Logo
FULL SITE MENU

Search results

  1. D

    4.3L idle and running probs

    Hi from sunny Scotland. Due to some unseasonal sunny weather I decided to fire up my boat for the start of the season. On the trailer the engine started well and after the fogging oil burnt off idled quite happily for around 15min when I shut it down. I took the boat to the loch the next day...
  2. D

    Prop diameter

    :confused: Hi, I have a wee question about prop diameter. I have 18 1/2 ft speetboat with a Mercruiser 4.3L / Alpha 1 drive ( 1:1.86 I believe). Normal cruising weight approx 3100lbs. At present the WOT is 5200rpm with a 14 3/4 x 21P prop on it. I would like to change this to a 23P prop as the...
  3. D

    Alpha1 UJs and drive shaft

    "Hi, can anyone give me an ide "Hi, can anyone give me an idea of how to remove the complete UJ driveshaft. I need to replace the UJs and have been offered a brand new complete shaft for about the same price as the parts. Is it easier to replace the joints or can I pull the shaft easily enough...
  4. D

    TStat check balls

    [b][PLAIN]"< Hi Guys, while winterizing my 1990 4.3L I removed the 2 hoses going to the risers to drain them. I noticed the check balls were loose and not seated on the housing. I tightened the nut, but even at the end of the thread the balls were still loose. Could the springs be compressed...
  5. D

    Loose parts

    "Hi, when I had my lower housi "Hi, when I had my lower housing off to change my impeller I noticed some material in the exhaust port on the upper housing. It looked like stainless plate, 2 pieces. I tried to catch them with pliers but they fell back into the exhaust bellows. Any ideas what...
  6. D

    43l power loss

    "Hi from sunny Scotland, my 19 "Hi from sunny Scotland, my 1990 4.3l has developed a strange problem. After about 30mins running the engine will lose power and drop off the plane. It will idle smoothly and rev to about 2800 rpm no problem. If I switch off and leave it for about 20-30 mins it...
Back
Top