PoseidonMarine® Overhaul kit Yanmar 6LP 24-valve 119770-00250 119771-00211 119771-00220
High-quality marine engine spare parts.
PoseidonMarine® Engine rebuilt kit for Yanmar 24-valve marine diesel engines:
- 6LP-STE 6LP-STZE 6LP-STZEP1
- 6LP-STP 6LP-STZP
- 6LPA-STE 6LPA-STZE 6LPA-STZEP1
- 6LPA-STP 6LPA-STZP
The following parts are included in this kit:
- Piston ring kit: 119770-00250
- Main bearing kit: 119770-02031 0.25US, OR STD
- Thrust bearing kit: 119770-00130
- Big-end bearing kit *
- Intake valves: 119771-00211
- Exhaust valves: 119771-00220
- Timing belt: 119771-00201
- Head gasket kit with valve stem seals: 119771-90210, 119775-11340 *
- Front crankshaft seal: 119770-90090
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Rear crankshaft seal: 119770-90290
Concerning the big-end (rod) bearing kit, you have to choose the right sizes:
- 119770-00260 Mark 2
- 119770-01010 Mark 3
- 119770-01020 Mark 4
- 119770-01030 Mark 5
- 119770-01040 Mark 6
- 0.25 US
To complete the head gasket set, you have to choose a gasket with the proper thickness:
- 119771-00401 MK1
- 119771-00411 MK3
- 119771-00421 MK5
PoseidonMarine® Overhaul kit Yanmar 6LP 24-valve 119770-00250 119771-00211 119771-00220
All parts are non-genuine replacement parts, gathered by many European manufacturers.
Yanmar is a registered trademark of Yanmar Co., LTD. We do not have pistons for these engines.
Handling time highly depends on how fast you can determine the bearing sizes and head gasket grade. As soon as everything is clarified, the repair kit will be shipped.
The references that are listed here are trademarks that apply to the respective trademark owners. The references are used only for a reference purpose. Our product is compatible with these reference numbers. Please note that our product is an aftermarket product (non-OEM), unless otherwise stated.
Frequently Asked Questions about Yanmar 6LP:
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How to select the correct Big-End Bearings for my Yanmar 6LP marine diesel engine?
The connecting rod bearings of the Yanmar 6LP can be different on each journal, and the new ones should be purchased after inspecting each old shell, as shown below. In case the bearing size is unknown, refer to the following table.
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What is the tightening torque of the big-end bearing caps?
Each bolt should be tightened in two steps: The first tightening is 375 kgf·cm (37 Nm), then an additional 90° is required.
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What is the tightening torque of the main bearing caps?
Each bolt should be tightened in two steps: The first tightening is 1050 kgf·cm (102.90 Nm), then an additional 90° is required.
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How to choose the correct head gasket for my Yanmar 6LP 24-valve marine diesel engine?
The Yanmar 6LP series has gaskets with notches. 1 notch means Mark I, 3 notches is a Mark III gasket, and finally, 5 notches is a Mark V. Each grade represents a different thickness. The thickness of a newly installed cylinder head gasket is:
MK “1”: 0.85mm to 0.95mm,
MK “3”: 0.95mm to 1.05mm,
MK “5”: 1.05mm to 1.15mm. -
What is the tightening torque and sequence of the cylinder head bolts of the Yanmar 6LP (24-valve) marine diesel?
Before installation, some oil has to be applied to the bolt’s thread and the cylinder head bolt seat. The 26 cylinder head bolts should be tightened several times, in the order shown on the illustration. The tightening torque of the cylinder head bolts is 700 kgf·cm (68.65 Nm).
Please note that A bolts are 121.50mm while B bolts are 133.50mm.
In case a cylinder head bolt does not satisfy the specified torque, replace that bolt. Mark the front side of each cylinder head bolt with paint. Retighten the cylinder head bolts by 90°, following the order shown in the illustration. Retighten the bolts further by 90°. Check that the painted marks face rearwards.
