Wednesday, April 22, 1998

Lazy Jack System (April 1998)

We first bought a Schaefer lazy jack system which has many component parts and requires attachments on the mast and boom. A schematic of the system is on the left, below. The right sketch shows the special pull back hook that is used to stow the lines inside of the sail cover.





















  1. Port and starboard, braided lines are attached to pad eyes about two thirds of the way up the mast.  These have elk hide, leather sheathed blocks at the lower end. 
  2. This system uses a single, 1/4 inch diameter control line, about 60 feet in length. One end of the control line is spliced to a small pad eye that is attached to the forward quarter of the boom on the starboard side. This line is fed through the upper starboard block, then back to a pad eye near the rear of the boom, then around under the boom to another pad eye on the port side. The line continues up and through the port block the down through a the eye of a cleat mounted on the port side of the boom. 
When hoisting or dropping the main sail, the control line is cleated so that there is tension in the lines and the sail is controlled within the lazy jacks. When sailing, the control line is set so that the lines are loose and do not interfere with the shape of the sail. 
When its time to install the sail cover, the control line is released and all the standing parts are led back to and through the two-sided hook on the end of the boom. The free end of the control line is adjusted to tension the lines and then cleated.
This all sounds easy and handy in theory. However, there are many friction points in the system. Because of all this friction, usage and stowage of the lazy jacks became a two person operation.
Four months after installation (August 1998), we abandoned parts of the system and substituted four lengths of bungee cord for the lower parts between the upper blocks and the boom. We maintained two sections of line, about eight feet long, that runs through the upper blocks, the fore and aft bungee cords are attached to this bridle line. The lower ends of the bungee spliced through the eyes of carabiners for attachment to the pad eyes on the boom.
There are three positions for the four bungee cords:




Stowed: The carabiners are attached to the eye of a short length of one quarter inch line that is attached to the end of the boom. The eye is tied so that it encircles the topping lift. The bungees are stretched somewhat to control their motion and being constrained by the topping lift, their motion is limited. They are out from under the sail cover and no sail cover alterations were required.






Hoisting and Sailing  The four carabiners are moved to pad eyes that are located forward on each side of the boom, a few inches aft of the gooseneck. The bungees are still tensioned, somewhat, so that their behavior is well controlled and they do not interfere with or affect the sail shape.











Sail Dropping: The four carabiners are moved to pad eyes that are located in the original positions on the boom. This “soft” lazy jack system then replicates the original. This operation is performed by first moving the two port carabiners and then the starboard ones. When the sail is to be dropped, we head upwind, release the halyard and the sail drops in neat folds to the top of the boom. The sails ties are attached and we are in control.





Each movement of the bungees is easily accomplished by one person, in a few seconds. In our opinion, this is one of the most convenient and quick lazy jack system extant.





Although they do not show themselves in the above pictures. There are small plastic balls attached to the upper bridle line near the block. These balls limit the travel and prevent the bungee sections from moving out of reach.




The bungees do last for quite some time. They were replaced, for the first time, in 2004. This new bungee cord has a black sheath which resists ultraviolet radiation. The upper bridle lines were replaced in 2007. The elk hide leather sheaths and bungee cords were replaced in 2014.

{Lessons learned:
1.Sometimes new equipment is too complicated and takes more effort to use than it saves.
2. With enough thought, a simple system will be found that performs better and uses less effort.



Thursday, March 13, 1997

Engine Oil Filter (March 1997)

The original Atomic 4, was not equipped with an oil filter. Indigo Electronics made available a by-pass- flow oil filter kit, #AT-4F, for this engine. We obtained and installed this kit and have been satisfied with its performance. In our usage the oil stays clean for a complete season. We change the oil and filter yearly, even though it may not be required.


Wednesday, July 10, 1996

Relocate Engine Instrument Panel (July 1996)


The original equipment instrument panel was located in the cockpit footwell, on the forward bulkhead. This was a convenient location for the wiring and the engine choke because the main electrical panel is directly forward and the engine is below this location. However, to start the engine, a person must be positioned low and forward in the cockpit. This means that the throttle and gear shift lever which are located on the steering pedestal are barely within reach. 





We decided that the most available and convenient location for the controls, at least for a right-handed person, would be aft, on the starboard side of the cockpit coaming.



The instruments, switches and choke cable are mounted directly into the coaming surface.  We drilled suitably sized holes, using a carefully made template. The original panel included an ammeter. In order to eliminate a long run of heavy-gauge wire, the ammeter was moved to the inside, main electrical panel. In its place, a new volt meter was installed in this remote panel.  The teak surround is made with half-lap joints and is held in place with screws that are driven from the inner side of the coaming. The hinged, polycarbonate cover is from the original panel. Only a new wiring harness and a longer choke cable were required.




We were fortunate that there was sufficient space inside the coaming to clear the hardware and provide space for access. This space is not the easiest place work in. However, the old, bridge deck location was even more difficult since one would have to lay on top of the engine to access the back of the panel. The new location is also drier because the bridge deck drain was directly above the panel.  




The bridge deck bulkhead required fiberglass work to fill the holes. We champfered all the edges to bond the new work to the old. The new show surface was smoothed and gel coated to match the original. The result is shown here. Still looks great, almost 20 years later.



Lessons Learned:
  1. It is useful to “think out if the box” to find a solution to an annoying problem. It helps to keep your mind open to the things that you may see at a boat show or in a magazine.
  2. Make sure that you consider all available spaces even if, at first glance, they appear to be too small or inaccessible.
  3. This project returned rewards in comfort that far exceed the effort that went into it.


Saturday, November 18, 1995

12 X 6 Two Blade Propellor Replaced with a Two Blade Campbell Sailor Propellor (November 1995)


The Campbell Sailor design features a cupped blade that is wider near the tip. They claim that forward thrust is improved and reverse thrust is very much improved. We found this to be the case and have been very happy with the performance of this propellor.



Saturday, July 8, 1995

Bimini (July 1995)

For many years, we endured hot, sunny and almost windless days in the cockpit. We were jealous of those people on boats that had Biminis and awnings to protect them from the elements. After a thorough investigation, including sketches of the installation of stock Biminis, we bought a stock, aluminum-framed vinyl Bimini from M&E marine. I drew this sketch, based on the dimensions provided by M&E.



The Bimini has three bows and is as wide as the stern rail. It is hinged from the mid rail of the stern rail and provides over 6 feet of head room. It is about 6 feet long in the fore aft direction. As shown, there is clearance for the boom to pass over. The back stay passes through a zippered slot that is aft of the center bow. The back stay supports it when furled. Fore and aft straps support the Bimini when it is open. This is a photo with the Bimini deployed.


We also designed and sewed, from Sunbrella fabric, a zippered cover for the furled Bimini. The original vinyl fabric was replaced with Blue Sunbrella fabric, by the Dockside Canvas Co., in 1998.

{Lessons learned:
1. Comfort is aways important. Discomfort can mar a good sailing trip.
2.You, sometimes, do not need custom made, expensive components. Search for available standard equipment.}




Wednesday, May 18, 1994

Replace all Cabin Widows (May 1994)

The original plexiglas cabin windows (lites) were trimmed with a plastic ring and mounted to the hull with sheet metal screws. The plastic ring was about one inch wide and served to hide the view of the white hull below the plexiglass. The rings and lites were, faded, scratched and cracked.

We replaced them with 3/8 inch thick acrylic panels. A black paint masking, about one inch wide, was applied to the inside surface of the new lites to hide the hull color, caulk and the inside wood trim. 3M Press-In-Place™ caulk was applied to the inner surface of the paint line.This caulk seals against leaks between the lite and the hull as well as around each of the screws. All of the holes in the new lites were drilled in the original locations so that the old mounting holes in the hull could be used. The holes in the lites are drilled to fit the aluminum-tube spacers which surround each screw. The spacers are slightly longer than the thickness of the new material. to prevent over-stressing of the plastic. The spacers are also slightly over size to allow for thermal expansion.These windows seldom leak and when they do, it is quickly cured by a little tightening of the screws. The lites are now 20 years old!

{Lessons learned:
  1. Do anything that you can to prevent little leaks into the boat interior because they are really annoying.
  2. Do not attempt to control leaks by smearing “goop” around the window, it never will work.
  3. Again, look at all alternatives and consider the aesthetics.}



 

Saturday, May 22, 1993

The Great Muffler Mystery (May 1993)

From the time that we purchased the boat, 1987, the engine seemed to run rougher than expected and after a sail that involved significant heeling, the engine would be hard to start. On these occasions, we would find the engine oil to be “milky” (we found out later that this meant that there was water in the oil). We would change the oil and the go on to repeat the process many times. At one point, we thought that the cylinder head gasket was leaking and went through the trouble to, needlessly, replace it.
It was not until 1993 that we found the root cause of the problem! We had an occasion to examine the forward end of the Vernalift muffler. We saw the word “outlet” printed on it. At that point we realized that the muffler had been installed backwards at the time the boat was built. This caused water to collect and return through the engine exhaust manifold and valves into the crankcase when the boat was heeled. We reversed the muffler so that the engine exhaust went in the inlet and and the water/exhaust-gas combination went out the outlet. Problem solved: the engine runs smoother and we have not had water in the engine oil since that time. Just a shame that it took fourteen years to solve the mystery.

The view on the left, from a Columbia Yacht Corp. drawing, shows the correct routing for the engine exhaust. The drawing also shows the internal parts of the Vernay waterlift (#7) with the inlet pipe in the correct position. This helps to explain why the engine ran roughly. The exhaust is under water with the muffler reversed. The photo on the right is of the forward end of the waterlift after we reversed its position in the boat. This view shows the inlet, engine, side of the muffler.