All 31 pages of this Yanmar TNV Series Parts Catalog zero in on the 3TNV70-ASA, 3TNV70-GGE, 3TNV76-GGE, 3TNV76-HGE, and related diesel engine variants, with exploded views and OEM part numbers from cylinder block to gasket set. Inside: factory parts diagrams for every major assembly, covering cylinder head and bonnet, crankshaft and piston, fuel injection pump, governor, starting motor, and generator. You get cross-referenced part numbers across the full TNV family, so identifying the right component for your specific engine takes seconds instead of a wasted call to the dealer. The thermostat opens at 71°C and the thermo switch trips at 110°C, both listed with their exact part numbers in the cooling water section. Wrong part number on the first order costs you a week. Download now, bring it up on your phone, and order the correct part with confidence.
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| 3TNV76-NBK, 3TNV76-GGE, 3TNV76-HGE | ||
| THERMOSTAT operating temperature | 71C | p. 12 |
| THERMO SWITCH activation temperature | 110 C | p. 12 |
| Main Metal Under-size | 0.25 | p. 3 |
| Piston Ring Over-size | 0.25 OS | p. 10 |
| Oil Pressure Switch Setting | 0.5KG | p. 11 |
| Thermostat Switch Temperature | 110 C | p. 12 |
| Governor Link Length | L=29.3 | p. 15 |
| Governor Shim Thickness | T=0.6 | p. 15 |
| Timer Duration | 3SEC | p. 23 |
| Parallel Pin Size | 8X16 | p. 5 |
| 3TNV70-GGE, 3TNV70-ASA, 3TNV70-HGE | ||
| Cooling Fan Diameter | 310 | p. 30 |
| 3TNV70-GGE, 3TNV70-ASA, 3TNV70-HGE, 3TNV76-GGE, 3TNV76-CSA, 3TNV76-HGE | ||
| Extension Cord Length | 2M | p. 31 |
Yanmar Yanmar 3TNV70-3TNV76 Series Common Problems This Manual Covers
Yanmar 3TNV76-GGE engine running hot under load or boiling over coolant from the reservoir p. 12
Inspect the exploded view of the cooling system on page 12. Locate the thermostat operating at 71C and the thermo switch rated for 110 C. Cross-reference the part numbers in the index to ensure you order the exact components for your specific block.
Manual Section: 010.PdfSudden loss of oil pressure indication and warning light flashing repeatedly during normal operation p. 11
Check the parts breakdown on page 11 to identify the correct oil pressure switch. Verify you select the switch calibrated for a 0.5KG setting. Match the OEM part number listed below the diagram to guarantee proper compatibility with your engine block assembly.
Manual Section: 009.PdfHard starting, severe loss of compression, and excessive blowby from worn piston rings p. 3
Review the engine parts diagram on page 3 to find the 0.25 main metal under-size bearings. Next, check page 10 to locate the 0.25 OS piston ring sets. Compare these specific part numbers against your required repair list before ordering replacement hardware.
Manual Section: 001.PdfMissing or damaged wiring harness extensions prompting intermittent electrical faults or starter relay clicking p. 31
Inspect the electrical parts breakdown on page 31. Find the correct replacement extension cord listed with a 2M length. Match the OEM part number provided in the index to guarantee proper harness routing and secure connections across your equipment assembly.
Manual Section: 019.PdfFrequently Asked Questions
How do you fix yanmar 3TNV76-GGE engine running hot under load or boiling over coolant from the reservoir?
Inspect the exploded view of the cooling system on page 12. Locate the thermostat operating at 71C and the thermo switch rated for 110 C. Cross-reference the part numbers in the index to ensure you order the exact components for your specific block.
How do you fix sudden loss of oil pressure indication and warning light flashing repeatedly during normal operation?
Check the parts breakdown on page 11 to identify the correct oil pressure switch. Verify you select the switch calibrated for a 0.5KG setting. Match the OEM part number listed below the diagram to guarantee proper compatibility with your engine block assembly.
How do you fix hard starting, severe loss of compression, and excessive blowby from worn piston rings?
Review the engine parts diagram on page 3 to find the 0.25 main metal under-size bearings. Next, check page 10 to locate the 0.25 OS piston ring sets. Compare these specific part numbers against your required repair list before ordering replacement hardware.
How do you fix missing or damaged wiring harness extensions prompting intermittent electrical faults or starter relay clicking?
Inspect the electrical parts breakdown on page 31. Find the correct replacement extension cord listed with a 2M length. Match the OEM part number provided in the index to guarantee proper harness routing and secure connections across your equipment assembly.
How will I receive this Yanmar 3TNV76-GGE & variants Parts Catalog?
A 31-page Parts Catalog in searchable PDF format, available the moment you complete checkout. View on computer, tablet, or phone, with no shipping wait.
Am I able to print pages from this manual?
Yes. The PDF has no DRM restrictions, so print any page or section you need for your shop. Works with any standard printer.
Document Quality
This document is a scanned PDF with an OCR layer, allowing you to search and copy the main text. The text quality is crisp and easy to read throughout the catalog. Diagrams and illustrations are raster images, generally clear, with labels remaining readable. Pages are clean with no significant scan artifacts, stains, or skewed content. There are no notable blank or filler pages included.
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