Recent content by Lou C

  1. Lou C

    persistant overheating issue.

    Does using the outdrive water pickup provide enough volume of water flow for full closed cooling? I’d think that it should if Merc sold it this way OEM. You’re having an overheating problem on the engine that had full closed cooling but not on the one that doesn’t, correct? I’m wondering if...
  2. Lou C

    Diagnose where water is coming from

    Good catch there! Btw if that hose pops off the ps cooler the motor will overheat in no time & if an Alpha drive it will fill the bilge quicker than you can say oh sh!t. Happened to me back in 2013..,,
  3. Lou C

    Diagnose where water is coming from

    yes the engine has to come out, cost, it depends on what the labor rate is in your area. if it happened at the end of a season, corrosion would make more sense to me but if at the beginning of a season, could have also been improper winterization. if you wind up having to do this, it is a big...
  4. Lou C

    Diagnose where water is coming from

    There are right ways to winterize and not so right ways, but if a core plug pushed out or rotted through that doesn't just happen for no reason, there are basically 2 reasons why: 1) improper winterization and freezing water pushed it out 2) engine was replaced and the proper brass core plugs...
  5. Lou C

    Diagnose where water is coming from

    But how did they winterize it?
  6. Lou C

    Diagnose where water is coming from

    it looked like it was coming out of the bellhousing, I agree with nola mike. Could be a core plug on the back side of the engine...I think there are a couple there. https://michiganmotorz.com/5-7l-350ci-vortec-base-marine-engine-1996-current/ looks like there are 2 core plugs in that area did...
  7. Lou C

    Help! Bought a 1993 Four Winns W/ 5.0 OMC Cobra Motor and Drive - Losing power after crusing

    Wow that's great, I had the same problem with my boat when I first bought it in 2002. Now you need to test that thermostat or just replace it, make sure to use an OMC/Volvo 160 marine 'stat. I like to test them before installing. With the 160 at idle you should run between 160-170 or so. 195 is...
  8. Lou C

    Apparent low oil pressure after coming off plane

    I would: correct the high oil level, it is possible for the crankshaft to hit the oil in the pan when it is too high and that can mix air bubbles in the oil which could lower pressure... hook up a manual gauge to your oil pressure port on the engine to see if the readings on the manual gauge are...
  9. Lou C

    Cannot get outdrive installed to the last 1/2 inch - need your advice!

    I know this is a Merc and not an OMC but the driveshafts are very similar and in my OMC Cobra shop manual it says NOT to grease the o-rings, clean the grooves for them out and just oil them. Grease in the grooves that they fit in can cause the o-ring to not sit like it should and also grease can...
  10. Lou C

    Volvo penta 5.0 GXI-G Riser bolt length issue

    Can you tell how many threads are engaged on the bolts that are also holding the remote oil filter adapter? Maybe mark it with some paint just to see? I can see your concern. I have the same type of exhaust (OMC/Volvo) but it is aftermarket Barr. I have a remote oil filter housing that I got...
  11. Lou C

    1984 3.0 cobra

    I looked the OMC catalog on marineengine.com and oddly they list everything in the valve train except the hydraulic lifters, but Merc used the same engine so I looked it up in the Merc section and here's what they show...
  12. Lou C

    2003 Crownline oil reservoir fitting

    It's similar to what you see throughout Merc cooling systems, many plastic parts, all prone to getting brittle when the boat gets on in years. Those drain plugs, all the joints between all the hoses, etc. Meanwhile the older Cobras and Volvos have brass drain plugs, and a simpler cooling system...
  13. Lou C

    2003 Crownline oil reservoir fitting

    The dipstick in the top cover in the pic above, that's exactly how every OMC Cobra and Volvo SX ever made is, dipstick in the top cover....
  14. Lou C

    Help! Bought a 1993 Four Winns W/ 5.0 OMC Cobra Motor and Drive - Losing power after crusing

    Great so how does your oil look?
  15. Lou C

    Found bolt in 4.3 bilge. Please help identify

    Once in a while I explore the nether regions of my boat's bilge with the inspection camera and a magnetic pick up tool. I was surprised that I didn't find more stuff than I did! No tools and just a few washers and wingnuts.
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