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  1. M

    D3-160 Twin Engine - spacing.

    Hi, hoping someone can help. I am repowering from 2 failed petrol sterndrive engines and being offered nearly new D3-160 engines complete with SX sterndrives. Engines are from 2007 but have less than 100 hours, so a reasonable proposition. Now.. the old engines had a small footprint and the...
  2. M

    Twin Engine to Single engine re-powering question.

    Hi, looking for advice for anybody that has replaced 2 aging sterndrive engines to a single sterndrive engine. Had a catastrophic failure on an old Volvo engine where parts are unavailable. I decided the only option was to re-power and have since removed the engines and drives. Here in the UK...
  3. M

    Volvo Penta to Mercruiser Steering?

    Hi, Probably a dumb question, but normal questions and searches do not show me much. I am re-powering from a couple of aging Volvo’s to a single new Mercruiser 6.2L V8 with Bravo 3 Drive. What steering system is recommended or does it come with this? I currently have the Volvo Roto Pilot...
  4. M

    Repowering with twin Mercruiser 4.5L's

    HI, Has anybody had installed new Mercruiser 4.5L Sterndrives? I am seriously thinking of re-powering from 2 aging straight 4 Volvo’s, but I am confused regarding the specified dimensions. The old Volvos are fairly compact but they are a tight fit height-wise. I have around 800mm height in the...
  5. M

    "Piston Broke"

    O/K an old joke but I am not really laughing. Seemed a nice day for a gentle potter down the river on Friday, so started the engines to warm up, when suddenly a “bang” - engine stopped. That doesn’t sound good I thought! Engine completely “jammed” up. So .. decided to start to strip down and...
  6. M

    Spun Prop Hubs!

    Dumb Question Alert!!! Why do I get spun Props after very little use? Here is the scenario .. twin AQ171c’s on standard OEM Volvo 14 x 19’s. Boat is a 27 foot - 30 knot sports cruiser. Weighs around 4 tons. All going well no bumps or damage, reasonably calm and flat, travelling around 4000revs -...
  7. M

    Volvo Penta 290 SP-A – Kicks up in reverse – reverse lock.

    Hi, I have a problem that the drive occasionally lifts up in reverse; normally when docking which can be “awkward” at times. Now… I have already replaced the complete latch mechanism including springs, pawls etc. for new, so a little stuck. Checked everything is aligned and works as it should...
  8. M

    Any E10 (Ethanol) problems you are aware of on older engines?

    Hi, Here in the UK we are now having to use E10 Gasoline (10% Ethanol) as opposed to E5. Is anybody aware of potential problems in using this fuel.? I have a couple of 1989 Volvo Penta AQ171C's and I have always used Startron gasoline treatment. I have an aircraft grade Aluminum fuel tank...
  9. M

    Engine not starting – rapid vibration noise from the starter.

    Hi just wondered if I have a really serious problem that has developed over the winter and wondered if anyone can give some pointers. At layup time .. everything all fine. Just a standard 4 cylinder AQ171C volvo gasoline engine layed up according to the manual including fogging etc. Come to...
  10. M

    Volvo Penta sterndrive 290 SP-A – Vacuum test.

    hi ... not sure if I should bother?? Have my sterndrive off and at home for overhaul and painting etc. I have drained the oil and it’s as clean as it went in. I have pressure and vacuum tested. Will hold 17Psi pressure for hours no problem. However the vacuum test worries me. I can evacuate the...
  11. M

    SternDrive SP290 SP-A – Reverse Latch Mechanism.

    Hi Quick question if I may. I believe I am getting wear in the Reverse Latch Mechanism as it can occasionally kick up in reverse, (normally when hard reverse thrust is urgently required)! As the Bellows etc replacement is due at the end of the season I usually remove the whole drive and take...
  12. M

    Solex 44 PA1 Carburettor fuel fittings.

    HI, Does anyone know the size of the Hollow Screw (Banjo Bolt) that feeds the fuel into the Solex 44PA1 carburettors? The Volvo Penta part number is 824711. The thread diameter looks like its 10mm. Whilst laying up the engine for the winter I noticed a slight weep of petrol from the bolt. I have...
  13. M

    Sterndrive seems to kick-up both in forward and reverse!

    Hi, I have a problem on one of my Volvo Penta 290 SP-A Sterndrives and wondered if anyone can suggest remedies. Twin engine setup and under no wake speed everything is fine. If I increase to planing speed one of the drives seems to lose grip and the revs increase dramatically. The problem also...
  14. M

    SP-A Outdrive lifts underway.

    Hi , I am wondering if some of you knowledgeable folk can offer suggestions? I have what appears to be defying physics law!! My Stendrive SP-A lifts whist underway. This normally occurs whilst trying to get over the "hump" applying full throttle. Slow speeds its fine. The trim indicator shows...
  15. M

    Losing drive at high revs.

    Hi I am looking at pointers at this early stage and would appreciate any suggestions. I have a pair of AQ171’c on 290 SP-A drives. All season things have been fine so this is a sudden development on one drive. At no wake zone things are fine and I can travel all day at 2000 revs, but the moment...
  16. M

    Sealant on Exhaust hose?

    Hi, I am just wondering..... I have a small water leak in the bilges and it looks like it is coming from the rubber exhaust hose connecting the engine exhaust manifold to the SP-A outdrive exhaust pipe. I have replaced the hose including the clips as well as smoothing out lumps and bumps on the...
  17. M

    AQ171c Exhaust Manifold!

    Hi, Has anyone had any success in repairing a cast iron exhaust manifold? My AQ171c Exhaust Manifold has a hole in the exhaust side which goes through to one of the fixing bolt holes. The hole is in the fourth port (nearest the exhaust elbow). Now these manifolds are obsolete, rare and only very...
  18. M

    Volvo Sterndrive 290 SP-A ... Ram Advice.

    I noticed at the end of the season the sterndrive would not hold trim and sure enough on checking the trim oil I have water in the oil. I have the drive completely off for usual maintenance so have access to the trim cylinders. On testing the trim without the drive the starboard cylinder moves...
  19. M

    AQ171c PDS Bearing!

    Hi all, This winter I am taking the drives off for their biennial service and overhaul where I will be replacing the bellows etc. I have seen in recent posts that whilst the drives are off, it is good time to replace the PDS bearings. I have no known problems “at this time” but mindful of the...
  20. M

    What Engine Oil?

    Hi, what is the current thinking on engine oil for a couple of ageing 1989 AQ171c’s? The operator’s manual states Multi-grade 10 / 30 or 10 / 40. The workshop manual states Multi-grade 20 / 50. Volvo Penta only makes 15 / 50 for gasoline engines these days. I have tried part synthetic 15 / 40...
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