Recent content by Hat43c1981

Groco Oil Change Pump Rotor/Impeller Seeing if anyone has experience with the Groco oil change manifolds/pumps. The one on our Hatt is a BMX 3-80 and it has a plastic rotor (what Groco calls it) that actually pumps the oil out of the oil pan on our Detroits. The pump stopped working recently...

Well, the compressor in our Kelvinator refrigerator quit on us last week. Has anyone had any luck finding a replacement R12 compressor for these old fridges? If not has anyone found a good replacement model? It is a full size fridge but is a little shorter than a typical unit. Fridge dimensions...

WOT 6V92’s realistic cruising speed ‘81 43c Our 1981 43’ convertible w/hardtop is powered with twin turboed 6V92’s and I am wondering what the WOT RPM should be under load. Also I run about 15kts with 7/8 full of fuel at 1880-1900 RPM’s depending on sea conditions. Are those figures I should...

The three hatches on our bow are starting to show the effects on the sun and I am wondering what the bet way is to refinishing them? What products to use? Thanks!

Our Hatteras has dual VHF radios with Shakespeare 5018 antennas and I am trying to locate a set of the 4318 replacement antenna tips that thread on the antenna bases. Unfortunately the tips are discontinued by Shakespeare so I am struggling to find a set. I am hoping someone might have a set...

Seeing if anyone has any feedback or experience with these pumps. I have a slow leak coming from the transmission pump on our STBD 6V92. I am having trouble finding info on these pumps. The little info I have located has mentioned there’s rebuild kits for them. The gaskets and O-rings dry up and...

I am trying increase stern lift on our 43’ Hatteras SF and I am tossing around the idea of installing a block of Starboard between the trim and where the ram/strut attaches to the trim tab. My thought is it would allow for the tab to go down further and in turn create more lift. Our Hatt has the...

All, I am trying to figure out what gauge wire is supplying the DC panel at our helm. We have a 1981 43c. The DC panel is original to the boat and has a total of 8 breakers. I have the factory wiring schematics but they are on the boat which is 2.5hrs away. I thought someone might know off the...

All, I am not near our boat right and won’t be for a few months. Ordering zincs for the prop shafts and I am wondering if anyone would know what size they would be. 1981 43c with 6V92’s. 2” or 2 1/4”?Thanks!

I am trying to figure what this type of clip is called so I can purchase new ones. (See attached picture)The clip in the picture attaches to a square plastic peg. The setup allows for two things to be fastened to get her but can be removed fairly easily. Any help would be greatly appreciated! I...

Our 43c is pretty stern heavy and I am trying to find the best way to flatten out the ride and so I don’t have to run with my tabs all the way down. With close to 500 gal of diesel and other things that have been added to the aft of the boat, she rides pretty bow high. Both fuel tanks are under...

What is the correct idle RPM for a 6V92. Mine are idling right at 600 RPM’s which seems a little high. Any advice or tips on how o adjust the idle on these DD’s? Thanks in advance!

Recently the salon a/c unit on our 1981 Hatt went out on us. The unit is a split system and was installed around 1998. Cruisair R Series. The compressor started short cycling and was pulling about 16 amps by itself. Had the system tested by a local marine a/c and found the compressor to be bad...

All, I am in the market for a RIB tender for our Hatt. Would like to get one with a steering console in the 10'-11' range. Curious as to what everyones experience is with their tenders. What do you like? What do you not like? Our davit crane is rated at 800lbs max lifting capacity. Thanks...

Good morning. I have a question about the prop shafts on our 1981 Hatteras 43c. I noticed there is a large (possibly a coupler) about 2 1/2' up from the props on the shaft. It is about 10" long and has 4 recessed bolts on it. Is this a coupler that attaches two shafts together? I am not...