engine

  1. muskokamarc

    Where is the "Engine" Serial Number

    Hey there - Attached is a picture of my 1987 SeaRay engine. I have a few questions that I was hoping you could all help answer: 1) I'm looking at getting a new alternator, voltage regulator, and starter. Any idea how much these parts should cost each? I'm located in Canada. 2) I am looking to...
  2. R-and-R

    Exhaust hose burn thru

    Burned thru the exhaust hose on the starboard riser, starboard engine today. Pics below. It appears to be an actual burn through, not just age-related failure. Engine temperature was normal. Any thoughts on how/what would cause it? 2002 340 Dancer. 8.1s engines. ~ 700 hours
  3. E

    1, 2, 3, 4, 5, 6, 7...Mercrusier Engines or Lemons?

    This is my story about having to replace not one or two engines, but now seven Mercruiser engines on my Sea Ray, and what I’ve learned along the way which will hopefully be helpful to you. First, you might initially think, judging by the sound of it, I’m into racing “go fast” boats that go...
  4. D

    1997 Sea Ray engine cover crack solutions. Please help!!

    Hello all, I am looking for solutions to an entire cover crack on my 1997 Sea Ray 190. I have read some posts from 8 years ago but nothing recent. Anyone know where to buy a new engine cover? Or had luck with fixing it? Any suggestions would be appreciated!! Shawn
  5. G

    Opinion on Compression

    I have a 1985 Sea Ray 260 it has a 5.7 liter engine. I have just run a compression test and have the following results: DRY WET 1) 142 209 2) 126 205 3) 180 224 4) 185 215 5) 125 170 6) 105 160 7) 185 208 8) 120...
  6. J

    1988 SeaRay 230 engine replacement

    Hey everyone, this is my first time posting but bare with me. I'll try and give a quick rundown of what happened. I was given this boat by a family friend as a gift and am extremely ecstatic about it. This is my first boat. I do realize that it takes a lot of work to maintain and own a boat but...
  7. I

    acquired a 1993 sea ray 220 5.0LX v8 overnighter, sat for 13 years HELP

    just acquired this boat for free and it needs a ton of love. the motor hasnt been started in almost 13 years and im afraid to try it. i know the thermostat needs to be replaced since i can see its cracked and the impeller fan. anyone have any suggestions on where to start to get this sucker...
  8. C

    audible engine alarm using new key

    Hello, I purchased the boat around two months ago with two main engine keys. I would always use the same key, turn it to the "on" position, an obnoxiously loud constant high pitch sound would turn on, I'd start the engine and the sound would go away. Then I lost the main key. So, two days...
  9. D

    Engine Failure - Threw a Rod - Did Water Get Into Cylinder Causing This?

    I have a 1997 Sea Ray bowrider. It is an SR210 with a 250HP, 5.7L engine, non-EFI. I threw a rod recently. The mechanic thinks water went up the exhaust hose(s) to cause this. He said we had too many people on the boat. We had 10 people, with a total of about 1400 lbs. It is rated for 10...
  10. N

    5.0 engine swap

    I'm new. About to purchase a 215 Express 1999 with the 5.0. It is a project boat and the block is cracked. My question is, I happen to have a 1984 Trans Am in my garage with the 305 5.0, perfectly good. I intended to remove that engine for an LS1 down the road anyway so I don't need it. Can I...
  11. W

    Engine needed for 1983 SRV 207

    I acquired a project 1983 Searay 207. The original equipment Mercruiser 228 engine was a 305 V8. The sterndrive is a MC1 at 1.50:1. The engine is total trash. Only salvageable engine accessories are the alternator and starter. The boat is in lousy condition but I am having fun trying to put...
  12. cdream

    Engine freeze plug replacement

    My starboard engine freeze plug popped out. Has anyone put a freeze plug in without pulling the engine out? Any tips? '86 Sea Ray Sundancer 300DA w. two 5.7 Mercruiser Alpha one 260 Engines. The boat was shipped from Toronto to Vancouver over the winter and was not winterized.
  13. Gunn

    Anyone ever replace the port side cool fuel pump assembly on MPI engines?

    So I'm an issue keeping my engine from running. The engine shut down on me a couple weeks ago while at idle, docking the boat. Couldn't restart. Dug out the fuel pressure gauge and determined I had no pressure, and then realized I couldn't hear the fuel pump prime when the engine switch was...
  14. M

    Mercruiser Engine RPM is capped.

    Need some help here. I have a 2008 310 Sundancer with 2 x 350 MAG MPI 5.7 Mercrusier engines. I just changed the manifold and exhaust to fix the overheating problem and here comes another issue which never happend before. When I speed up the throuttle, I heard a beep from computer and then...
  15. S

    Please help! What should the top/cruising speed be for my boat/engine?

    It's not actually my boat which is why you'll find I pretty much know nothing about it...but I'm in a time sensitive situation and trying to find help so I turned to here! 1995 SeaRay 370 DA with a 7.4l GAS engine.... What should the top and cruising speed be? And would another motor be a...
  16. M

    What are Proper RPM's to run for 1978 24' SeaRay Sedanbridge

    Hello, I've just purchased a 1978 24' Sedanbridge. The motor has been replaced with a 2005 Chevy 350, Edelbrock Manifolds and fresh water cooling. Alpha 1 outdrive was rebuilt. I went out the other day, ran it about 2500-2800 rpm's. This was comfortable, making about 13 knots in rolling seas...
  17. ski65nut

    Used Mercruiser 7.4 MPI for sale

    I have a 4 season old (approx 200hrs) Mercruiser 7.4 L MPI that is currently in my 33' Sundancer. It is in drop in & turn key condition Fresh water cooled, New raw water pump (maybe 5 hours on it), 1 season on new Oil Cooler. Engine was purchased as a re-manufactured long long block with new...
  18. ski65nut

    7.4 MPI replacement help!!!!!

    I just blew my 1996 7.4 liter MPI/ 330hp and am looking for guidance. My mechanic told me I can buy a long block 7.4 liter or replace it with a brand new 383/ 350HP drop in. the 7.4 is a big block and the 383 is a small block and 150 ibs lighter. Would anyone know what is recommended or have...
  19. D

    Engine drops to idle and alarm sounds for one or two seconds before returning to norm

    This past weekend after running for approximately 20-25 minutes, while cruising an alarm sounded for one second, and the boat speed dropped to idle. My instruments all showed normal readings and my bilge seemed fine as well. I started to return to the dock and after approximately 10 minutes of...
  20. B

    Engine Trim on a 2008 310 DA.

    This is my first season boating with my "new" 2008 310 DA. I previously owned a 260 DA. When I owned my old boat, after getting on plane, I would trim up my engines a fair amount and got a smooth engine noise. With my 310 after I get on plane, if I trim up my engine the slightest bit, my engines...
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