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Topics - ErikN

#1
Main Message Board / Another overheating problem
July 04, 2023, 09:07:19 AM
After some plumbing work on our M25, we refilled the coolant. We then went through the burping procedure, including hand-pumping coolant through the hot water heater. We also pressure-tested the system with the loaner tool from the auto store. Now the engine consistently overheats, but only at idle speed. If we increase the engine speed, the temperature stays around 160F, and continuously produces a stream of bubbles in the expansion tank. This has been going on long enough that I don't think it is just working an air bubble out of the system. The only other new symptom is an occasional screech, possibly the belt slipping (maybe we need to tighten it a bit, but it doesn't seem too loose) or perhaps a bearing in the coolant pump?

Does this sound like a coolant pump that is going bad and struggling to maintain sufficient flow at low rpm, or is there something else to check? Any thoughts would be appreciated--thanks in advance.
Erik
#2
Main Message Board / Muffler cracks
April 07, 2023, 10:03:50 AM
Since we bought our boat we've always smelled diesel exhaust in the salon after motoring. While working under the head sink, I took a close look at our muffler. The top and sides are laced with hairline cracks, and it looks like exhaust/water has been seeping through. All of the posts that I have seen describe problems around the inlet and outlet nipples and the corners, not on the solid faces of the muffler (but I could have missed some relevant posts). Also, it looks like a previous owner coated the area around the drain screw with adhesive of some sort. Based on the attached photos, does this look like the muffler can be repaired?
Erik
#3
Main Message Board / Instrument panel rewire
December 17, 2022, 07:36:31 AM
One of my winter projects is to rewire the instrument panel, and I thought some folks might enjoy this "before" photo of the rat's nest.

I also have one question: are there any conventions regarding wire colors for, e.g., the wires that connect the gauge positives, negatives, etc.? I'm aware of the ABYC conventions for the harness wire colors, but I'm curious about the short wires that run between posts on the back of the panel.
#4
Main Message Board / Fuel cutoff cable attachment
November 12, 2022, 09:34:27 AM
While I was working in the engine compartment, the fuel cutoff cable popped off the engine. Whatever attached the end of the cable to the lever on the engine disappeared, like a sock in the dryer. Of course, I'm glad this happened while we're tied up at the dock. However, I have no idea how to reattach the cable. I've studied the "Engine stop lever group" diagram in the M25 parts manual, but I still can't see how the cable should be attached. Does anyone know what parts, clamps, clips, etc., might be required?
#5
Main Message Board / Raw water pump flow
July 06, 2022, 08:16:49 AM
We're on an extended cruise and when we started the engine this morning the exhaust wasn't spitting water at its usual rate. We've checked the raw water line from the through hull through the strainer up to the (Oberdorfer) pump, and that is all clear. We also replaced the impeller (even though it looks fine). We then pulled the hose off the pump outlet and started the engine. The pump is producing water, but it seems a bit anemic. However, I don't know how much it should produce, i.e., a fast stream or just a modest flow?

I'm guessing we need a new pump, but any thoughts would be appreciated. I apologize if this has been covered elsewhere on the forum, but we have very limited bandwidth at our current (beautiful) anchorage.

Erik
#6
Main Message Board / Sole trim
July 06, 2021, 10:53:35 AM
Here's a trivia question for MkI owners: was there some sort of trim around the bilge access panels in the salon sole? Mine has a gap (photo attached) that is good at collecting dust bunnies, but I suspect there might originally have been something covering it.
Erik
#7
Main Message Board / Vberth chase trim
July 05, 2021, 11:03:09 AM
A couple of weeks ago we were sailing through some choppy water and the trim under the chases on each side of the vberth fell off. (The equivalent piece in the quarterberth fell off a while ago.) Now that we are back in the marina, I'd like to re-install them. It looks like there are a few pieces of wood glued into the chase, then the trim is attached to the the wood with screws (see attached photo), leaving room for wires up to the running lights on the bow pulpit.

Has anyone dealt with this before? I'm thinking I should just scrape off the old glue and re-glue the wood blocks back in place, but I'm open to suggestions, upgrades, etc. I couldn't find anything by searching the website, but I'm probably not using the correct terms.

I would appreciate any thoughts,
Erik
#8
Main Message Board / stove lid
January 08, 2021, 09:40:50 AM
I just joined the group, now that we have a new (to us) 1986 C34. We've been doing lots of upgrades, but I'm stuck on one simple problem: how to lift the lid of the propane stove, in order to clean under and around it. There is a clip on each side of the lid, but pushing these doesn't seem to disengage the lid and allow it to lift. Am I missing something stupid? The stove is a Seaward model #2174-2001.