Showing posts with label Nissan. Show all posts
Showing posts with label Nissan. Show all posts

Saturday, December 29, 2007

Original outboard

 

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This is the Nissan outboard that was on the boat when I bought it. Note the offset location. Although it had electric start, it was a hassle to use because stern pushpit interfered with access. After-market throttle extension shaft help, as did my home-made gear shift extension.

A Very Full Circle Indeed

Careful readers may assume that I'm now back where I started. I bought an old boat with a new outboard and an old inboard. I put all my effort and money into the old engine and sold the new outboard. The old engine ultimately failed. I threw it away and bought a new outboard.

I did have the satisfaction of restoring a moribund old Swedish gasoline engine designed in 1925 and getting another 110 hours of life from it. The two-cylinder flathead Albin with its 50-pound flywheel had its charms -- and vibrations. But our relationship had run its course and I'm not going to miss it.

In its central location just behind the companionway ladder, I can put the boat's batteries where they will be easier to reach and provide the best ballast. And I'll still have room to build a large storage shelf above them.

When I bought the Ericson 30, various people suggested how lucky I was to have a new 4-stroke outboard on the transom and how easily I could lighten up the boat by removing the old inboard. I rejected the idea without ever seriously considering it. I couldn't wait until I could get the inboard running and remove the outboard.

The original Nissan outboard made the same power as my new Tohatsu. It's the same engine except for the label. Except it isn't really the same. The original was a long-shaft (20-inch) model with electric start and manual controls. It was mounted on the port side of the transom because that is where it was possible to reach it by crawling beneath the stern pushpit in a gap between the backstay and a vertical support.

That difficult effort was required when lowering the engine and again when pulling it up out of the water when under sail. In other words, using the outboard was a big hassle. Every time I did it, I looked longingly at the cockpit-mounted ignition switch, gear shift and throttle lever for the inboard engine and hardened my resolve to get the Albin running.

With help, I did. We fixed what was obviously needed, such as new valves, new piston rings, new and improved wet exhaust system, new carburetor and, eventually, new cylinder head when the old one rusted through. We didn't touch the bottom end, nor even separate the transmission from the cylinder block. Both were fine in test bench runs and remained that way for 110 hours back in the boat. But something eventually let go, causing a loud knocking that demanded immediately shutting down the engine. The source of the knock defied my in-the-boat attempts to identify it. I won't ever know what it was now that the engine is gone, left for scrap at the boat yard.

With hindsight, it now is clear that fronting the estimated $10,000-$12,000 cost of installing a new diesel would have been smarter than spending half that in increments as the Albin restoration project crept forward.

But having already spent that, I couldn't see now putting another $10,000-$12,000 into a new diesel. Spending about $4,000 for a new outboard and fancy Garelick hydraulic motor mount made a lot more sense.

However, I have made the new outboard nearly as convenient to use as the inboard by purchasing a remote-control model, and mounting it on a Garelick hydraulic outboard bracket. I can lean over the pushpit, not crawl through it, and let gravity lower the engine by merely opening the hydraulic bleed valve a half turn. Raising it requires only a dozen swings of the hydraulic pump handle.

The electric starter, choke, throttle and gear shift are handled with a robust control unit mounted on the sidewall of the cockpit in easy reach of the tiller. So is the combination tachometer and hourmeter, which is an after-market unit from Teleflex.

The ouitboard feeds from the replacement aluminum gas tank I had built for the boat a year ago, through the same Racor filter/water separator that served the inboard engine. The Tohatsu's fuel pump easily handles the extra length of the heavy Coast Guard-approved fuel line. And I can carry and easily switch to standard outboard fuel tanks to supplement the 22 gallons in the main tank.

Fuel economy is predicted to be about the same as the Albin - about a gallon an hour at max throttle. But exhaust emissions are much, much lower. The Tohatsu is a three-star ultra-low emission engine.

The six amp alternator built into the electric-start Tohatsu is enough for the low electrical loads on my boat. It's about the same output as the oddball starter-generator on the Albin.

The noise level is lower in the cockpit and virtually gone inside the cabin. When we motor back from the Ensenada race next spring, the off-watch crew is going to sleep easily.

Finally, when the Tohatsu needs professional servicing. I can easily lift it off the transom and take it to a dealer. And I'll never again have to spend $1500 for a new prop, prop shaft, cutless bearing and stuffing box.

I will have to spend something eventually to remove the existing shaft and seal up the hole. However, since it exits the hull behind and above the rudder, with no strut, there will be minimal drag if I simply remove the prop for now and secure the shaft outside with a zinc collar against the cutless bearing and inside with a couple of hose clamps ahead of the stuffing box.

So, yes, as a practical matter I am back where I started, having made a substantial contribution to keep the consumer-based economy afloat along the way. It was an interesting journey. I still have a great boat. It is a much better boat than when I bought it. It still needs work.

I suspect there are a lot of old sailboats that could be improved by replacing an unreliable inboard with a quiet new, remote-controlled outboard.

Wednesday, July 4, 2007

Sail What You Got

Broken engine or engine removed, it didn't matter. Narrow Escape was a functioning sailboat from the day I bought it. And I took it sailing a lot. This picture, taken by John Dickerson from his Catalina 34, Pelican, was on one of those early days in the fall of 2005.

The picture tells a story for anyone interested in sailing and doing so on a budget. The story is that once I bought the boat and finished with the survey haul-out and initial repairs I was ready for daysailing and Catalina Island cruising in Southern California. Most of the hours and dollars spent thereafter, and there have been a lot of both, were unnecessary.

But I'm a tinkerer. I like to putter around my boat. I like to fix things. I like to make it better. I take pride in my work. I like to look at the results and tell myself that it was worth the cost and the effort. And I believe it.

However, I'm realistic enough to know that this photo shows that other people could logically reach a different conclusion.

If you stick with me on the blog, I'll explain a lot of the things I've done to Narrow Escape since I first got it back in the water. And I'll provide some cost figures, though not accurate to the cent. I didn't keep a lot of the receipts. Besides, I don't really need to know. Its not like I would have wisely invested the money if I hadn't spent it on the boat.

The Nissan 9.8 hp electric start outboard was a fine engine. But a little awkward to use. I did a couple of things to improve that.

I found it hard to reach all the way to the stern to control the throttle when I was motoring with the Nissan. So I bought a HelmsMate outboard extension handle, the $60 model with a universal joint. Problem solved

Trying to shift the engine from neutral to forward and back again, or to reverse was even more awkward. Just when I most needed to be looking forward, docking the boat, I had to turn around and lean backwards through the pushpit to reach the shifter

I couldn't find any off-the-shelf solution, so I made a shifter extension out of plastic plumbing parts from the hardware store.
By trial and error I selected a plastic pipe nipple that would slip over the shifter on the Nissan. To achieve the needed horizontal motion and allow necessary flexibility, I added a 45-degree fitting and a closed cap fitting. The horizontal pipe was given cap fittings at each end.

I joined the two cap fittings between the 45-degree piece and the horizontal pipe with a stainless machine screw and oversize washers inside each cap plus a lock nut. I drilled the holes in the end caps larger, to allow the machine screw to wobble, but not too much. That work was done in increments and tested on the boat until it worked well. Then all of the plastic parts were cemented with plastic plumbing cement.

I made one omission that was discovered in a most awkward fashion. In April, 2006, as my crew and I motored out of my slip in a hurry to reach the starting line for the Newport-to-Ensenada race, the shift extender fell overboard. Air trapped in the long handle (despite the oversize screw hole) kept it afloat long enough for it to be retrieved. Later I added a lanyard to tie the extension to the pushpit when in use.