Premium Marine Engine Survey Report

M/V MAKAHA

2015 • 45.5 FT • Official #1310032 • Twin Volvo Penta D4-300 EVC Diesel Engines

Marine Engine Survey

Conducted by: Jeff Lendall & Sons — 805 Marine Diesel Mechanic

This survey documents the visual inspection, Volvo Penta ECU diagnostic review, operational testing, sea trial performance, cooling system concerns, generator observations, thruster zinc findings, oil leak finding, oil analysis samples, and repair estimate for the propulsion and related machinery aboard M/V MAKAHA.

Volvo Penta D4
TEXA ECU Scan
Sea Trial
Cooling System Review

Executive Survey Summary

As a result of my investigation, marine engine survey, computerized ECU diagnostic inspection, and sea trial, my opinion is that the overall engine rating is VERY GOOD. The engine room and engines appear to be well maintained, with the primary service concerns centered around deferred saltwater cooling system maintenance.

Overall Engine Rating:
VERY GOOD

Engine Room Condition:
Clean, tidy, and very well maintained

Primary Concern:
Saltwater cooling system service required

Important Finding: During WOT testing, coolant temperatures increased rapidly on both engines, suggesting the seawater side cooling systems require complete scheduled maintenance and servicing, including seawater pumps, heat exchangers, aftercoolers, lube oil coolers, transmission oil coolers, and associated cooling system components.

System Condition Matrix

System	Condition
Fuel System	Excellent
Lubrication System	Excellent
Electronic Controls	Excellent
Cooling System	Requires Service
Marine Transmissions	Very Good
Shaft Seals	Excellent
Steering & Rudders	Very Good
Generator System	Very Good
Bow & Stern Thrusters	Operational, zinc service required

Vessel & Engine Identification

Vessel	M/V MAKAHA
Official Number	1310032
LOA	45.5 FT
Year	2015

Specification	Port Engine	Starboard Engine
Engine Make	Volvo Penta	Volvo Penta
Engine Model	D4-300 EVC	D4-300 EVC
Engine Type	Inboard	Inboard
Power	300 HP	300 HP
Fuel Type	Diesel	Diesel
Hours	384	382
Serial Number	A376584VV 060760	A376956VV 060761
Transmission	ZF HS80AE-8	ZF HS80AE-8

Kubota Generator:

Model# V1505-BG-EF02
Serial Number: EKBXL01
Kilowatts: 16

TEXA Computerized ECU Diagnostic Findings — Volvo Penta D4-300 EVC

ECU Diagnostic Scan: Volvo Penta ECU diagnostic scan completed on both D4-300 engines with no active critical fault codes present at time of inspection.

Engine History: Engine ECU history showed no evidence of chronic overheat, low oil pressure, or major derate events.

Port Engine Hours: 384 total operating hours, consistent with overall vessel condition and service appearance.

Starboard Engine Hours: 382 total operating hours, showing balanced engine utilization between port and starboard.

Synchronization: Engine synchronization data appeared normal with no excessive load imbalance observed between engines.

Cold Start Data: Cold-start data was within acceptable parameters. Both engines started promptly without excessive crank time or smoke.

Fuel Rail Pressure: Fuel rail pressure readings remained stable throughout idle, cruise, and acceleration testing.

Turbocharger Boost: Turbocharger boost pressure values responded normally under load with no abnormal lag detected.

Coolant Temperature Under WOT: ECU monitored coolant temperatures remained within normal operating range during cruise RPM operation, but shot up quickly at WOT, suggesting that the saltwater system needs full scheduled maintenance performed.

Oil Pressure Under Load: Engine oil pressure data remained strong under load at approximately 68 PSI port and 70 PSI starboard at WOT.

Overall ECU Profile: ECU data and overall operational performance suggest the engines have been regularly exercised and generally well maintained, except for the saltwater cooling system.

Visual Engine Inspection Findings

Volvo Penta Marine Transmissions: Both ZF HS80AE-8 marine transmissions shifted smoothly with no abnormal noise, slippage, or vibration noted underway.

Fuel Filtration System: Racor Twin Turbine Series 900 fuel filter/water separator, 10 micron, port and starboard side filter assembly. No water present. Appeared serviceable.

Seawater Pump: Signs of seals leaking at weep holes on both engines and generator.

Tube-Type Heat Exchanger: Seemed to work fine except during the WOT test, when cooling water temperature came up very quickly.

Engine Oil Cooler: Checked inlet and outlet temperatures. All within parameters.

Cooling System Type: All three engines were pressure tested with leak down test to 25 PSI and all three passed the leak down test. Freshwater reservoir type cooling with seawater cooled wet exhaust operated satisfactory except for rapid temperature rise during WOT testing.

Hoses and Clamps: Double clamped where sighted. Stainless steel hose clamps on all three engines in like-new condition.

Dripless Shaft Seals: Seem to have adequate pressure. No leaks observed.

Bow & Stern Thrusters: Performed satisfactorily while docking. Both need to have the zinc anodes replaced.

Sea Trial Report

Sea Trial Item	Observation
Cold Start	Both Volvo Penta D4-300 EVC engines started promptly without excessive cranking, hesitation, or abnormal smoke during cold start.
Exhaust Appearance	Engine exhaust appearance remained normal throughout the sea trial with only minimal smoke noted for engines of this age and hours.
Cooling Water Discharge	Cooling water discharge appeared strong and consistent at idle, cruise, and acceleration testing.
Oil Pressure	Engine oil pressure remained strong under full load conditions at approximately 68 PSI port and 70 PSI starboard during WOT testing.
Transmission Operation	Both ZF HS80AE-8 marine transmissions shifted smoothly in and out of gear with no abnormal noise, slipping, vibration, or delayed engagement observed underway.
Thrusters	Both bow and stern thrusters performed adequately during tie up, but both need zincs replaced because they are loose.

WOT Cooling Concern: During WOT testing, coolant temperatures increased rapidly on both engines, suggesting the seawater side cooling systems require complete scheduled maintenance and servicing.

Oil Analysis Samples

The following oil analysis samples are included as part of the survey record:

Component	Oil Analysis Link
Starboard ZF HS80AE-8 Marine Transmission	STARBOARD ZF HS80AE-8 marine transmission
Port ZF HS80AE-8 Marine Transmission	PORT ZF HS80AE-8 marine transmission
Volvo Penta D4-300 Starboard Engine	Volvo Penta D4-300 STARBOARD ENGINE
Volvo Penta D4-300 Port Engine	Volvo Penta D4-300 PORT ENGINE
Kubota Marine Generator	Kubota Marine Generator

Engine room clean and tidy, very well maintained.

WOT Test — Both Engines Reached Full Rated RPM

Both engines reached full rated RPM of 3500 with very minimal smoke.

All three engines show signs of saltwater leaking out of weep holes. Saltwater pumps need to be replaced.

Oil Leak at Back of Engine

Oil leak at the back of the engine needs a new gasket.

Heat exchangers and aftercoolers showing excessive scaling. Service is needed.

Bow and stern thrusters both need zincs replaced because they are loose on the Allen head bolts.

Recommendations & Ballpark Estimate to Repair Maintenance Issues

Recommended Scope: Saltwater system descaling and service for all three engines.

Recommended Repair / Service	Estimated Labor
Replace three saltwater pumps	6 hours
Remove heat exchangers, lube oil coolers, and transmission lube oil coolers; pickle in descaling liquid; clean surfaces; install new gaskets and seals; replace components	28 hours
Replace gasket at back of engine where oil is leaking	2 hours
Replace zinc anodes on bow and stern thrusters	2 hours

Parts / Labor Item	Cost
Volvo Penta seawater pump — $940.00 x 2	$1,880.00
Kubota generator seawater pump	$548.00
Gaskets and seals	$226.00
Zinc anodes — $11.00 x 4	$44.00
Labor — 38 hours x $175.00/hr	$6,650.00
Total Hours & Labor	$9,348.00

Volvo Penta marine engine cooling system maintenance

Final Surveyor Conclusion

Based on ECU diagnostics, visual inspection findings, operational testing, oil analysis sampling, and sea trial observations, the propulsion systems aboard M/V MAKAHA appear mechanically sound and generally well maintained for engine age and operating hours.

Primary concerns are isolated to deferred seawater cooling-system maintenance and related service items identified throughout this report.

Pending correction of the cooling-system deficiencies, the engines demonstrated favorable operational characteristics including smooth cold starting, strong oil pressure, stable fuel delivery, minimal exhaust smoke, smooth transmission engagement, and proper electronic control operation.

Overall Machinery Condition: VERY GOOD

Professional Survey Notes

NOTICE:

The following statements limit the liability of the undersigned and set ethical standards associated with this report. Use of this report for any purpose constitutes acceptance of the following:

NOTE A: This report is issued without prejudice and is the property of the Requestor as listed above. Any use or distribution by another party is prohibited and shall render this report invalid.

NOTE B: This report is issued subject to the understanding that the undersigned surveyor is not responsible for error, omission, negligence, or misstatement. This report is a statement of my opinion based on the conditions as I found them. It is not a warranty, express or implied.

Survey Conducted By

Owner / Surveyor: Jeff Lendall

Jeff Lendall & Sons
805 Marine Diesel Mechanic

Call (805) 774-0637

VOLVO PENTA D4-300 EVC Marine Engine Survey