before and have no operators manual for information. I poked around the net and have come up will little to help me. I did find a spec that the pans take 4 gallons of oil and that I should use 15w40 rotella t or equal...

I have found a leak in the windshield on my 400 DB. After a lot of checking and using a hose I have found that at the bottom of the frame where the glass is sealed there are two places that show signs of small leaks. My question is who would one call to have it repaired? I know that it’s not...