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  1. jimmbo

    2008 Volvo Penta 5.0GL Carb Problems

    That Power Valve looks like it was was exposed to Salt Water, replace it with one of the same Value. Just don't assume if there is one in the Carb Kit it is correct That carb looks dirty where the Air Bleeds are. The Accelerator Nozzles are in plain sight, under that Big Philips Screw When you...
  2. jimmbo

    Engine Oil viscosity mixing?

    If Volvo specs SAE 30 Synthetic, they have their Reason(s). However, is the 25/40 syn a Volvo or Mercury/Quicksilver Oil? If so, I wouldn't hesitate to use it
  3. jimmbo

    2008 Volvo Penta 5.0GL Carb Problems

    Post a pic of the Covers you are trying to remove. Edit: you were posting as I was typing
  4. jimmbo

    2008 Volvo Penta 5.0GL Carb Problems

    You really need a Book that describes and shows what the Holley Fuel Circuits look like. I have searched Online for the Holley Idle Circuit Diagram, but can only find one, but is was for an International Harvester Tractor and had an adjustable Air Bleed(which permits fully closed Throttle Plates...
  5. jimmbo

    2008 Volvo Penta 5.0GL Carb Problems

    I know Holley used to put a Plastic, easy to remove, Cover over the Idle Mix Screws on the Metering Block. As for One Side Dripping Fuel, as they share a Common Fuel Bowl, is the Carb/Boat/Trailer Level?
  6. jimmbo

    1974 9.9 Johnson running problems. I can get it started but then runs very ruff.

    What did you mean when you said "Extensive Work done", and when was the last Time it was run, prior to the Incident you experienced?
  7. jimmbo

    13x19 Prop Vs 13.2x19

    based on Diameter and Pitch, no difference. However, if there are differences in Blade Area, # of Blades, changes in Rake and/or Cup, there might be a different outcome
  8. jimmbo

    1969 85hp starflite, low power and cutting in and out

    I believe you said you replaced the Rotor and Cap.
  9. jimmbo

    Won't acccelerate

    Some Clarity please: Replaced? As in a New Powerhead? A complete NOS Motor that was sitting in the corner of the Dealer's Warehouse?
  10. jimmbo

    What oil should I use?

    Mercury/Quicksilver offer more than one 10-30 Oil, some are labelled for Outboards, some aren't. The Engine Manufacturers know their Engines and what they require to avoid a Horrible Twitching Death. I know there are some here that will insist that there is No Difference between a Auto/Truck...
  11. jimmbo

    Mid1980's Mercury 2cyl 35hp Spark Plug Question

    There are Much Better Snake Oils than SeaFoam for cleaning the Rings, Merc's Engine Tuner, and BRP's Engine Cleaner, as two. CTC makes a decent one too. Oil should be a Good TCW-3 and mixed at 50:1. Any more is wasting Money, cause if a Bearing is running Smoothly with 50:1, more Oil isn't...
  12. jimmbo

    Won't acccelerate

    If the Dealer can determine you were inside "Tinkering" it could indeed void the Warranty Completely.
  13. jimmbo

    Timing off due to throttle arm and cam follower?

    That cam follower/roller, is supposed to rotate after it comes into contact with the Cam.
  14. jimmbo

    85hp charger speed/prop/rpm concerns

    Just setting the Engine further behind the Transom/Boat, is equal to lowering it. As for the Lower Holes in the Transom, they will be even lower when the Motor is mounted on a Bracket, as the Motor's weight is leveraged. Properly sealed they would not be a Problem in any configuration
  15. jimmbo

    Mercury 115 inline 6 bearing carrier seal issue

    Yes, that is the later design.
  16. jimmbo

    Mercury 115 inline 6 bearing carrier seal issue

    I wasn't asking about the little Roller Bearing. I was asking whether or not the other end of the Carrier had a Friction, or a Non-Friction Bearing. In the Early 80s Mercury changed from a Ball Bearing to a Bushing at that location. I thought it was a Possibility that you have a gearcase from an...
  17. jimmbo

    Lift 1970's 150 Mercury with no power!?

    If I remember correctly, the old Trim System, the one shown in the Pic, only allows the Motor to be tilted up, and once Up, it was there to stay, until a whole bunch of things were done, which involved draining the Hydraulics.
  18. jimmbo

    Mercury 115 inline 6 bearing carrier seal issue

    Marine Engine dot com shows the same Part #s The Seals are different, the Outer one supposedly has some means of fighting/resisting Fishing Lines. You mentioned that the Bearing Carrier, has been superseded. Are you saying you have the Newer Carrier, or the older one? If an older one, I wonder...
  19. jimmbo

    Lower unit gear oil type

    Got to the Dealer, Wally World, Amazon, even Evil bay, and get some Marine Gear Oil, and you won't have to worry about Viscosity. Some on here will Swear and Argue that it is just Auto Gear Oil. I say not. However, it is your motor and money, so you can put whatever you want in it...
  20. jimmbo

    mercury blackmax 150 power/wot problems

    On some of the Yamahas, but on the Merc and OMC 2 strokes, the Carbs are fully Closed, at Idle, and the Timing is used to set Idle speeds
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