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My first concern would be that a 3/4" thru hull is likely way too narrow - so highly recommend checking the heater specs for minimum diameter of exhaust hose (e.g. the Webasto 20xx DBW series heaters require a min diameter ranging from 1.5" to 3.2"). While I haven't measured it, my thru hull...

FYI - the CMC Stab 20 is what would be appropriate for the GB46 (per CMC / my investigation). A friend has them on his 55' navigator and loves them too. Space, zero speed, and overall simplicity / maintainability was why they topped my list if I ever change my mind and accept the cost...

I have a 2001 GB46 CL and just got through investigating various stabilization options incl. Humphree and CMC Waveless, Naiad, and ABT. CMC appeared to be the best option - esp. if zero speed/anchorage stabilization is desired). Install costs were just too high for me (estimate came in over...

I have TD MG-5061-A transmissions. Engine controls are Mathers Micro Commanders; therefore the engines are essentially always going to be at idle RPMs when a shift occurs. The MMCs also won't allow engine acceleration before the clutch has been engaged (clutch oil pressure interlock). If...

My setup has 2 supports - 1 for the mast when lowered (upper support), and a lower support for the boom. The lower support height above deck is ~54.5 inches (where boom would rest) while the upper support is ~73 inches above deck (where the mast when lowered rests). The support post attaches...

I'll try to remember to measure next time I'm on the boat, so you can get an idea on potential solutions (I'll incl. a photo or 2 too).

On my 46 w/ twins, the tabs work just fine, but that doesn't mean they are effective. At WOT, trimming bow down may gain an additional 1/4 - 1/2 knot, but going from 3gph / side at normal cruise to 16+gph/side means they are almost always left in a neutral position (as normal cruise vs. WOT is...

On mine, the nav and instruments lights are on the same breaker.

Welcome to the forum and to Grand Banks! If you haven’t talked to NW Explorations in Bellingham, i suggest reaching out to them for a recommendation. I would also seriously consider Cetal or Awlwood unless you really want the visual impact varnish can bring especially when done right, however...

I'm looking at replacement options on my GB46 CL, which has the top-load freezer in the corner of the galley and the separate upper/lower refrigerators. The Nova Kool LT201 system seems to be the most straightforward replacement options, esp. if my assumption is correct that there would be no...

I wish I could say something like that has never happened to me, but alas.... :rolleyes:

I assume you've testing the alternator directly with a multi-meter (pos probe to alternator's positive output terminal, neg probe to ground)? It should be in the 14.5+ range (at/above engine high idle). If really low output, try disconnecting the field wire from the external regulator and...

Thank for sharing Ken!

FW Plumbing layout on GB46 here's the water runs on my GB46 - you will probably need to zoom in to see the details. It is interesting to note that I have gate valve type shutoffs for both heads, but no way to isolate the FW anchor washdown, nor H/C FW Cockpit shower, which I'm concerned...

I have successfully uploaded a profile picture, but it fails to display in threads or replies. What am I doing wrong??

My GB46 CL, has both Sea/Freshwater anchor washdowns and H/C FW Cockpit shower / washdowns. Given the associated lines and fittings are exposed (either via anchor locker, or aft lazarette) and there are not isolation values/drains - I'm curious how others have approached winterizing just this...

My GB46 has both fresh and salt water wash downs. Freshwater plumbs from t-connection under fwd head sink while saltwater is from thruhull under fwd cabin. Next time I’m on the boat, I’ll get a picture of the waterline runs documentation.

MW Explorations Check out NW Explorations in Bellingham if that is “close enough” for you. They have a full charter fleet of GB’s, provide training services, etc. How big of a step up does a 42 represent (length wise)?

Welcome Aboard Welcome and I'm sure many will be looking forward to seeing pics of your GB32 as you progress through your restoration process. Everyone is super helpful so ask away, but as noted, some answers may need to be taken w/ a grain of salt :D

My 2001 46 classic has the 3 step ladder to allow easy access via the aft hatch/entry. The ladder has all HW attached and the catches for securing the ladder in the stowed position are there but what is not installed / missing is the cabinet side HW to secure ladder to the drawer cabinet when...

Hi Vrooman, I looked closely at this boat but decided to keep looking. At the time the asking price was 30K more than current. overall the boat was is good condition w/ ~4500 hrs on the engines (which if well maintained, can easily run 20K hrs +), so hrs was not my concern. The boat was...

HIN format: 1st 3 letters — manufacturer (GND == Grand Banks) Letter & next 4 digits — model hull # / serial # Letter & digit - month & year of production Last 2 digits — model year

Has anyone ever heard of Paravanes being added to or used on a GB? I've seen them on many other boats and know they are considered pretty comparable (performance wise) to active fin stabilization. Install cost of Paravanes is substantially less than fins, are virtually maintenance free, but...

Interesting to note that the GB46 under discussion in this thread back in 2020 just went under contract in the past month or so.