{"product_id":"marine-diesel-baseline-trend-log-pdf","title":"Marine Diesel Baseline \u0026 Trend Log PDF — Reference, Baseline \u0026 Deviation Record","description":"\u003cp style=\"font-size:1.05em;line-height:1.7;\"\u003e\u003cstrong\u003eEvery published table of “normal” engine readings was written for somebody else's engine.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eOil pressure alarm points, coolant limits, exhaust gas temperatures and wear limits differ between manufacturers, between models from the same manufacturer, and between two installations of the same engine. A figure that is right for a Yanmar 4JH is wrong for a Volvo D2, and both are wrong for whatever is in your engine bay unless somebody checked.\u003c\/p\u003e\n\n\u003cp\u003eSo this log is built the other way round. You transcribe your own engine's figures from your own manual, once, onto a reference page. You record one full set of readings while the engine is in a state you are willing to call good. Every entry after that measures itself against both.\u003c\/p\u003e\n\n\u003cdiv style=\"background:#0A3F5C;border-left:4px solid #C5A059;border-radius:4px;padding:22px 24px;margin:26px 0;color:#F7F9FA;\"\u003e\n  \u003cp style=\"margin:0 0 4px;font-size:0.72em;letter-spacing:0.14em;text-transform:uppercase;color:#C5A059;font-weight:700;\"\u003eWhat you receive\u003c\/p\u003e\n  \u003cp style=\"margin:0 0 14px;font-size:1.25em;line-height:1.35;color:#FFFFFF;\"\u003eA seven-part record for the life of the engine\u003c\/p\u003e\n  \u003cul style=\"margin:0;padding-left:18px;line-height:1.75;color:#DCE6EC;\"\u003e\n    \u003cli\u003e\n\u003cstrong style=\"color:#FFFFFF;\"\u003eA 28-line reference page\u003c\/strong\u003e for the figures and intervals you transcribe, with the manual page recorded beside each\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong style=\"color:#FFFFFF;\"\u003eAn 8-line alarm register\u003c\/strong\u003e comparing the manual's set points against what is actually fitted to your panel\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong style=\"color:#FFFFFF;\"\u003eA commissioning baseline\u003c\/strong\u003e over six RPM steps, with the conditions that make it comparable\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong style=\"color:#FFFFFF;\"\u003e16 trend entries plus 4 full sweeps\u003c\/strong\u003e — two minutes at cruise, every time you use the boat\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong style=\"color:#FFFFFF;\"\u003eFault code and event registers\u003c\/strong\u003e, including the codes that cleared themselves\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong style=\"color:#FFFFFF;\"\u003e6 calculation models\u003c\/strong\u003e for deviation, drift rate, heat exchanger differential and interval consumed\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/div\u003e\n\n\u003ch3 style=\"color:#0A3F5C;margin:30px 0 8px;\"\u003eA reading is a moment. A trend is a warning.\u003c\/h3\u003e\n\u003cp\u003eA coolant temperature that sits inside a generic band tells you very little. The same temperature, eight per cent above where your own engine ran at the same revs two hundred hours ago, tells you something is happening.\u003c\/p\u003e\n\u003cp\u003eThat is why the hours column is not optional and why the RPM must be the same every time. Model M3 turns two entries and the hours between them into a rate of drift — which is the difference between a logbook and a prediction.\u003c\/p\u003e\n\n\u003cdiv style=\"background:#F7F9FA;border:1px solid #E1E8EC;border-left:4px solid #A2803C;border-radius:4px;padding:20px 22px;margin:26px 0;\"\u003e\n  \u003cp style=\"margin:0 0 6px;color:#0A3F5C;font-weight:700;\"\u003eNot one published threshold. Deliberately.\u003c\/p\u003e\n  \u003cp style=\"margin:0;line-height:1.7;\"\u003eYou will not find a normal range, a wear limit or a service interval of our own anywhere in this document. An owner who reads “low oil pressure below 2.0 bar” in a general guide, on an engine whose maker alarms at 2.8, keeps running an engine that should be stopped. An owner who reads “over 95 °C is critical”, on an engine that runs normally at 92, shuts down his propulsion mid-passage. Both errors come from a number written for a different engine. This log removes the number and keeps the arithmetic.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003ch3 style=\"color:#0A3F5C;margin:30px 0 8px;\"\u003eWhat it is worth to a buyer, a surveyor and an insurer\u003c\/h3\u003e\n\u003cp\u003eAn engine with a completed log of this kind is a different proposition from an engine with a shoebox of receipts. It shows the intervals were kept against the manufacturer's own figures, it shows what drifted and when, and it shows which faults appeared and how they were resolved.\u003c\/p\u003e\n\n\u003ch3 style=\"color:#0A3F5C;margin:30px 0 8px;\"\u003eWho it is for\u003c\/h3\u003e\n\u003cul style=\"line-height:1.75;\"\u003e\n  \u003cli\u003eOwners who have just bought and want a baseline before anything drifts\u003c\/li\u003e\n  \u003cli\u003eOwners who inherited an engine with no history and need to start one\u003c\/li\u003e\n  \u003cli\u003eAnyone planning a passage where the engine matters more than usual\u003c\/li\u003e\n  \u003cli\u003eOwners preparing to sell, who want the engine to speak for itself\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3 style=\"color:#0A3F5C;margin:30px 0 8px;\"\u003eTechnical specification\u003c\/h3\u003e\n\u003ctable style=\"width:100%;border-collapse:collapse;font-size:0.95em;margin:12px 0 4px;\"\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:9px 0;border-bottom:1px solid #E1E8EC;color:#0A3F5C;font-weight:600;width:42%;\"\u003eProduct ID\u003c\/td\u003e\n\u003ctd style=\"padding:9px 0;border-bottom:1px solid #E1E8EC;\"\u003eAML-MECH-2026-01\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:9px 0;border-bottom:1px solid #E1E8EC;color:#0A3F5C;font-weight:600;\"\u003eExtent\u003c\/td\u003e\n\u003ctd style=\"padding:9px 0;border-bottom:1px solid #E1E8EC;\"\u003e26 pages · 7 parts · 6 calculation models\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:9px 0;border-bottom:1px solid #E1E8EC;color:#0A3F5C;font-weight:600;\"\u003eRegister lines\u003c\/td\u003e\n\u003ctd style=\"padding:9px 0;border-bottom:1px solid #E1E8EC;\"\u003e142 across reference, baseline, trend, events and service\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:9px 0;border-bottom:1px solid #E1E8EC;color:#0A3F5C;font-weight:600;\"\u003eInteractivity\u003c\/td\u003e\n\u003ctd style=\"padding:9px 0;border-bottom:1px solid #E1E8EC;\"\u003e906 live PDF form fields — 64 tick boxes and 842 entry fields\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:9px 0;border-bottom:1px solid #E1E8EC;color:#0A3F5C;font-weight:600;\"\u003eFormats included\u003c\/td\u003e\n\u003ctd style=\"padding:9px 0;border-bottom:1px solid #E1E8EC;\"\u003eA4 and US Letter, both fillable and print-ready\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:9px 0;border-bottom:1px solid #E1E8EC;color:#0A3F5C;font-weight:600;\"\u003eEngines\u003c\/td\u003e\n\u003ctd style=\"padding:9px 0;border-bottom:1px solid #E1E8EC;\"\u003eAny marine diesel — the document carries no engine-specific data\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:9px 0;border-bottom:1px solid #E1E8EC;color:#0A3F5C;font-weight:600;\"\u003eUnits\u003c\/td\u003e\n\u003ctd style=\"padding:9px 0;border-bottom:1px solid #E1E8EC;\"\u003eUnit-neutral — you set them and record which you used\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:9px 0;border-bottom:1px solid #E1E8EC;color:#0A3F5C;font-weight:600;\"\u003eOffline\u003c\/td\u003e\n\u003ctd style=\"padding:9px 0;border-bottom:1px solid #E1E8EC;\"\u003eNo app, no account, no connection required once downloaded\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3 style=\"color:#0A3F5C;margin:30px 0 8px;\"\u003eWhat it is not\u003c\/h3\u003e\n\u003cp\u003eThis document records, structures and compares figures that you supply. It publishes no threshold, no normal range and no limit, and it reaches no conclusion about any engine or installation. It is not a service manual and not engineering advice. It is not prepared by a qualified marine engineer and does not substitute for one.\u003c\/p\u003e\n\u003cp\u003eWhere a reading matters, the decision belongs to a qualified engineer working from the manufacturer's documentation for your serial number. Nothing here instructs you to run, load, dismantle or adjust an engine.\u003c\/p\u003e\n\n\u003cp style=\"margin-top:26px;\"\u003e\u003cstrong style=\"color:#0A3F5C;\"\u003eInstant download.\u003c\/strong\u003e Your links appear on screen the moment payment clears, and arrive by email within a minute. They do not expire.\u003c\/p\u003e\n\n\u003cp style=\"font-size:0.9em;color:#5C6B75;line-height:1.65;margin-top:22px;border-top:1px solid #E1E8EC;padding-top:16px;\"\u003e\u003cem\u003e2026 Captain's Edition · Revision 1.0 · AML-MECH-2026-01. Apex Marine Labs designs the organisational process behind good seamanship. Our documents record and organise; they do not replace a certified marine survey, a service manual, or a qualified marine engineer.\u003c\/em\u003e\u003c\/p\u003e","brand":"Apex Marine Labs","offers":[{"title":"2026 Captain's Edition","offer_id":56013836517544,"sku":"AML-MECH-2026-01","price":97.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/1161\/2072\/files\/apex-diesel-baseline-log-01-cover.webp?v=1789746400","url":"https:\/\/apexmarinelabs.com\/products\/marine-diesel-baseline-trend-log-pdf","provider":"Apex Marine Labs","version":"1.0","type":"link"}