Τι έχει βρει ο στόλος
Diesel cooling & overheating — τι έχει βρει ο στόλος
Συγκεντρώθηκε από όσα έχουν αναφέρει τα πληρώματα στα δικά τους σκάφη — εμπειρία, όχι οδηγίες. Κάθε ισχυρισμός συνδέεται με τη στιγμή που ειπώθηκε.
A diesel engine runs hot by design, but when the temperature climbs past its working range, the cooling system has already failed somewhere upstream. The announcement varies—steam in the exhaust, an alarm, smoke in the bilge, or simply no water coming out the side—but the hunt that follows moves through the same circuit, component by component, until the blockage or break shows itself.
Αναθεωρήθηκε 13 Αυγούστου 202641 στιγμές · 22 κανάλια
Ενότητα 1
Impellers
The most common impeller failure is broken blades, which reduces raw water flow and lets the engine overheat. The symptom arrives as steam in the exhaust or no water discharging overboard. Sailing Parlay Revival lost engine power in a storm and found many fins missing from the impeller, then searched the system for the fragments to prevent downstream blockages. 10:22 Keeldragger found two blades completely detached and others ready to break, which explained the steam in the exhaust. 12:22 Crews diagnose this by pulling the pump cover and inspecting the impeller directly. Sailing With Phoenix | Oliver, replacing an impeller, noted a significant difference in fin count between the old and new parts, underscoring the need for careful comparison. 5:12 Installation technique matters: Maruzza's Horizons greased the housing and rotated the shaft clockwise to walk the new impeller into place. 12:41 The critical lesson is accounting for every missing piece. Fragments travel downstream into the heat exchanger and other narrow passages, turning a simple impeller failure into a system-wide blockage. An impeller that comes out whole moves the hunt downstream.
Sailing With Phoenix | Oliver compared the old and new impellers, noting a difference in the number of fins.
Οι Στιγμές
Κάθε σειρά είναι ένα πλήρωμα, πάνω στο δικό του σκάφος, τη στιγμή που προέκυψε.
- ΚανάλιΣτιγμή
Δεκ 2025ENGINE FAILURE RIGHT IN THE MIDDLE OF A STORM - (Episode 343)Sailing Parlay Revival found many fins missing from the impeller and began searching for them.172,7 χιλ.10:22
Σεπ 2025Sailing to Ensenada, Mexico for some boat work (August 2025)keeldragger found two impeller blades completely off and others ready to go, causing steam in the exhaust.1,3 χιλ.12:22
Ιουν 2026NEW PLAN - We're Off | Sailing Florence Ep.233Sailing Florence discovered a leak from the raw water pump when starting the engine to move the boat.55,8 χιλ.2:39
Ιουν 2026Save $$$ Servicing Your Own 15HP Mercury Outboard (4-Stroke) Episode 494Sailing Catalpa removed four bolts to drop the leg of the outboard, ensuring it was supported.5,9 χιλ.10:59
Μαΐ 2026Don't Kill Your Outboard! Johnson! 8HP Oil Leak Fix, Step by StepMaruzza's Horizons greased the impeller housing and rotated the shaft clockwise to insert the impeller.32712:41
Εμφανίζονται οι πρώτες 5 από 6 στιγμές που συγκεντρώθηκαν για αυτή την ενότητα.
Ενότητα 2
Strainers
Crews consistently find that a reduction or cessation of cooling water flow is the primary indicator of a strainer issue, often leading to engine or generator overheating. Sailing Parlay Revival, for instance, noted no water exiting the boat and suspected an intake blockage 9:15. Similarly, Sailing Doodles observed their air conditioner ceasing to cool and found it was no longer discharging water 1:32.
The typical culprit is debris or marine growth obstructing the strainer basket or the seacock itself. Sailing Doodles discovered their seacock was barely dribbling water into the strainer, indicating a blockage at the intake 1:51. The Lazy Geckos™ checked their generator's strainer for debris after it overheated, though they found none in that instance 0:30.
Crews routinely address these issues by inspecting and cleaning the strainer baskets. Sailing Doodles cleaned algae growth from their air conditioner's strainer basket when it stopped cooling 1:32. When a blockage is suspected further down the line, crews have attempted to clear it by blowing back through the system; Sailing Parlay Revival used a hose to blow back through the intake after removing the strainer 9:15.
Sailing Parlay Revival found no water coming out the side of the boat and suspected a blocked intake or strainer.
Οι Στιγμές
Κάθε σειρά είναι ένα πλήρωμα, πάνω στο δικό του σκάφος, τη στιγμή που προέκυψε.
- ΚανάλιΣτιγμή
Μαρ 2026We Found a Hidden Village Built Over the Ocean in ThailandSailing Doodles found the seacock barely dribbling into the strainer, indicating a blockage.222,1 χιλ.1:51
Ιουλ 202510 Years of Sailing....Everything is breaking! - The Lazy Geckos Ep. 329The Lazy Geckos ™ checked the water pump and strainer for debris after the generator overheated, finding none.51,4 χιλ.0:30
Μαρ 2026A change of direction. Sailing towards somewhere different. Sam Holmes Sailing attempted to open the sea strainer after the port engine stopped pumping water.56,5 χιλ.18:50
Ενότητα 3
Heat Exchangers
Weed and shell do their damage before the pump ever sees them, but impeller fragments and calcium scale accumulate inside the heat exchanger itself, where seawater cools the engine coolant through a bundle of narrow tubes. Alfredo Contaldo emphasized that a broken impeller demands attention to the heat exchanger, as fragments lodge there and block flow. 1:47 SmoCo Sailing, despite their engine running well, removed their heat exchanger due to calcium buildup and sent it for professional cleaning. 6:31
Crews typically disassemble the unit to extract the tube bundle, a process Alfredo Contaldo demonstrated by removing headers, gaskets, and O-rings. 11:50 After cleaning, he planned to replace all gaskets and O-rings to ensure a proper seal. 12:37 Salt & Tar disassembled and cleaned their heat exchanger manifold in preparation for a new unit. 10:05 While some crews, like Ale & Max - Y2K Sailing Adventure, prefer professional oversight for significant engine work, others undertake the cleaning and overhaul themselves.
Alfredo Contaldo removed the heat exchanger's headers, gaskets, and O-rings to extract the tube bundle.
Οι Στιγμές
Κάθε σειρά είναι ένα πλήρωμα, πάνω στο δικό του σκάφος, τη στιγμή που προέκυψε.
- ΚανάλιΣτιγμή
Ιουλ 2025[Ep 17] Prepping the Sailboat for Mexico Cruising | Routine Maintenance Threw Us a CurveballSmoCo Sailing removed the heat exchanger to address calcium buildup, planning to have it professionally cleaned.1,4 χιλ.6:31
Μαρ 2026VOLVO PENTA D2-55 HEAT EXCHANGER tutorial disassembly and overhaul of tube bundle and riser ⛵Alfredo Contaldo planned to wash and reassemble the heat exchanger, replacing all gaskets and O-rings.3,7 χιλ.12:37
Εμφανίζονται οι πρώτες 5 από 6 στιγμές που συγκεντρώθηκαν για αυτή την ενότητα.
Ενότητα 4
Exhaust & Mixing Elbows
The same symptom arrives from the other end of the circuit, and it arrives more slowly. The exhaust mixing elbow, where raw seawater combines with engine exhaust, corrodes from the inside, restricting flow and trapping heat. BoatHowTo consulted Nigel Calder, who emphasized the elbow's role in injecting raw seawater into the exhaust. 1:20 Crews have observed that manufacturers' recommendations for elbow replacement can be based on worst-case scenarios to protect the manufacturer, but neglecting this component has serious consequences. Diagnosis involves inspecting the elbow for blockages or leaks. Alfredo Contaldo demonstrated removing the exhaust riser from the manifold by unscrewing four bolts, making inspection accessible. 7:02 Untide installed a repaired exhaust elbow on their generator, highlighting its function in mixing coolant water with exhaust before discharge. 9:57 The Mariner considered a compromised exhaust as a potential cause for engine stoppage, wondering if water ingress from waves could lead to hydraulic lock. 0:49 Sampson Boat Co serviced and cleaned the heat exchanger as part of regular scheduled maintenance. 14:41
Untide installed a repaired exhaust elbow on the generator to mix coolant water with exhaust gases.
Οι Στιγμές
Κάθε σειρά είναι ένα πλήρωμα, πάνω στο δικό του σκάφος, τη στιγμή που προέκυψε.
- ΚανάλιΣτιγμή
Απρ 2026Engine Suddenly Stopped Working Offshore — Is It Hydraulic Lock?The Mariner considered that water from waves might have entered the exhaust, causing a hydraulic lock.17,3 χιλ.0:49
Φεβ 2026Container Ships and Crocodiles; navigating the perils of Panama on a wooden sailboat!Sampson Boat Co performed scheduled maintenance by servicing and cleaning the heat exchanger.289,9 χιλ.14:41
Σεπ 2025Sailing Across the Pacific on the Worlds Most Beautiful Boat! (Pt 1)Untide showed the wet exhaust mixing elbow for the generator, explaining its function.18 χιλ.8:13
Εμφανίζονται οι πρώτες 5 από 6 στιγμές που συγκεντρώθηκαν για αυτή την ενότητα.
Ενότητα 5
Thermostats
Thermostats regulate engine temperature, but their failure can lead to overheating or, less commonly, an engine running too cool. Normal operating temperatures vary widely between engines—some running cool, others hot, with one Volvo Penta D275 operating near boiling point at 93°C 1:25—so a sudden change in temperature or unexpected behavior points to a thermostat issue.
Wildling Sailing experienced pipes popping off and exploding when their engine ran at high revs, leading them to suspect a thermostat issue. 21:53 The Sailing Brothers encountered an outboard engine not passing enough water, prompting them to investigate a potentially blocked thermostat by removing its cover. 11:20 Sam Holmes Sailing ran the engine for a couple of minutes after it overheated before shutting it down, later wishing they had turned it off sooner, and needed to let it cool and refill fluids while determining the cause of the overheating. 11:14
Crews often physically access the thermostat for inspection. Salt & Tar planned to drain fluid and remove the thermostat housing after their engine sat with saltwater internally. 4:41 Ale & Max – Y2K Sailing Adventure, after installing an O-ring, proceeded to check the thermostat as part of their engine overhaul. 12:25
Sam Holmes Sailing found the engine had overheated and needed to cool down, with no oil visible.
Οι Στιγμές
Κάθε σειρά είναι ένα πλήρωμα, πάνω στο δικό του σκάφος, τη στιγμή που προέκυψε.
- ΚανάλιΣτιγμή
Δεκ 2025Whats a NORMAL TEMPERATURE for a Diesel Engine ? | Ask The Expert with NIGEL CALDERBoatHowTo explained that normal diesel engine temperatures vary, with some running cool and others, like their Volvo Penta, running hot.2,8 χιλ.1:25
Απρ 2026Trying to Leave the Marina… But It’s Not HappeningWildling Sailing found a pipe had popped off after running the engine at high revs, suggesting a thermostat issue.84,3 χιλ.21:53
Οκτ 2025Salt & Tar: Ep.312- Rollercoaster of EmotionSalt & Tar planned to drain fluid and remove the thermostat housing after the engine sat with saltwater for nine months.61,9 χιλ.4:41
Ιουν 2026A Cruisers Nightmare "Scammed By a Child On Facebook Marketplace" The Sailing Brothers suspected a blocked thermostat on their outboard, requiring removal of a cover to access it.22 χιλ.11:20
Μαΐ 2026All this for a HOLE in the Teak! (Engine and Water Heater Overhaul) | Ep. 09/2026Ale & Max - Y2K Sailing Adventure checked the thermostat after installing an o-ring.4 χιλ.12:25
Ενότητα 6
Diagnosing Overheating
Overheating announces itself through alarms and smoke in the bilge, as Sam Holmes Sailing experienced after turning off their engine. 10:24 A common outcome is the engine entering derate mode, which left 45 Degrees Sailing drifting. 4:54 Keeldragger observed steam in the exhaust even when their engine ran cool, indicating a less obvious issue. 7:46
The fleet traced most overheating to the raw water cooling system. Keeldragger ultimately found a clogged heat exchanger and a raw water pump impeller with two missing blades. 12:22 The heat exchanger uses colder seawater to cool engine coolant, and modern diesels incorporate complex systems like diesel exhaust fluid and diesel particulate filters, which rely on exhaust gas coolers that utilize engine coolant, as discussed by The Sailing Doodles Podcast. 4:00 The Sailing Doodles crew reported that the generator motor controller was getting too hot to touch and was shutting the generator down despite having a coolant pump for it. 7:59
keeldragger observed steam in the exhaust but noted the engine was running cool, not overheating.
Οι Στιγμές
Κάθε σειρά είναι ένα πλήρωμα, πάνω στο δικό του σκάφος, τη στιγμή που προέκυψε.
- ΚανάλιΣτιγμή
Μαΐ 2026We almost lost the boat's engine 😱 Our worst nightmare (Vlog 124)Vagabond Voyages found their engine wouldn't start after a week of disuse, leading to an unexpected problem.8,3 χιλ.7:42
Απρ 2026First Sail of 2026! Here's What Happened45 Degrees Sailing's engine overheated and entered derate mode, causing them to drift in the bay.9504:54
Εμφανίζονται οι πρώτες 5 από 7 στιγμές που συγκεντρώθηκαν για αυτή την ενότητα.
Πίστωση
Σε ποια πλάνα βασίζεται αυτό
Κάθε στιγμή παραπάνω κινηματογραφήθηκε από ένα από αυτά τα πληρώματα, πάνω στο δικό τους σκάφος.
45 Degrees Sailing30 χιλ. συνδρομητές · 464 βίντεο
Ale & Max - Y2K Sailing Adventure7 χιλ. συνδρομητές · 218 βίντεο
Alfredo Contaldo28 χιλ. συνδρομητές · 122 βίντεο
BoatHowTo11 χιλ. συνδρομητές · 152 βίντεο
keeldragger4 χιλ. συνδρομητές · 230 βίντεο
Maruzza's Horizons933 συνδρομητές · 18 βίντεο
Sailing Catalpa55 χιλ. συνδρομητές · 544 βίντεο
Sailing Doodles757 χιλ. συνδρομητές · 982 βίντεο
Sailing Florence149 χιλ. συνδρομητές · 240 βίντεο
Sailing Parlay Revival415 χιλ. συνδρομητές · 383 βίντεο
Sailing With Phoenix | Oliver90 χιλ. συνδρομητές · 71 βίντεο
Salt & Tar90 χιλ. συνδρομητές · 375 βίντεο
Sam Holmes Sailing284 χιλ. συνδρομητές · 421 βίντεο
Sampson Boat Co595 χιλ. συνδρομητές · 268 βίντεο
SmoCo Sailing801 συνδρομητές · 78 βίντεο
The Lazy Geckos ™ 170 χιλ. συνδρομητές · 372 βίντεο
The Mariner30 χιλ. συνδρομητές · 192 βίντεο
The Sailing Brothers42 χιλ. συνδρομητές · 359 βίντεο
The Sailing Doodles Podcast61 χιλ. συνδρομητές · 140 βίντεο
Untide148 χιλ. συνδρομητές · 89 βίντεο
Vagabond Voyages11 χιλ. συνδρομητές · 159 βίντεο
Wildling Sailing135 χιλ. συνδρομητές · 316 βίντεοΤο ενημερωτικό δελτίο
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