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Stepping Out, Spencer Saraband, 2389


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On 25/02/2022 at 11:08 AM, aardvarkash10 said:

Fair point w44vi.  The filter was sufficiently clear to allow a steady flow to the original pump inlet when it was disconnected, and it really pi$$e$ out now with the electrics!

just a thought and it may have already been mentioned, Fuel tank air vent, may be blocked, mason bees do a very good job!  that is in the hose / pipe and almost invisible. Many small motors have had there exhausts glued up between startups.

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22 hours ago, Steve Pope said:

just a thought and it may have already been mentioned, Fuel tank air vent, may be blocked, mason bees do a very good job!  that is in the hose / pipe and almost invisible. Many small motors have had there exhausts glued up between startups.

Thanks Steve - I will check that out.  We had a similar issue this weekend, just as we were coming back in.  Went to Kawau Saturday, Back to Rakino Sunday, Ponui Monday, all without problem.  On approach to the Clevedon River this morning at 2,200rpm a slow decrease in engine speed and, once in neutral the engine wound down and stopped.

Air in the fuel line.  Once it was bled, I did a quick and dirty flow test - half a litre in about 30 seconds from the fuel pump, no obvious air, fuel was clear and not cloudy, no moisture in it, no obvious signs of diesel bug.  I hooked it all back up, bled it again because - nervous - and we idled up the river for 35 minutes at a steady 1350rpm, no issues.

I have a feeling that the air may be coming from the diesel heater.  I only twigged to it when I was fossicking in the dank rear corner of the engine bay.  The feed for the heater is taken from the same main filter/separator as the engine.  Its possible that the pump has sucked fuel from the heater line and then sucked air.  I'm going to disconnect the heater fuel line and block it, then try again.

And look for insect nests at the same time.

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On 13/03/2022 at 8:06 PM, w44vi said:

Put in a non return fuel valve.

its ordered!

Much easier than a new line from the tank and if it doesn't work, then I have the option of a new line.

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On 19/12/2021 at 3:31 PM, aardvarkash10 said:

Fitting up the TP32 tiller pilot, and I found the swan-neck tiller on SO is waaaay too low at the required mounting point.  Something needed to be fabricated to lift the mounting pin about 100mm.

I flirted with making a nice timber riser, but ultimately it was a lot of faffing around.  What about a stainless tube or similar though...  hmmmmn.

In the end the easiest was to buy a 316 150x12mm bolt and cut the head off, so I did that and started the drilling.  Except once I had done the pilot hole, I couldn't get the cutting speed slow enough so I kept galling the drill bits.

Right idea, wrong execution.

I tracked down a guy around the corner - trade qualified fitter who does home-jobs.  Dropped him a new bolt yesterday with a hand-drawn sketch, and picked this up this afternoon.  Then he almost apologised for charging me $10.  I gave him $20.

I've found my new go-to fabricator/engineer.

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So I take it your "modified bolt" is mounted vertically in the tiller to lift the pin 100mm? If so the autopilot will have massive leverage and I expect the "modified bolt" will either crack the tiller or get very sloppy very quickly...

 

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1 hour ago, Cameron said:

So I take it your "modified bolt" is mounted vertically in the tiller to lift the pin 100mm? If so the autopilot will have massive leverage and I expect the "modified bolt" will either crack the tiller or get very sloppy very quickly...

 

Wouldn't have thought so.  Unless the rudder jams solid, there is not a lot of side load on the bolt given the depth of the bolt in the tiller (about 45mm).

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Another little project going on is the adjustable sheet leads for the Genoa.

I posted in the tech area on the 3mm dyneema that will be the adjusting line for these.  It looks like I'll be able to run a 3:1 purchase through these low friction rings.  That will be controlled by a 2:1 purchase set up in normal blocks with cam cleats and 6mm braid.

The low friction rings are 50mm diameter, 10mm cross section and weigh 33g on our electronic kitchen scales.  Through AliExpress they landed on my doorstep for $6.70 each ( I got 6 of them).  They are rated to 22kn, and will take a far higher static load than our rig will ever put on them.

I'll post up pictures of it all rigged up once it's in place.  A sunny afternoons labour.

IMG_20220505_205712.jpg

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17 hours ago, SanFran said:

Great story.  I have a Spencer 32. First boat of substance.  Still having fun with her after 10 years.  

I've seen San Fran up the Tamaki.  I keep meaning to get in touch and come have a look at her.  If you are keen, message me and we can get together.  We are scheduled (loosely) to be on the hard at PYBC next month.

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Absolutely.  Been a bit coolish lately but still keen to get out.   I'm on the haul out Crew at HMB, and planning to come out probably Oct or Nov for a week or so.  Otherwise, here comes summer

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