ran across this express
Posted: Jul 19th, '07, 00:05
by Ric
SLOW down popcorn,,,,, I gave the man the boat Monday in spec,,,exhaust ,intake, valves to the spec,,,timing belts ,and new tensioners in .,boat runnin at 30knts and 4k rpm,,,,,he never heard the boat ,,never worked on the boat, never did anything to the boat, but sell me the engines in the crate,,,,,,,,,,,,,,,,,,,,,,,,,nobody has but me..and 1 guy,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, he is doing this based on what i say !
so i told him to pull the heads, actually boroscope it first ..pull the valve cover ,the injectors and scope it ,,,before that,,,,,,,, document all valve adjustments as being to the spec, (as he did not do them ),if he does not see damage to the top of piston with the boroscope,,,then pull the heads ( i know what i am hearing and have heard,,,,,are they junk you ask me?,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,I say yes,,.............,motors have to come out ,, from the oil pan to the glow plug,either that or new blocs,,,,,,,,,,,,,,I been wrong before,,but hey what can i do ,,,,,,,,,,,,,,,,,,,,not do that,,!
,,he is documenting it for me, for yanmar,, ultimately if necessary (for the master who mediates between the party's,) I know what i did ,,,and those powertrains were babied,,,everything i read Is bullshivicky,,, the adjustments didnt amount to nuttin ,,they were not that far out of spec after 1250 hours to begin with
intake ranges are .017 to .023.with the sweet spot at .020.and exhausts are ,047 to .053 sweet spot at .050....i had a couple intakes a little tight and a coulple exhausts at .058..nothin to get wet about ,,,,... now! everything right to the spec runnin smooth like it allways has it is a manufacturing problem design or Valve assembly metalurgy problem or something else .....NOBODY IS SAYING...( and not somebodys neglect,,,)
,its the tickin ,,,thats got me ,,,like a bomb waiting to go off ,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,i wont let it