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  1. Horigan

    290 DP Prop Cone/Nut Torque

    I had an issue earlier this year where I lost a rear prop on one of my 290 DP drives due to apparent insufficient torque on the prop cone and center bolt. I had used a Volvo prop removal/install tool and thought I had pretty good torque on the cone and center bolt. I acquired another rear prop...
  2. Horigan

    Volvo Equivalent to '95 OMC Ford 5.0 EFI Multi-port Engine?

    I'm curious what the Volvo equivalent designation is for my joint venture '95 OMC Ford 5.0 EFI multiport engine is (50FAPHUE). I assume it will be something like Volvo 5.0 GXi, or something like that. Does anybody know?
  3. Horigan

    Help Identifying Cooling Hose Part Number

    I want to replace the U-shaped cooling hose in the image below (#17) that's between the fuel reservoir and the power steering cooler on my OMC 5.0 EFI motor (see signature for part number). Unfortunately, the parts number given for #17 is for a different hose (oil cooler to gimbal). The ID of...
  4. Horigan

    Rapid Outdrive Anode Loss

    I'm finding that the anodes on our Volvo 290DP drives are being consumed in about four months, while slipped in saltwater. Is typical for these drives? The previous owner of the boat had painted hull anti-fouling paint right up to the drive transom mounts, which we stopped adding to for the...
  5. Horigan

    Source for Ford 5.0 EFI Stbd Exhaust Riser?

    I need to replace my starboard exhaust riser and am having a hell of a time finding a new part online. Anybody have a source for a new 3855269 exhaust riser, or a great condition used one?
  6. Horigan

    Getting Water Out of Cylinders

    I had a water intrusion event on one side of my V8 due to a failed exhaust riser. I've pulled the exhaust manifold, riser, elbow, and exhaust hoses. I've pulled all the plugs and cranked the engine several times to get most of the water out. I used a shop vac with small hose to get more of...
  7. Horigan

    SX-M Second Lower Anode?

    I'd like to improve the corrosion protection on my joint venture '95 Volvo SX-M / OMC Cobra SX drive. It has multiple layers of paint and anti-fouling paint and each year I am priming and repainting areas that flake off due to corrosion. The main lower anode (Item 53 below) has a good...
  8. Horigan

    Video of 290 DP Outdrive Shaft Seal Replacement?

    Can anybody share a video link or shop manual link on how to replace the prop shaft seals on a dual prop 290 A2 outdrive? I've checked Google and YouTube and haven't found one. The manualslib.com site doesn't appear to have manuals for these older drives. I did find the write -up below and it...
  9. Horigan

    SX-M Prop Housing Anode

    I see in the parts diagram for my joint venture SX-M drive that there is a prop shaft housing anode and retainer, which my drive doesn't have. I can find the anode, but not the retainer on line. I've never seen this anode (3852970) in any SX-M anode kits. Is this anode no longer being used...
  10. Horigan

    Trimming with Outdrives and Trim Tabs

    I recently acquired a 50% share in a 30' Commander Sport Cruiser with twin Volvo diesels and outdrives. The boat also has trim tabs that I don't have much experience with since my current 21' Chris Craft only has an outdrive, which I trim up and down to trim the boat. I know how to trim with...
  11. Horigan

    Good Source for Trailer Axles?

    I'm getting water in my bearings due to poor axle surface conditions under the rear seal (see pic). I need a galvanized 2"x3" square 5200 lb axle with a 4" drop. This is for a Calkins trailer. I found that Pacific Trailers can custom build one for $280. Before I pull the trigger with them...
  12. Horigan

    Erroneous Temp Sensor Reading

    I'm having an issue with my OMC/Volvo engine water temperature sensor reading about 35 deg F too high. I've confirmed nominal temperature at the sensor with an IR gun (150 - 160F once warmed up). I've also confirmed the IR gun is reading accurately via a different temp probe. I've replaced...
  13. Horigan

    AGM Battery Over-discharge Damage?

    I have a Marine dual use 12V AGM battery that I over-discharged to 8.5V. It's charging back up now. I understand over-discharging a battery can damage it, or reduce it's capacity. After charging it I'll take it to an auto parts store for a load test. If it passes that load test are there any...
  14. Horigan

    Transom Seal for Shift Cable Housing

    I'm starting to chase down a minor fresh water leak in my bilge. One area I want to investigate is the seal where the shift cable housing exits to the outdrive. I remember the cable housing feeling a little loose through the transom when I did my annual service last fall. I've scoured the BRP...
  15. Horigan

    Lower Temp Thermostat with Closed Cooling System?

    Should a closed cooling system have a lower temperature thermostat than a raw water system? I ask because my motor is spec'd to a 160degF thermostat with a raw water cooling system. My boat has a closed system with raw water going through the oil cooler, heat exchanger, exhaust manifolds, and...
  16. Horigan

    Reverse Uphill with Disc Surge Brakes

    I just had my drum brakes replaced with disc brakes and just picked the trailer up from the shop today. The forward braking is much better and smoother. Unfortunately, the reverse lockout solenoid doesn't appear to be working and I'll have to take it back. This is with a Titan disc surge...
  17. Horigan

    Water Inlet Removal from Pivot Housing

    This year I tried to replace the water inlet from the pivot housing on my '95 OMC/Volvo Cobra SX drive as preventative maintenance, but there was a ton of white powdery corrosion holding it in place. I tried to remove as much as I could and tried to drive the inlet out with a block of wood and a...
  18. Horigan

    SX-M Pivot Housing Removal Question

    I've read here that when replacing the drive bellows, it's easier if you remove the pivot housing. I also know that you don't need to replace the exhaust bellows. Is it possible to leave the exhaust bellows attached when removing and lowering the pivot housing to gain better access to the...
  19. Horigan

    Help w/ Outdrive Corrosion and Improving Anode Performance

    My '95 OMC Cobra SX (Volvo SX-M) outdrive has many layers of black Trilux 33 anti-fouling paint that is chipping and flaking off due to corrosion. I had installed a new Volvo aluminum anode kit during winterization and it's working fine on the transom mount, but I'm having difficulty getting a...
  20. Horigan

    1995 Joint Venture Drive Compatible with Volvo Dual Prop Lower End?

    Curiosity question... I have a 1995 OMC SX joint venture outdrive (50FAPHUE) and was wondering if it's possible to install a Volvo dual prop DP lower end. Are the Volvo drives metric threads? I know I need 7/16" nuts to RnR the OMC outdrive, so I assume the entire OMC unit has SAE threads and...
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