Re: [alfa] V6 rebuild questions

[sherwood white <vze2skmv@xxxxxxxxxxx>]

> I WOULD NOT TAKE THE BLOCK OUT MAYBE FLUSH THE CRANK  AS FAR AS THE PLUGS IN THE CRANK WHY TOUCH THEM I HAVE NEVER HEARD OF
> ONE COMING OUT THAN AGAIN I NEVER HEARD OF ANY ONE TAKING THEM OUT.  RESIZING THE RODS SOUNDS VERY AMERICAN , EVEN THOUGH
> FIAT HAS NO CLUE ABOUT QUALITY CONTROL I DON'T THINK LETTING YOUR LOCAL MACHINE SHOP RESIZE YOUR RODS IS A GOOD IDEA, NEW
> BEARINGS IS GOOD.  V6 CAM SHAFTS HAVE WEAR PROBLEMS RESTRICKING OIL FLOW TO THEM WHY?  THE ONLY THING WRONG WITH THE OIL
> SYSTEM IS THE 150 LBS OF PRESSURE I HAVE SEEN ON ALMOST ALL 2.5 CUT THE PRESSURE NOT THE FLOW YOU WILL INCREASE BEARING LIFE
> HAVE LESS LEAKS(IF SOMEONE AT ALFA HAD THE NERVE TO ADMIT THE PRESURE WAS TO HIGH INSTEAD OF ALL THOSE WARRANTEE HEADGASKETS
> THEY HAD TO LOSE MILLIONS ON THAT, IF THEY COULD ONLY ADMIT THEY MADE A MISTAKE GOD FORBID)  AND BY THE WAY DID I SAY YOU
> WILL GAIN HP AND GAS MILAGE AND LESS CHANCE OF OIL GETTING ON THE TIMING BELT WHICH CAUSES BENT VALVES . THATS IS ALOT TO
> GAIN  FROM ONE LITTLE SPRING DON'T YOU THINK?  IF YOU POLISHED YOUR INTAKE UNPOLISH THEM BEFORE YOU PUT IT BACK TOGETHER.
>
> "Denis, JL" wrote:
>
> > Oh geez, here goes: So, Milano sprung head gasket leak and it was decided that that needed to be fixed pronto. Last was
> > fall 2002. Finally got into it late spring 2003. Pulled the heads and "might as welled" a rebuild. New gaskets of
> > course, guides, seal, valve job, porting heads and trumpets (and some lovely powder coating on cam covers and
> > trumpets!), valve lash caps and that's done. Phew. OK, so now I look at the cylinders and pistons and think about oil
> > consumption and pressure. OK, so "might as well" change the rings (to moly-coated Hastings, I think I will like
> > these... ). Now, as for the bearings - well, here's my problem (finally). The crank's not out yet but the #3 and #4
> > cylinder con rod big ends show (down to the backing) a whole lot more wear than any of the other bearing sets. So is
> > this indicative of anything?
> > Also, does anyone have any idea why there are cavities, or "sumps" if you like, in the heads that seem to store a lot of
> > dirty oil and do not much of anything useful? If you've ever had a cam cover off, you'll know what I mean - those two
> > areas bounded by webbing between the head bolts and the cam.
> >
> > Notes:
> > These bearing inserts are at extreme opposite ends of the crank;
> > Could there be a blockage in the oil feed?;
> > Is this characteristic of the way oil is distributed thru an Alfa V6?;
> > Could the con rods be distorted (if so, would be only very slight)?;
> >
> > Should I:
> > Ignore and just change all the inserts;
> > Clean out the crank oil passages and replug the plugs;
> > Have the con rods re-sized;
> > Put oil restriction orifices in to limit oil going to the heads;
> > Or What?
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