The Northshore 33 on Port Phillip
- Built
- 1983 – 1996
- Length
- 33 ft
- Drive
- Shaft drive
- Original engine
- Volvo Penta 2002 (18 hp)
Hank Kaufman’s Northshore 33 has raced everything from club twilights to the Melbourne-to-Hobart — the class has a Rudder Cup winner among its Victorian fleet — and it remains one of the most actively traded Australian 33-footers.
The Victorian boats we see are largely on their original Volvo 2002s: an honest 18 hp in 1988, now a forty-year-old engine pushing a boat its owners still race and cruise hard. Boats in this class have already been repowered with the D1-30 — the conversion is proven.
The Volvo Penta 2002 at forty
The 2001/2002/2003 series were solid small diesels, but production ended decades ago and the survivors are all now deep into corrosion territory: raw-water passages, exhaust elbows and manifolds reaching end of life, with genuine parts increasingly difficult and expensive.
Volvo Penta publishes a dedicated repowering kit (engine bed brackets included) taking the 2002 directly to the current D1 series — which is exactly the conversion documented on Australian Northshore 33s.
Why these engines reach the end
- Raw-water-side corrosion through block passages, elbow and manifold
- Genuine 2000-series parts scarce and priced accordingly
- Hard starting and smoke that servicing can no longer cure
- 18 hp that was marginal into a seaway then — and is less now
The pattern across every brand: sailing auxiliaries corrode out long before they wear out. At 50–100 engine hours a year, the calendar — not the hour meter — decides when a yacht diesel is done. Repower or rebuild? Read our honest guide.
What we fit in the Northshore 33
Volvo Penta D1-30
Our recommendation29 hp · 3-cylinder · shaft drive · factory repower kit from the 2002
- Volvo’s own kit conversion from the 2002 — bed brackets made for this swap
- A genuine power upgrade (18 → 29 hp) the hull carries easily — transformative into wind and tide
- 3-year factory “helm to prop” leisure warranty, no hour cap
Yanmar 3YM20
The alternative21 hp · 3-cylinder · shaft drive · one of the lightest engines in its class
The like-for-like modern replacement if you’re racing to a weight budget — barely 110 kg and beautifully simple. We’ll talk power-vs-weight honestly at inspection.
Yanmar 3YM20 specificationsWhat a Northshore 33 repower costs
Typical for a Northshore 33 shaft repower including the engine. Fixed quote after inspection.
How your repower runs
- 1
Inspection & fixed quote
We survey your engine, beds, shaft or saildrive, exhaust and electrics — at your berth or on the hard — and quote the complete job fixed, usually within days.
- 2
Book the yard
You book the hardstand and we coordinate dates. Royals (Royal Victorian Yacht Club) and Savages Wharf at Williamstown are ideal for us; we also work at Wyndham Harbour and Sandringham YC with some added travel cost.
- 3
Out with the old
Old engine out, bay cleaned and prepared — and we dispose of your old engine as part of the job at no extra cost.
- 4
In with the new
New beds and mounts, engine in, shaft or saildrive fitted and aligned, exhaust, cooling, fuel, electrics, controls and panel — engineered, not improvised.
- 5
Sea trial & handover
Commissioning checks, a proper sea trial on the bay, factory warranty registration and your service schedule. You get a finished boat, not a box of loose ends.
Factory warranty, dealer-registered
Volvo Penta — 3 years
Full “helm to prop” leisure coverage — engine, transmission or saildrive, controls and genuine accessories — with no engine-hour cap.
Yanmar — 2 years, extendable
24-month leisure warranty as standard, with Yanmar’s extended program taking eligible engines to 5 years of coverage — ask us when we quote.
As an authorised dealer for both brands we supply, install, commission and register every engine — one job, one responsible party, warranty watertight.
Northshore 33 repower — your questions answered
Is 29 hp too much engine for a Northshore 33?
No — the D1-30 is within the sensible band for the hull, and the difference shows exactly where the 2002 struggled: punching out of the Rip, motoring into a southerly, or holding schedule on a delivery. If you’d rather stay light for racing, the 21 hp Yanmar 3YM20 is the counter-argument, and we’ll make both cases honestly.
Does the factory kit mean less installation work?
It means less fabrication — Volvo’s brackets are made for the 2002-to-D1 swap — but every repower still gets full engineering: mounts, alignment, exhaust, cooling, controls and a sea trial. The kit makes a clean job cleaner.
Where does the work happen?
At Williamstown, minutes from our Spotswood workshop — Royals (Royal Victorian Yacht Club) and Savages Wharf are our preferred yards. We can also repower at Wyndham Harbour or Sandringham Yacht Club, with some additional travel cost. You book the hardstand (we’ll point you to the right people) and we handle everything from there. Geelong owners: we’ll ask you to bring the boat up to Williamstown.
How long does a repower take?
A standard repower is about two weeks on the hardstand. Engine lead times are currently reasonable — but plan ahead a few weeks so the engine is on the floor before your boat comes out of the water.
What warranty comes with the new engine?
Volvo Penta engines carry a 3-year factory “helm to prop” leisure warranty with no engine-hour cap. Yanmar engines carry a 24-month leisure warranty, and Yanmar’s extended program can take eligible engines to 5 years of coverage — ask us when we quote. As an authorised dealer for both brands, we commission and register every engine so your warranty is watertight.
Can you fit an engine I buy elsewhere?
No — we install engines we supply. That’s not a sales line: it’s how we can stand behind the entire job, from engine to beds to sea trial, under one warranty and one responsible party.
What happens to my old engine?
We remove and dispose of it as part of the job, at no extra cost.
What about an electric conversion?
We’re developing an electric repower offering in-house and will be bringing it to market. If you’re weighing diesel against electric, talk to us before committing either way — we’ll give you the honest state of play for your boat and how you use it.
Request a Northshore 33 repower quote
Tell us your boat, where it's berthed, what engine it has now (roughly is fine) and how you use it — we'll come back with honest advice and a fixed quote, usually within a few days.
Boat model names are used to describe the vessels we service; Mariner Engineering is not affiliated with the boats' designers or builders. Mariner Engineering is an authorised Volvo Penta and Yanmar dealer.