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  1. M

    Shimming Lower Unit to Intermediate - DP

    I know this topic has been discussed often, but during assembly I began to second guess myself. I always thought you wanted to have a clearance, or 'negative' preload between the lower unit tapered roller bearing and the race pressed into the intermediate housing. After taking numerous...
  2. M

    Volvo White Sealing Compound Vs. Perfect Seal

    In the past, assembling 280 drives I used Evinrude/Johnson Sealing compound, or Mercruiser Perfect Seal between the upper/intermediate and intermediate/lower aluminum surfaces OUTSIDE of the O-rings. This seemed to work well. Assembling a DP drive the manual calls for Volvo White Sealing...
  3. M

    290 DP Upper Gear oil seal replacement

    I need to replace the oil seal on a 290 DP upper gear unit. The unit utilizes a crush sleeve on the drive gear. Questions: 1. I have read some people replace the oil seal without installing a new crush sleeve. They simply tighten the torx bolt +5 ft-lbs. Though not the 'proper way', this...
  4. M

    290DP prop selection - need advice

    I'm looking at a boat that the factory states should run 27 kts at 3,000 rpm / 34 kts 4,000 rpm with A6 wheels. I sea trialed the boat, which has J7 wheels, and she performed 20 kts at 3,200 rpm / 30 kts 3,900 rpm. Clean bottom, drive and wheels. Similar load. Any thoughts about the J7...
  5. M

    J7 versus A6 duoprop

    Potential new (used) boat owner here. 285 Albemarle Express with twin TAMD41P, jackshaft to 290DP drive and J7 wheels. Factory performance of the exact setup BUT with A6 wheels is: 3,000 rpm. 27 kts 3,500 rpm. 30 kts 4,000 rpm. 34 kts The boat Im looking at performed: 3,000 rpm. 18 kts...
  6. M

    Defeated by a 4 hp!

    So my buddy picked up a 4R73C 4 hp at a yard sale for $20. She looked in decent shape, why not right? After checking it out it was apparent someone had done some head work, as a new gasket and sloppy gasket maker was visible. We tried starting her only to find she'd sputter briefly and die...
  7. M

    Grease for Raw Water Pump Bearings - Bravo

    I changed the seals on a raw water pump and need to repack the bearings and housing with grease. The OEM manual calls for Shell Alvania Grease EP(LF), or equivalent. Anyone have any off-the-shelf brands I can fire in here tonight? Thanks in advance!
  8. M

    4 hp float setting please

    I have three 4 hp outboards. 1978 4836E 1976 4636M 1973 4R73C What is the float setting on these carbs? I believe they are all the same. Thanks!
  9. M

    Delco-Remy starter rebuild kits??

    Does anyone know of a supplier for Delco-Remy starter rebuild kits, to include springs, brushes, retainer, snap ring and bushings? Twenty years ago I remeber getting a kit from a local machine shop for short money. They are no longer in business and I can not locate a complete kit online...
  10. M

    4kw Westerbeke Genset No Output Voltage

    I am helping a friend troubleshoot a 4 kw generator, circa 1999 that had the alternator replaced in 2005. The engine runs fine, 1800 rpm, no problem, but there is no output voltage to the frontside of the breakers. I have asked for the exact model number to aid in my research. Does anyone...
  11. M

    2009 200 hp wont rev beyond 4600

    2009 200 hp will not rev beyond 4600 rpm. Fuel filters have been changed and anti-syphon valve checked. Engine ran without issue on Monday, last night problem began after launching. No alarms nor indications of problems at lower rpms. This evening I will bypass the main fuel tank with a...
  12. M

    1997 250 hp SSII Bangs in gear w/ new prop.... ??

    I am helping a friend troubleshoot a problem. 1997 250 hp Saltwater Series II OX66 engine. He ran a 14-1/4 x 19 prop without any issues. Recently he bought an Apollo 15-1/4 x 19 prop (new) and upon the first test run noticed a significant "clunk" when placed in gear. At cruising speed (4000 rpm)...
  13. M

    4 hp Evinrude Identification Needed

    I need to order a water pump kit and carb kit for a 4 hp Evinrude. The model number is: 4836E and the serial number is: E0002364. Could someone please tell me the year of this motor? I am thinking 87-88 but not sure. Thanks
  14. M

    PDS Seal Installed 'backwards'?

    The VP manual states to install the AFT PDS seal with the 'open' side facing out. Is this done to allow old grease out and new grease in? Also, I noticed there is roughly 3/4" between the backside of the AFT seal and the second snap ring. I would think the AFT snap ring should be snug...
  15. M

    280PT Trim Pump Oil

    I have always filled the trim pump for my 280PT with Type F transmission fluid. This weekend I saw the same pump on my buddy's boat (Merc Alpha I drive) and it had the following sticker on it: "10W-30 or 10W-40 MOTOR OIL ONLY". Like many 280PT owners my drive sags from the tilt position over...
  16. M

    Search Function?

    OK, I am going to admit I just spent five minutes searching for the "search" function on this forum... where did it go? We used to be able to search under topics etc. Is it right under my eyes?
  17. M

    Is it an Alpha One?

    I'm a Volvo guy, but helping a friend do PM on his Mercruiser. He has a 1980 Alpha drive. Is this an Alpha One, or pre-Alpha One? When ordering the new raw water pump it asks. Does anyone have the part # by chance, as well? Thanks!
  18. M

    5.7L EFI Intermittent No Spark

    Though I have never worked on a Volvo EFI engine, I am making the assumption the Volvo setups utilize GM fuel injection components, thus making the Mercruiser and Volvo setups similar in nature. Therefore I would like to post a Merc question in this forum to pick all of your expert brains...
  19. M

    1998 5.7L EFI Intermittent No Spark

    1998 Mercruiser 5.7L with TBI, Cool Fuel system and Bravo drive Engine will start and run fine one day, then not start the next. If the engine does start, you can run it, shut it off and start it back up multiple times. When it will not start there is no spark at the plugs nor at the...
  20. M

    Type of oil for 280T trim pump?

    I have always filled the trim pump for my 280T with Type F tranny fluid. The pistions have always dropped over night and under load as well. I figured this was due to worn o-rings on the piston. BUT this weekend I noticed the exact same pump on my buddy's Merc setup and the sticker reads: "SAE...
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