Saturday, April 22, 2017

Sunday, April 9, 2017

Servicing the Winches

The boat has been in the factory for over two weeks now. Workers have been busy removing the windows, painting the interior and prepping the deck and underside for new paint.

David has been busy with his own projects. He is performing a 1,000 hour service on the diesel engines. Most of you know that David is mechanically inclined, but some of you might not know that a couple of years ago he took a diesel mechanics course at the local community college in anticipation of cruising. He has also been busy working with the marine electrician designing the electrical system and doing lots of research and decision making on the electronics.

With else everyone busy, I needed something to do. When we were on the water I could always find a project to keep me occupied (something always seems to need to be organized, cleaned, or polished). But now that we are in the factory I've been struggling with how to help. I've spent some time as David's "helper" fetching tools and other needed items while he is trapped in the engine compartment. But I really wanted to find something a little more useful. David suggested I service the four winches, which is basically disassembling, cleaning, lubricating and reassembling.

I was up for the challenge! I studied manufacturer diagrams on the web, watched a few YouTube videos, went shopping for a few supplies, armed myself with screwdrivers and hex keys, and was ready to go!

Here we go!


Hey, this has way more parts than the one on YouTube!
Thankfully David agreed to stay close by as my advisor as I worked on the first winch. He also rolled up his sleeves and helped with the cleaning and lubricating steps since there were way more pieces and parts than either of us was expecting.


This thing is like a Russian doll. When will it end?
Each of those gears has small parts nested inside them, called pawls and springs, that pop out of place if you even look at them funny. And the piece I'm lifting up has multiple bearings, spacers, and pawls inside as well. Put even one of them back in wrong and the whole winch won't work or, worse, will self destruct into an expensive pile of mashed metal at a time when we most need a winch. No pressure!

Getting greasy


After completing all four winches, here are some lessons learned:
  • There is no such thing as taking too many pictures during disassembly to assist with reassembly.
  • Be sure that photos are taken such that orientation is easily ascertained.
  • My husband is very patient, along with having WAY more knowledge, expertise and experience than I. He did sweetly point out that I was 46 before I witnessed my first winch servicing (via video) whereas he has seen and done them pretty much his entire life, which did make me feel better.
  • Staring at photos and diagrams won't answer all of your questions. Sometimes you just have to go the trial and error route.
  • Trust your instincts.
  • There are times when curse words are the only useful words. Like when I can't get those #&*$! springs to stay in the @^%! pawls.
  • Cover your work when you go to lunch, particularly if there is a chance someone might be sanding on the deck above you while you are gone. (More #*!@? words!)
  • There is definitely a learning curve with each one getting easier. 
Nice and clean and ready to be put back together.







Sunday, April 2, 2017

Engine Service...South African Style

With the boat in the factory, David decided to perform a 1,000 hour service on the diesel engines. As part of the service, he needed to remove the injectors. Unfortunately, after 10 years of sitting cozily in place, rust and grime had taken their toll and none of them budged. He needed an injector puller.

Official Yanmar injector puller. You don't want to know what one costs.

Easy peasy, he thought, just order one online. After a gasp inducing quote from the local Yanmar dealer and no luck online, he collapsed defeatedly into a chair. What were we to do? Well, fabricate one of course! While that answer was obvious to all of our friends here in South Africa, it came slowly to someone spoiled by cheap Chinese imports on Amazon Prime. Thank you to Gavin at Knysna Motor Strippers for patiently explaining how to go about making our own.

Cost:
===========
2 afternoons
6 stops to local businesses
1 borrowed slide hammer
$7.50 out of pocket

The best part...it worked like a champ on the first try!

The out of pocket costs were a few nuts from the local hydraulics store and having those nuts welded together by the local welder. If David had done the welding himself it would have been cheaper (and he says much prettier)!

The lumpy thing in the middle is the adapter we made

Unfortunately, I didn't get a photo of muscle man hammering out the injectors but, needless to say, he looked manly and handsome while doing it. The injectors came out intact and are off to get cleaned and rebuilt. The ones on the port engine were pretty dirty which could explain why that engine was running roughly. Good thing we're servicing them.

Next up: we need another tool to pull out the injector seals that didn't come out with their respective injectors. In the US, we'd call it a mechanics pick which would look something like this.
2nd from the bottom is the one we need

What should be a 5 minute job will probably take another 2 afternoons of running around, explaining what we need, not finding one, then convincing a machinist/welder/mechanic that our idea for making one will work well enough without an hour long design session. Good thing we're retired!