What is the tightening torque for vital joints on a Volvo Penta AD31D, AD31XD, TAMD31D, and TMD31D?

The tightening torque for vital joints, where it is not specified otherwise, is: 6Nm for M5 bolts, 10Nm for M6 bolts, 25Nm for M8 bolts, 50Nm for M10 bolts, 80Nm for M12 bolts, and 140Nm for M14 bolts.

What is the piston ring profile and its part number on Volvo Penta AD31D, AD31XD, TAMD31D, and TMD31D? How to install them properly?

Each piston has two compression rings and one oil ring. The upper compression ring (A) has a keystone shape and is molybdenum-coated. The second compression ring (B) is chrome-coated. Lastly, the oil scrapper ring (C) should be installed with the opening of the expander on the opposite side of the gap in the oil ring. These piston rings’ reference is 275350.

Is it possible to supply oversize bearings for the “Engine overhaul kit for Volvo Penta TAMD31D AD31XD 876970 22389354”?

Yes, Poseidon Marine keeps in stock a few series of repair bearings 0.25mm. 876512 is the big-end bearing reference, 876516 is the main bearing reference, and 876520 is the thrust bearing reference. Upon request, we can provide oversize bearings with this overhaul kit.

Sada pro repas hlavy válců Marine Volvo Penta D31 nahrazuje 877710

€789,90
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High-quality marine engine spare parts.

SLP® & Recmar® premium-quality cylinder head overhaul kit for Volvo Penta marine diesel:

AD31B, AD31D, AD31L-A, AD31P-A, AD31XD
TAMD31B, TAMD31D
TAMD31L-A, TAMD31M-A, TAMD31P-A,
TMD31B, TMD31D, TMD31L-A

For engines with S/N 2203116854- and up.

The following parts are included in this kit:

EXHAUST VALVE 838638 (4)
INLET VALVE 838637 (4)
INJECTOR SLEEVE 861255 (4)
VALVE GUIDE 3582561 (8)
VALVE COTTER 1677875 (16)
TAPPET 1542208 (8)
VALVE SEAT EXHAUST 858331 (4)
VALVE SEAT INLET 860035 (4)

Cylinder Head Rebuild Kit Volvo Penta AD31D TAMD31D TAMD31L-A TAMD31P-A 877710

This product replaces the following manufacturer's part nr:

Volvo Penta: 877710
SLP: HRK-710
Poseidon Marine order number: PM877710

Assembly time: 4 days.

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.

ESTIMATED DELIVERY TIME

For further technical details, you may download this workshop manual:

Frequently Asked Questions About:

What is the tightening torque for vital joints on a Volvo Penta AD31D, AD31XD, TAMD31D, and TMD31D?

The tightening torque for vital joints, where it is not specified otherwise, is: 6Nm for M5 bolts, 10Nm for M6 bolts, 25Nm for M8 bolts, 50Nm for M10 bolts, 80Nm for M12 bolts, and 140Nm for M14 bolts.
What is the piston ring profile and its part number on Volvo Penta AD31D, AD31XD, TAMD31D, and TMD31D? How to install them properly?

Each piston has two compression rings and one oil ring. The upper compression ring (A) has a keystone shape and is molybdenum-coated. The second compression ring (B) is chrome-coated. Lastly, the oil scrapper ring (C) should be installed with the opening of the expander on the opposite side of the gap in the oil ring. These piston rings’ reference is 275350.
Is it possible to supply oversize bearings for the “Engine overhaul kit for Volvo Penta TAMD31D AD31XD 876970 22389354”?

Yes, Poseidon Marine keeps in stock a few series of repair bearings 0.25mm. 876512 is the big-end bearing reference, 876516 is the main bearing reference, and 876520 is the thrust bearing reference. Upon request, we can provide oversize bearings with this overhaul kit.