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  1. L

    1996 Four Winns Sundowner with 5.0 Cobra engine and drive

    Used the same little pump I used for filling the leg with hypoid oil for filling the tilt/trim pump after thoroughly washing it out, same threads as the drive drain plug hole. Just had to keep disconnecting the tube from the pump to let the air pressure out. A lot less potential for making a...
  2. L

    1996 Four Winns Sundowner with 5.0 Cobra engine and drive

    He certainly is, I enjoy watching his videos and have watched quite a few, they've proven useful for all sorts of things such as finding out where the ancillary brackets bolt on the engine (or rather water pump) which I found by watching a video of him change ancillary drive belts. The only...
  3. L

    1996 Four Winns Sundowner with 5.0 Cobra engine and drive

    At 9:45 into Michael's video (that I linked to above) he removes the expansion valve. There are 3 seals on the expansion valve one of which is white and differs from all the other seals because it's white and some kind of harder material. My white seal has a fairly neat looking 45 degree split...
  4. L

    1996 Four Winns Sundowner with 5.0 Cobra engine and drive

    Thanks, I'm just copying Michael's method really so credit should go to him. In my last post picture the 2 O rings outside the O ring box are one that I took off and same size as one I replaced it with. The one I took off had very slight scuffing in an area on it's outer edge and (if the one I...
  5. L

    1996 Four Winns Sundowner with 5.0 Cobra engine and drive

    I looked all over the internet, made phone enquiries, etc, nowhere has a kit for the pump. I bought a few sets of O rings, mostly metric but one imperial set. Today I removed the trim pump, stripped it and currently checking O rings and replacing any I think are suspect (if I've got suitable...
  6. L

    Mercruiser hose hanging from exterior transom components

    Thanks, I will pass this information on to my friend.
  7. L

    Mercruiser hose hanging from exterior transom components

    Asking for a friend, this isn't my boat. What is this hose hanging at the rear?
  8. L

    1996 Four Winns Sundowner with 5.0 Cobra engine and drive

    Thanks, I've used lots of hydraulic equipment in the past (and we all have PAS on cars) and I can understand a bit of squealing but this sounds kind of half squeal half grating, I wondered if there was a problem with the connection between the motor and pump or some an internal problem with the...
  9. L

    1996 Four Winns Sundowner with 5.0 Cobra engine and drive

    Thanks for the tips Lou. I'd prefer to address the pump first because I can't access the pump with boat interior trim refitted but can access the rams, and I don't know if it's the pump/rams/both that need fixing. That said, if I knew it was the rams at fault I could fix them with the parts...
  10. L

    1996 Four Winns Sundowner with 5.0 Cobra engine and drive

    Kit 3854397 just contains O rings, no hard parts. I looked at the Marineengine.com site and added all the O rings that kit 3854397 contains to 'my basket'. Some of the original parts are no longer made but in most cases there is an equivalent part that is available. I compiled a list of part...
  11. L

    1996 Four Winns Sundowner with 5.0 Cobra engine and drive

    I looked at the link you sent, part #65 is 3854247 which does match the part number on my marina's website, so would you agree the marina I contacted has the correct kits to rebuild my rams? I've been researching pump rebuild kits, knew I'd watched a Michael Romer video rebuilding the same...
  12. L

    1996 Four Winns Sundowner with 5.0 Cobra engine and drive

    I emailed a marina to ask if they could supply a rebuild kit for my rams and pump (and sent them pictures of my rams and pump). This was their reply... Hi Simon, Im afraid the ram seal kits are the only item we can help with, we have no supply for the end caps required...
  13. L

    1996 Four Winns Sundowner with 5.0 Cobra engine and drive

    Thanks. I did a bit more reading and it seems lots of these rebuild kits are aftermarket with complaints about quality. Maybe they're all aftermarket if OMC no longer exists? 2 Rams so would I need 2 of these kits? I might ask a hydraulics company like this...
  14. L

    1996 Four Winns Sundowner with 5.0 Cobra engine and drive

    I found this on Ebay, does it look like the correct parts to you? https://www.ebay.co.uk/itm/314922204566
  15. L

    1996 Four Winns Sundowner with 5.0 Cobra engine and drive

    I can buy rebuild kits for the SX rams but I haven't seen any for the Cobra rams. Don't think I've heard of BRP, could be a problem getting hold of the Cobra parts. Is my pump (pictured above) standard SX? I read that someone's rams didn't need servicing for 35 years, my rams don't look in...
  16. L

    1996 Four Winns Sundowner with 5.0 Cobra engine and drive

    Thought my trim hydraulics were fixed after I changed an O ring on the pump, the drive did stay up over night when I test fitted it a few weeks ago. But now the drive is back to falling slowly again, no external leaks so the problem must be inside the rams or the pump.. But which? 1995 OMC...
  17. L

    1996 Four Winns Sundowner with 5.0 Cobra engine and drive

    Thanks. When I was looking at buying a replacement prop I looked at one that might have been 14 x 21, the seller told me the 1/2" less diameter wouldn't make much practical difference. Is that true?
  18. L

    Need to determine best prop for weird setup

    Why did they change prop sizes in 69?
  19. L

    1996 Four Winns Sundowner with 5.0 Cobra engine and drive

    Thanks, I understand the prop should allow the engine to reach max rpm etc. I would have a good idea what to expect from a change in pitch if I knew a baseline (good engine and good prop) but my engine and prop were both bad when I bought the boat, I just went on marina advice and cost when I...
  20. L

    Need to determine best prop for weird setup

    iIrc both motors (Evinrude and Merc) would be around 60/70 hp. But all OMC stuff used bigger props than Merc stuff. I know there's a difference in prop to cavitation plate and gearing but they were design choices by OMC/Merc respectively, my question is about what the trade-offs are between prop...
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