New owner of a Parker Dawson 26 Ketch - Page 13 - SailNet Community
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post #121 of 126 Old 05-29-2019
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Re: New owner of a Parker Dawson 26 Ketch

Is it open at the top for bottom of the winch access?
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Re: New owner of a Parker Dawson 26 Ketch

Neither. You just take it out when you need to remove the winches. (Actually makes it easier)
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Re: New owner of a Parker Dawson 26 Ketch

A few quick notes for Johney regarding bringing her YSE/YSM-8 back up and running on her Dawson.

Key points:



The front side is your engine oil. The yellow circle, shows the dipstick/engine fill. To change the oil, you just use a siphon pump down the dipstick hole to suck the old oil out and then put new oil in till you hit the full level on the dipstick. On the YS series, your oil pretty much instantly looks black and icky so don't be surprised. Just change it at a reasonable interval and you'll be fine. I run Rotella 10W30 in mine, it has the right additives for a diesel and is not as prone to attack seals as synthetic oils.

The red circle shows the very basic oil filter. Basically just rotate the little knob a few turns prior to each run.



On the backside reached from behind the aft cabin steps is the transmission oil dipstick. Same as the other side, pump out the old, fill with the new. I used the same oil here as the engine. Note that this oil stays pretty clean by comparison.



Under the head, you will find this little drain ****, it allows you to drain the water jacket. In practice, this part of the water jacket collects a lot of debris and sediment so it's a good idea to drain this periodically regardless. If you open it and nothing comes out, back flush it with a little hose to get stuff broken up and flowing.



This is the decompression lever. All it does is open the exhaust valve and prevent the engine from compressing which makes it spin quite easily. This is handy when you need to spin the engine over and bleed the fuel system or get the engine spinning when you have a low battery.


This is the sacrificial zinc on the YSE. It's mounted on the side of the water jacket and is pretty easy to switch out.


The YSB and YSM have their zincs mounted here. Either way, I would suggest replacing the zinc if you have not seen it just yet.


This is the primary fuel filter/separator on on Johney's boat. Most any of the Dawsons will have a similarly mounted canister filter here. Pull it apart, clean it, replace the filter.


This is the secondary filter again on Johney's boat. Unscrew the retaining ring and tap the bowl off. Replace the filter as well as the Oring.


Once you are done, you need to bleed the fuel system. As long as your electric fuel pump still runs, this is simply matter of removing this cap screw and letting the fuel pump run till fuel runs smoothly out of this port with no more bubbles. Generally the YS series will start fine from there but worst case, you need to loosen the fuel line to the injector and crank it over a bit with the throttle all the way up and the compression release activated till again , you see consistent little spurts of fuel coming out of the loosened line.


Your water pump sits here on the YSM. Not as convenient a spot as on the YSB and YSE but still not too hard to get to. Reach down there and remove it then replace the bearings, the impeller, the seals and if it's scored up at all, the back plate. Restored as such it will be quite trouble free.


Somewhere around here on the Dawson you'll find a strainer which filters the cooling water for the engine. Obviously, clean the strainer. Aside from that, if you want to run the engine on the hard, you can open the top of this and keep water in the bowl while the engine is running.

From there, it will pretty much kerfoom itself to life and run like a swiss watch.
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Your so awesome! Looks like I'm going to be getting my hands dirty this week. It's the only thing keeping us out of the water right now. Thanks for the info. I will keep you posted
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Re: New owner of a Parker Dawson 26 Ketch

It looks like a lot but it's actually not all that bad.
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Re: New owner of a Parker Dawson 26 Ketch

https://www.flickr.com/photos/558558...in/dateposted/

Just to give you an idea how much work is involved in testing one of these. Roger and Wendy stopped by on their way by back to Idaho after picking up this YSM from a Craigslist seller in Michigan. Since these guys will run on their own pretty easy, we dig up a little diesel and dipped a water hose into a bucket and fired it up. In this case, we just checked the oil (clean and new), checked the Zinc (good), bled the fuel system and it pretty much immediately fired right up.

Love these little engines.
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