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  1. M

    1999 5.7GSI PWTR. Running really rich in driveway

    1999 5.7GSI PWTR Ran fine 2 years ago. (has not run in 2 years) Went to wake the motor up. New plugs New fuel filter Had been flogged so I expected it to be a little rough getting it started up. Engine is running very rich. Black smoke, barely idling. - added fresh fuel to the tank - dumped...
  2. M

    Poll: Do think think a SE106/SE116 will handle more than 300 HP better than an Alpha?

    SEI talks about better quality components and gears than OEM on their website, and they warranty the crap out of their product. If I was pushing 430 HP @ 5200 rpms through my drive, do you think the SEI drive would hold up better than an OEM alpha? YES I KNOW THAT MERCRUISER ONLY RATES THEIR...
  3. M

    May be a long shot, but any chance mercruiser risers bolt to PCM manifolds?

    I don't know if any of you have experience with mixing and matching manifolds/risers, But will a mercruiser riser work with a PCM manifold? PCM engines are typically for inboards, not inboard/outboards. Their manifolds look very much like mercruisers, and their risers bolt on in a very...
  4. M

    Wow... The gen 4 small blocks are REALLY getting cheap!

    Ebay Auction GM Marine's 6.0L -Direct Swap for our Generation 1 Small blocks and 4.3's -Aluminum -Variable Valve Timing -Already in marine production (Idmar and GM marine) -Truck and Marine already use the same ignition and intake components -Engines are WAY WAY tougher (high RPM) than our...
  5. M

    Are trim tabs for me?

    1986 Regal Medallian 195 19.5' open bow Mercruiser alpha-1 4.3 Vortec I have no problems getting on plane, or controlling my speed. My main concern is stability in rougher water. It seems certain waves, my boat can handle no problem, and other waves cause the boat's bow to start bouncing. A...
  6. M

    Are certain drums not compatible with electric brakes?

    Just finished installing a shark skin electric brake kit. Single axel, 3500# The kit came with the back plates, all the wires, the break-away kit and the battery. I verified that the magnets were getting power, I had someone engage the brake controller in the truck, and the magnets attracted...
  7. M

    Do exhaust riser extensions allow you to run hotter cams without water ingestion?

    I was trying to answer a question for fabrimicator the other day, and it got me thinking. We all know running too hot of a cam can cause water to enter the combustion chamber through the exhaust. And we all know manifold riser extensions help keep water out of the manifolds in situations where...
  8. M

    Alpha-1 lower unit damaged, but how? pics.

    Finished a day of boating, went to rinse the leg out, and noticed some damage to my lower drive. I have absolutely no idea how it happened. I Don't recall anything coming close to the drive, and I certainly don't remember hitting anything. I was beached for awhile, but my leg was lifted, and...
  9. M

    Good online supplier for Saltwater friendly electric brake kits

    All my local suppliers are useless. I'm looking for a salt water friendly electric brake kit for my trailer. #3500 axle, need the backing plates, shoes, and all the hardware.
  10. M

    Electric brakes "no good" for a boat trailer, fact or fiction?

    I've been calling around local trailer shops to find an electric brake setup for my trailer. I just had a long conversion with a technician who told me that electric brakes have no business being on boat trailers because of corrosion. He said that even in fresh water, they would only last a...
  11. M

    Wandering Throttle / Power surge issue

    4.3 EFI Alpha-1 MR 2 year old controls (throttle/gear) When cruising (1/4 - 3/4 throttle, 2000 - 4200 rpms or so), the engine seams to randomly loose, then gain power. I haven't had a chance to take anything apart yet, as my tools are in storage (moving). but this is what I know so far...
  12. M

    Anyone try using Aftermarket Aluminum heads?

    I know you 383 guys like to up your compression, run a hotter cam, and rev your motors up to 5500 rpms (or higher), but I'm wondering if anyone has tried to get more power by increasing flow, rather than compression and rpms. A vortec 5.7 is rated for 292 HP in a marine application...
  13. M

    Looking for sugestions for a truck bed liner style marine product for my floor.

    I've got a late 80's Regal Medallion 195. I've stripped the interior, and started rebuilding everything from scratch (side pieces, engine cover, console, glove box, etc) I removed the factory carpet, and now I just have the plywood/fiberglass deck. I want to re-do the floor now, but I can't...
  14. M

    Need help Disassembling controls, diagram in post

    Controls (throttle / gears / trim) part number: 827270a43 I'm doing some interior work in my boat, and I need to remove the controls from a piece of plywood so I can install it on the new plywood. I tried putting the throttle at 1/2 in fwd and removing a small allen key, but that didn't seam...
  15. M

    Replaced shift cable last year, Reverse hasn't worked since. I may know why.

    Alpha 1 - MR Last year I Changed a bunch of stuff, including my shift cable and bellows. Since then my reverse has never engaged properly. It either grinds, or hits shift intterupt (and stalls the motor). Now, I don't remember all the details of installing the new cable, but I remember I was...
  16. M

    Can't seem to get reverse to work right.

    Alpha-1 MR Last year, I removed my engine and drive to replace a coupler. While I was at it, I removed everything off my transom, did some fiberglass work, cleaned and painted the inner and outer transom plates, the gimbal assembly and the upper and lower drive units. I also replaced all the...
  17. M

    Engine "seized" while on the water... Hydrolock?

    Engine: 4.3 EFI Drive: Alpha-1 Raw water cooling Exhaust manifold age: 5-7 years (estimate) Just took my boat out for the first time since de-winterizing. Over the winter: Block plugs removed Manifold plugs removed lower water pump hose removed Thermostat removed and antifreeze pored in...
  18. M

    Need sugestions on how to finish marineizing my 4.3

    I've been running my automotive 4.3 in my boat for a few years now. I'm running a marine starter and a marine alternator, but I'm using the automotive power steering pump, and the automotive water pump. I want to install a proper heat exchanger so I can actually go into salt water, but the...
  19. M

    Looking for good deals on boats. North West corner of US.

    I live in the south west corner of British columbia Canada. I'm looking for a boat, and I'm wondering which markets in the US within driving distance is going to have the best deals. I'm basically wondering where in 1000 miles of washington is a lake community that may be hard hit by the...
  20. M

    Anyone Ever try a Mazda Rotory W/ a mercruiser outdrive?

    http://www.atkinsrotarymarine.com/ These guys make kits to install mazda rotory engines in boats using mercruiser legs. Anyone have any experience with those kinds of setups? My understanding of a rotory in a boat is: Pro: weight fuel consumption at higher speeds reliability Cons: Engine...
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