Garhauer 1.25" Davit Installation
Henry-
I am a DIYer. My choice for quality and value was Garhauser Marine and I installed their 1.25" HD davits. The installation took me and one friend a total of one day to install. I spent another eight hours measuring the stern and planning the installation. If I had known
exactly how to install and
exactly where to drill, we could have done the job in half the time. I always measure three times and cut/drill once.
The people at Garhauer were excellent to deal with and their delivery was right on time this past Spring.
The attached pictures show some of the installation details.
Several important points:
First, measure vertically from the base mounting location on the stern to the upper curved stern rail on
both sides. I found that on my 40.5 these two measurements were not equal between the port and starboard sides. In my case they were one inch different. If this is also the case for you, you then have a decision to make. You can cut the davit arms so that the distance from the top of the stern rail to the curve of the davit arm is equal on port and stbd,
OR you can simply cut both davit arms to an equal length and then one davit arm will
appear to be higher than the other relative to the stern rail. This was my choice.
Second, when installing the base and it's backing plate on the
port side, remove the propane locker. This comes out easily by cutting the silicone sealant and removing four screws (I think I remember there were four screws, maybe not). It is not possible to install the backing plate with proper sealant any other way unless you are 2'6" tall and can fit into the stern lazarette. Don't even try.
Third, if your dinghy is under 10' 6" (mine is 9' 3"), I recommend making a modification to Garhauser's original design. Their original design calls for two straight tube braces connected between the davit arms using Tee-fittings. These will hold the davit arms perfectly parallel and prevent any movement.
However, due to the limited choice of base mounting, this fixes the distance between the davit arms to be too far apart for a short dinghy. You really
must have the arms (at the end with the block & tackle) inside the dinghy so that the tackle lines run outward to the bow and stern fastening points in the dinghy. Failure to achieve this configuration will mean that the tackle will interfer with the dinghy engine and will also rub against the dinghy bow tubes. Both interference points will cause damage to the dinghy or engine.
To solve this problem, you need to buy a few extra parts from Garhauser. These are standard parts that they already have in stock. You need to buy eight 1.25" end caps with stainless hardware to connect them in pairs, two of the rail clamps (1.25" to 1") and a two-foot piece of 1" stainless tube. You will cut four short pieces (4-5" each) from the two long brace tubes that they send. Be sure to cut two pieces from
each brace so that you don't end up with one brace that is too short to use later. Connect the end caps with the short tubes as shown in the picture, and then tip the davit ends toward each other. You want the ends of the davits about 12-18" less than the total distance between the dinghy stern and bow hoisting points. Measure for the length of the inner and outer davit arm brace and cut them from the remaining tubes.
Be sure to allow for the length of the brace tube inserted into the end caps.
Lastly, with the braces assembled, move the davits until they are centered on the stern. Now using the extra rail clamps, attach the 2-foot piece of 1" tube across the davit arm braces. When all fasteners are tightened, the entire davit system will become completely rigid. You may want to cut the 1" cross tube to length and cap it with a couple of plastic caps for metal chairs. See your favorite hardware store for these caps.
I realize that these instructions may seem lengthy and difficult, but they are really straight-forward. Email me if you have any questions.
Total price for all parts and shipping to the east coast was about $1200 this past Spring.