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  1. K

    Strange ticking rattling on 4.3 V6

    Hello boating friends, Finally on the water but after 1st start I’ve noticed strange ticking / rattling only @ idle. Any ideas will be appreciated …
  2. K

    V6, Uneven water flow from the port side, right side is normal exhaust + warm water

    Hello before the season running on muffs after the winter I’ve noticed , Uneven water flow from the port side, right side is normal exhaust + warm water I think always like steer side ?
  3. K

    Alignment question chasing the marks or slide the tool

    Hello Folks, alignment question. I’ve got more even marks on top than on the bottom but the tool slides in and out easily. Chase the marks or send it?! take care
  4. K

    Intake manifold gasket replacement advice and tips

    Good morning guys, I would like to ask You about some advice from You guys when replacing the intake manifold gaskets. Finally I’ve found the leak in my 4.3L from 2005, The oil leaks from the intake manifolds and I have to replace the gaskets I want to buy felpro replacement gasket. It...
  5. K

    Side to Side play on wheel

    Hello I’ve got Alpha 1 Gen 2 from 2005. Boat has a play when moving from left to right, how much play is acceptable ? I can see steering cable connected to the cylinder at the transom and a nut, should I tighten it all the way in?? There is CAUTION mark there ??
  6. K

    New valve cover gaskets and still leaking V6 4.3

    Hello fiends, I bought new gaskets from Felpro, blue one, replaced and torqued to spec… still have some oil seeping from the rear corners… any ideas what to do? Use some silicone sealant??
  7. K

    Water leak to the bilge from transom please help

    Hi friends, Finally boat on the water but I’ve noticed water leak, I don’t know if it was last year because always I had some water in the bilge. this year I’ve noticed some leak from the transom. It’s getting from where the bolt is visible I think Is it bellows or something more serious...
  8. K

    Marks under valve cover

    Hello Anyone experienced this white marks under the valve cover? Is it factory markings ??
  9. K

    Upper shift shaft washer

    Hello ive Found 2 washers in my box, which one has the right thickness according to OEM ? Can anyone measure it for me pls? Ok Found the thickness is .030 so the left one 😬😬 have a great day
  10. K

    Flakes from risers manifolds when flushing

    Hey! Dry joints, freshwater, inspected and No leaks but when flushing with hose there are some flakes from rust(?) how to flush it correctly ? Thank You
  11. K

    Black grease from UJoints

    Hello friends, I Hope everybode is fine... Last year Ive replaced my Ujoints in Gen2, it was a tough job, Before this boating season Ive greased the UJoints and saw the grease is coming out is black, Im using Quicksilver Extreme pressure grease. I did maybe 15 hours last season, so why is that...
  12. K

    Elbow and exhaust manifold inspection what do you think?

    fresh water only, what do you think? I did test with acetone and no issues, I was wondering about flush with some acid or WD40 only Take care
  13. K

    Only 4400 rpms on V6 4.3 2005 19P 3blades

    Question to You, especially @achris , i have got 19ft bowrider and it runs around 4400rpms (what tacho says) at WOT and it gives me around 50mph (GPS says 80-85km/h), 90% of time Im crusiing 2500-3000rpms and its fine, gives me around 18-19mph (16,5 kts) Im running regular 3 blade prop from...
  14. K

    Strange noise Mercruiser 4.3 VIDEO

    Strange noise at idle merceriser 4.3..? Any ideas it’s difficult to locate Thanks for any suggestions
  15. K

    Compression test results 4.3L V6 2005 what do You think?

    Hello, the summer season is over and Ive decided to do a compression test on my engine. Here are the results, what do you think? Warm engine, WOT, DRY TEST: #6 - 170 psi #5 - 145-148 psi #4 - 175 psi #3 - 175 psi #2 - 178 psi #1 - 170 psi I did WET test on #5 (added 5ml - tea...
  16. K

    Grounding coil for compression test

    Hello folks Simple question, I’ve read in service bulletin that for compression test I have to remove middle plug from coil and ground it to the block, right?? But doesn’t it just short out the coil? Or maybe remove positive terminal from coil
  17. K

    4.3 V6 valve steam seals replacement

    Hello folks, Ive noticed small seep on the corner from my valve cover, I want to replace the gasket, what Ive found my risers and exhaust manifold have to be dropped, thats good time for inspeciton as well (never checked since Ive got the boat period) Question to You, when my valve covers will...
  18. K

    First compression test ever V6 4.3, how much oil into cylinders? how to do it right?

    Hello folks, i will do my 1st ever compression test on 2005 V6 4.3 Mercruiser, I want to do dry then wet, but how much oil i should pour into the cylinder for the test? All plugs out, WOT then 5 cranks per cylinder, am I right? Thanks
  19. K

    Choke setting - error in manual?

    Hello, im looking at Manual #18 and #25 The book says if you turn counterclockwise you have less choke and vice versa BUT on my boat if I turn it counterclockwise - C - Im closing my choke plate same here @ 0:25 is it an error done by Mercury ?
  20. K

    What to check / replace on a boat ?

    Hello again, Ive got Mercruiser 4.3 carbed from 2005, i have this boat since 2017. I’m wondering what more maintenance action, checks I should do Since that time I’ve replaced impeller, thermostat, starter solenoid, new spark plugs every year, rotor, alignment checked and stem new ujoints...
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