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  1. K

    4.3 l mercruiser one piece exhaust manifold temp senor install

    Please elaborate..... seems that ol 2 piece is preferred. Casting is pretty much simple process. Is it one ( bad mould) that constitutes for all to be bad? I get that quality of iron used may be questionable ( worked in steel heat treating)
  2. K

    4.3 l mercruiser one piece exhaust manifold temp senor install

  3. K

    4.3 l mercruiser one piece exhaust manifold temp senor install

    I do have a spare set of 2 piece. Since one piece is junk.. where one would install temp sensor. I haven't taken manifolds out yet Don't know what is the inside shape.
  4. K

    4.3 l mercruiser one piece exhaust manifold temp senor install

    Does anyone has a diag or Pic where water meets exhaust
  5. K

    4.3 l mercruiser one piece exhaust manifold temp senor install

    Thank you for responses. I would like to keep it in org state. I do realize that one piece will rust out from the inside. Just want to keep an eye before it does. Thus the question at what point. I would think....Given that all other components are in working order and maintenance is being...
  6. K

    4.3 l mercruiser one piece exhaust manifold temp senor install

    Hi there crew. I acquired 19 footer monteray with 2001 4.3l mercruiser equipped with one piece exhaust manifold. Iron testing, starboard manifold was getting hot, compared to port. I cleaned the water ports as much I I could and it helped. Both manifolds were same temp ( to touch), but when I...
  7. K

    1985 4.3l v6 mercruiser piston rings

    Hi, just an update ...hastings 2M5712 came in. Top ring is 0.146 width. so no good. 2nd ring is good width. So back to square one. Didint bother with oil rings. Anyone know the part # for rings width .175"-.188" for 4" standard piston? 4.3 engine? PS.:I am ordering parts from reputable auto site...
  8. K

    1985 4.3l v6 mercruiser piston rings

    Thank you for steering me to follow the block #. Came with 2M5712 hastings rings. Mahle 40664CP. I would love mahle, but delivery time is Jul 31 . Any thoughts on hastings rings?
  9. K

    1985 4.3l v6 mercruiser piston rings

    Thank you for reply. I did changed all bearings, polished journals. Tolerances are great. Also measured cyl with caliper in few spots. Seem fine.
  10. K

    1985 4.3l v6 mercruiser piston rings

    That makes more sense. Thank you Sir. There is no tag attached. It is possible that at one time engine was replaced. Just got 22 crestliner and history of the boat is unknown to me. Block's number is the one to be from 1987 Will follow this lead and check other years for proper rings.
  11. K

    1985 4.3l v6 mercruiser piston rings

    First digit is hard to read. Could be cast flaw but all digits
  12. K

    1985 4.3l v6 mercruiser piston rings

    It's 10105867 no balance shaft
  13. K

    1985 4.3l v6 mercruiser piston rings

    I did the hone. Keeping with old pistons...thus the set back. Can't find the rings
  14. K

    1985 4.3l v6 mercruiser piston rings

    40664CP from mahle seem next hit but there is no specs as to width of the rings
  15. K

    1985 4.3l v6 mercruiser piston rings

    I have ordered E251K set but wrong radial width of the ring
  16. K

    1985 4.3l v6 mercruiser piston rings

    Hello. Can someone steer me in the right direction on sourcing std piston rings. I am in the rebuilding process and need rings for org pistons. Seems that I find right rings. Can someone share the part #. I have been researching auto sites and ordered the set, but radial with is not correct...
  17. K

    mercruiser 120 hp drive shift cable route

    hi.i bought boat with mercruser 2.5l, 1979-1982 year.boat was missing an outdrive and needed an engine alignment.now i am into bellows replacment and shift cable replacment.thats were i am stuck.i did not take any notes or pictures of how shift cable was routed inside engine compartment.could...
  18. K

    16 ft aluminum starcraft "beauty" operation

    greetings,i have 16 ft starcraft aluminum bowrider in need of major repair.i bought this beauty at auction and came with canopy and 75hp mariner.upon close inspection I noticed pitting on transom skin.not good.i then realized that motor's backing plate is made from pressure treated plywood.not...
  19. K

    '67 60 hp Johnson v4 points setting

    I am bringing to life 1967 60 hp Johnson v4.on the test run motor would fire right up,idle fine,but was a no go at past idle.no change adjusting mixture or applying choke.took her home and when spark was checked.1,3 cyl had good spark.#2 had weak spark,4 sporadic spark.i got the problem down to...
  20. K

    1967 Johnson prop seal removal

    Hi.i am in the process of changing seals on lower unit of 60 hp johnson'67.after changing drive and shift shafts,I am stuck with prop shaft seal.as far as I can tell needle bearing has to come out.is this right? Another question i have is gasket between lower unit and mid section.does it has to...
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