Search results

  1. Scott06

    Boat bogs down after 30-90 minutes

    Rust on valve stem due to leaking exhaust manifolds or risers is one possibility. Would tear the head down and inspect the exhaust for signs of water intrusion. Did the valve hit the piston? What does spark plug look like ? Was engine previously rebuilt and improperly machined?
  2. Scott06

    oil pan SBC

    https://www.michiganmotorz.com/products/marine-parts-accessories/oil-system-components/easy-oil-drain-kits I use one of these drain hoses and hook that up to my oil extractor (Mytvac) works great. Seems to get better flow than up the dipstick. If you have an OEM dipstick with the garden hose...
  3. Scott06

    2011 Mer 4.3 inboard on Tahoe Q5i - engine bogging down

    The carb number is stamped in the float bowl this is 100% fool proof way to get correct kit. Since the mercarb uses a foam/plastic float would get a replacement for it as they can be brittle when taking apart the carb. Would also make sure the power valve spring is working smooth. Would think...
  4. Scott06

    Power Steering fluid question

    Ive always used ATF, but the power steering/ tilt fluid will work fine too.a non detergent straight weight motor oil,jack oil etc will all work, is there fluid in there now ? If red it is atf, if clear like oil use the ps/ tilt fluid . you can always drain out what is in there and use what...
  5. Scott06

    2011 Mer 4.3 inboard on Tahoe Q5i - engine bogging down

    it is not hard, just requires cleaning and attention to detail. You likely have a mercarb at Mikes carb parts they have good quality kits and instructional videos. I use a harbor freight ultrasonic cleaner for the parts. Before you tear into it rule out fuel flow restrictions and make sure the...
  6. Scott06

    2011 Mer 4.3 inboard on Tahoe Q5i - engine bogging down

    Would be looking for anything restricting fuel flow like the antiphon valve, if you can measure fuel pressure at that rpm would be good. Would think you may be looking at a carb rebuild.
  7. Scott06

    2011 Mer 4.3 inboard on Tahoe Q5i - engine bogging down

    carbureted or fuel injected? Have a engine serial number. Does it eventually recover or doesnt go past 25 mph? What did the contents of the fuel filter look like start with some basics - engine compression. check ignition timing including total advance test strength of ignition with spark...
  8. Scott06

    knock sensor, brass Y-fitting for both the sensor and drain plug Cant find a part number

    gotcha sorry for the confusion.
  9. Scott06

    Power steering return line keeps blowing at cooler 95' 7.4 Bravo1

    So it hasn't blown since you replaced it completely? If it hasn't yes I would blame it degradation of the hose. In hydraulics except in a pinch we never put a new end on an old hose for that reason. Inside of hose may have broken down restricting flow to where pressure builds up
  10. Scott06

    knock sensor, brass Y-fitting for both the sensor and drain plug Cant find a part number

    Man that is salty for what amounts to a 1/4" npt wye. You could order stainless pipe fittings from a place like mcmaster carr for a few bucks less
  11. Scott06

    3.0LX Mercruiser always running cold

    The bog is probably more carb rebuild related. You can see if it goes away after the thermostat.
  12. Scott06

    Idle issue 4.3 mercruiser LX

    go to mikes carb parts as mentioned by AD above good quality parts at reasonable prices https://www.carburetor-parts.com/
  13. Scott06

    2007 Merc 5.0 TKS stalled at speed, had to be towed

    Take the wiring harness off the switch (down above oil filter) and stick a jumper wire in the harness plug to jump across the two wire terminals. I keep a couple of short sections of wire for just this purpose in my tool kit on the boat.
  14. Scott06

    3.0LX Mercruiser always running cold

    The thermostat would be the logical thing to replace the troubleshooting you’ve done so far
  15. Scott06

    Oil in bellows questions…

    You are correct if it holds pressure drive isnt the issue. You will get a small amount of spillage at the poppet valve in bell housing when removing and installing the drive
  16. Scott06

    Anyone please help with my mercruiser 5.7 thunderbolt v igntion engine, hard to start

    this …either switch is misadjusted or lower shift cable needs replacement. As the cable wears it take more force to shift and it can trip the shift interrupt. Disconnect lower shift cable from shift plate should shift easily by two finger grip. If not pull drive and diagnose
  17. Scott06

    1989 Mercruiser 4.3 LX, Alpha 1 Gen 1 Overheating

    Yes merc deleted the o ring on top of veritcal driveshaft so. Do not reinstall it, i wonder if your water tube is misaligned and thats why you cannot get the two havles back together
  18. Scott06

    888/233 Out Drives

    I would think it could go higher especially if it has been rebuilt.
  19. Scott06

    VP 4.3 MPI sluggish on holeshot

    Well it’s always the simple stuff … flame arrestor completely clogged with fuzz. Their mechanic just did cap rotor wires plugs can’t imagine he missed that. Water tested it seemed to be back to normal so didn’t get into the timing
  20. Scott06

    VP 4.3 MPI sluggish on holeshot

    Thanks apprecaite the comments. Wondering if the mechanic put wrong plugs in …
Top