Fig.2 - Volvo Penta MD2B Engine (example, not the one installed on TOM).
After some research, we realized that it’s becoming increasingly difficult each year to find
maintenance parts for our MD2B. Then, by chance, we met someone who knew someone with experience
in BUKH engines. So we decided to go and take a look.
And guess what? When Jacco was a kid and used to go fishing with the EH4, he often passed by
a mechanic’s shop called Krikke in the Brugstraat. One of the brothers who now works
with BUKH engines used to work there — and Jacco already knew him!
They are the de Graaf brothers, and they’ve been doing this for years. Lucky us!
We visited them and agreed on a DV24. Now, all we need is a little patience...
Our DV24 is being refurbished first by them.
The image of the Volvo engine here, is not our engine. We cannot see the engine from
the front. But this gives you an idea of what engine currently is installed.
Engine Comparison
What compares to what?
For just having peace of mind, a little comparing is always good, right? So we compare how the two engines are globally different from each other. There are differences, because the Volvo is full cousin of a steam-engine providing 1 HP for 10 KG of engine. The Bukh engine is a little
less weight, but still serious.
Comparison: Volvo Penta MD2B (1.91:1) vs Bukh DV24 (3:1)
Dynastart with separate regulator and start solenoid 11A
Starter with separate Alternator 55A
Propeller Comparison
Which turns What Way?
Propeller information Volvo Penta MD2B (1.91:1) vs Bukh DV24 (3:1)
Property
Volvo Penta MD2B
Bukh DV24
Rotation of PropellerLooking from flywheel to propeller shaft and propeller
Clockwise
Counter Clockwise
Standard Popeller type (L/R)
17 × 11" Left turning
18 × 13" Right turning
Advised Propeller
17 x 13" Left turning *
17 x 13" Right turing *
Advised Propeller Alternative
16 x 15" Left turning *
16 x 16" Right turing *
* 0.33 mean-width ratio blades. (This means that 33% of the blade area is the propeller blade width relative to the propeller diameter.) If you do not have enough space in the propeller aperture, you will find an alternative below. This is based on the "rules of thumb":
2 inches of diameter = 2.5 inches of pitch. An additional 2 inches of pitch will reduce the engine speed by 450 RPM.
Realistic Fuel Usage
Which engine burns what?
Fuel Consumption at Cruising Speed
Engine
Cruising RPM
Fuel Consumption (liters/hour)
Remarks
Volvo Penta MD2B
1900
1.5 – 2.0
Based on user reports
BUKH DV24
2400
2.4
Field test at cruising RPM
BUKH DV24 (max)
3600
5.8
Under full load (manufacturer spec)
Differences
What fits better?
Sure.... The implications of repowering a boat... Let's see what the differences are!
Situation
Which engine scores better?
Fuel efficiency / range
Bukh DV24
Quietness / comfort while cruising
Bukh DV24
Ease of installation (drop-in)
Volvo MD2B (already installed)
Spare parts & future-proofing
Bukh DV24
Maneuvering power
Bukh DV24
Reverse propeller rotation?
Yes (left → right)
Main Navigation
24 Januari 2026
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The upgrade plans
24 Januari 2026
Our upgrade plans.
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