Recent posts

#21
Main Message Board / Help Please! I’m completely lo...
Last post by KeelsonGraham - Yesterday at 11:57:21 AM
I think I must be going nuts. I'm trying to replace what I believe to be the hose from the freshwater pump to the HX. That's the hose circled in red in the attached photo? Is that right?

Because if it is, then I ordered the correct part from CD, the hose with a 7/8th in internal diameter. But when I tried to fit it on today it's way too big. The existing pipe is on there at the moment and it fits just fine (with its smaller ID).

I don't have some non-standard HX, so whatever is in there at the moment must be standard. So how in hell is it not a 7/8th ID hose????
#22
Main Message Board / Re: conversion to propane
Last post by Patches - Yesterday at 11:46:53 AM
Hi Cliff:

I also have a Mark 1.25. My boat has the propane locker in the aft seat locker—mounted on the platform on the starboard side.  These can be purchased from Catalina Direct (white with blue top) and take the smaller size propane bottles which can be purchased cheaply at any RV supply place. Mine vents from the locker out through the stern to the swim step.

I've never run out of propane during a standard 3 week cruise.  I carry a spare bottle in the port lazarette just in case.

Patches
#23
Main Message Board / conversion to propane
Last post by crieders - Yesterday at 11:09:02 AM
I still have the original CNG installation
would like to convert to Propane but of course do not have a propane locker and that boat has the simple sugar scoop stern, no walk thru
so where to put it, is my concern. Thanks
#24
Main Message Board / Re: Shore Power Circuit Breake...
Last post by Craig Illman - Yesterday at 03:41:07 AM
Tom - On a boat of your vintage, CTY didn't install a separate breaker (from the panel) closer to the shore power receptacle as specified in in current ABYC standards.

Craig
#25
Main Message Board / Re: Keel Bedding Survey
Last post by KWKloeber - May 15, 2024, 10:49:23 PM
Quote from: High Current on May 14, 2024, 08:26:16 PMMy main reason to re-bed NOW would be to preserve integrity of the bolts.  BUT if I weren't going through this process I probably wouldn't be worrying about it...
Correction,
The Main reason ..... IF I EVEN NEED to rebed is...
I don't understand the foregone conclusion that you need to rebed (i.e., the bolts are compromised)?


QuoteDoes it crush the solid glass or only the wood core that I don't have?

at 105 ft-lb = ~10,000 lbf
 ≈ 25 MPa of stress.
But the entire section isn't compressed, just the topmost (floated?) layer of resin gets compromised.
 
https://www.boatdesign.net/attachments/fiberglass-strength-tests-pdf.148849/
Shows that the compressive strength of cured fiberglass resin is 55-mPa.

For a nominal 3/4" ID washer the stress @ 10,000#f would be ~30-mPa (if the nut doesn't bend the fender washer.)  Close enough to be possible considering that, naturally, strength depends on resin/hardener quality/characteristics and the quality of application.
#26
Main Message Board / Re: ? Sudden overheating?
Last post by KWKloeber - May 15, 2024, 08:32:06 PM
Craig

The more I remotely wrap my feeble brain think about this, the more it leans toward the gauge. 

The Teleflex troubleshooting is checking only two extreme circumstances and nothing in between, like a "norm" midpoint.
It **could** be that the gauge pins high at anything above infinite resistance (when the S terminal is disconnected.)
Or it could read significantly high when the S resistance "says normal."


I couldn't see the forest -- (unless you have access to some resistors in the 50-ohm range to completely bypass the sender,) remove the sender and hook it up to the S and G terminals right at the gauge. 
If she still pins high (and the sender has a reasonable resistance value for the ambient temp,) your gauge is likely kaput. ***

***I say "likely" because it's a boat and we know that there are never any absolutes!
#27
Main Message Board / Re: ? Sudden overheating?
Last post by KWKloeber - May 15, 2024, 08:00:33 PM
Quote from: Schulcb on January 14, 2024, 10:13:57 AMAm I correct that if the sender isn't grounding to the engine (teflon tape), I would get a high temp reading?
The gauge **should** pin low if the sender is not grounded to the engine block (or read low if the ground has high resistance.)
When the gauge S terminal is grounded it **should** pin high.


Quote from: Schulcb on May 15, 2024, 03:15:23 PMIf the ground to the instrument panel is the culprit, wouldn't all of the gauges be giving incorrect readings?
The voltmeter could read OK because there is very low current to the panel gauges, so virtually no voltage loss.

The Tach "reads" the pulses from the alternator (the frequency of the AC output, not the amplitude.)  A voltage above about 7v will drive the tach, so it may read ok.

(I have no clue how your fuel gauge is wired) but it was common for CTY to run a separate ground from the fuel gauge direct to the tank bonding screw, so that may read OK.  You should be able to see if it has a separate ground.

Try checking the panel ground wire - for resistance to the engine block (is that where the ground is  established for the panel?)  You'd need to run a temporary wire back up to the panel to use as reference (or use the old temp sender wire if it is still there.)  HOWEVER, I'm not sure how the panel ground will affect the gauge reading. but I would not **think** it would make the gauge pin high.  That's something I have not run across before.

I find this good for troubleshooting
https://www.harborfreight.com/30-ft-retractable-test-leads-58024.html
I just wish that it was 16 gauge rather than 18.


I presume that your Temp alarm works?  Grounding the engine temp switch S wire to the block **should** sound the alarm.

This keeps pointing to a short to ground in the S wire but there is resistance there.   Maybe an intermittently bad gauge, but that is a huge coincidence that it goes intermittently bad between removing and reconnecting the S wire.

Does she have the Westerbeke black plugs on the harness (at the rear of the engine?)

This is real headscratcher since you already replaced the S wire.
#28
Main Message Board / Re: Shore Power Circuit Breake...
Last post by KWKloeber - May 15, 2024, 06:39:43 PM
EDIT
What is the brown conductor for on the terminal strip? 
Brown is not a color that should be used on her  AC system.

For background what issue are you having with the shore power system?



Ok technically speaking, that is a terminal strip (do not always believe what an Owner's Manual says or CTY's terminology.)

Which black/white wires are from the SmartPlug?

It would be helpful if you post a pic of the front and back of your distribution panel.
#29
Main Message Board / Re: Shore Power Circuit Breake...
Last post by Tom Patterson - May 15, 2024, 05:42:51 PM
Below is a photo of the AC bus bar. There are five wires to black, white and green. Four of each fall below the bus bar and are wrapped in electrical tape. There is no breaker on the panel or anywhere behind it. The 12AWG triplex wire coming off the back of the Smartplug runs straight into the roof of the cabinet in the head and from there to the bus bar. Where would the breaker have been located originally? A picture of one either on the panel, behind it, or mounted somewhere else would be helpful.
#30
Main Message Board / Re: Shore Power Circuit Breake...
Last post by KWKloeber - May 15, 2024, 03:49:43 PM
The shore power should not run straight to the bus powering the circuits.

Ok, I'm not educated on what a PO did or your particular panel (post a pic?) but, generally, the shore power cable runs to the panel main breaker, which feeds the bus that feeds the various breakers/circuits/equipment (like water heater.) 

That's "generally" - on my '84 panel for instance there's no bus; the 30a Main feeds to the Pos and Neutral terminal strips and individual fuses are wired to the Pos terminal strip.