Be carefull. This is exactly what I did to my old tired Alpine
1592. It had low compression, and drank oil like a two stroke! I
rebuilt the head with new guides milling, and a nice three angle lapped
in valve job that I did myself.. It was a very nice job if I say so
myself. It raised the barely runnable 90psi upto 115-120. I was very
please. It started faster, without the starter spinning it so fast,
idled better, and basically ran better all the way around, although it
was still drinking oil. About three week after I did this. It melted
#3 Piston while going up a hill floored in third. The moltan aluminum
which splashed up on top of the piston was pounded in to the head,
destroying my beutifull work, it also knocked a small chunk of the
cylinder wall in to the water jacket which KO'd the block. Well, that
was fun.
So take my advice. If you do the top end of an old tired
engine, keep in mind that this is going to add stress to the other weak
areas and make them fail sooner. The revived compression was to much
for the old rings and pistons to contain, and so the blow by increased,
and with the big load of floored up a hill, it super heated the piston
and rings and then they all just melted. That was the last time I drove
an Alpine. It never ran again. If you're going to do a little, take
the time to do it all.......It costs much less in the end.
Rich (Still looking for a decent Alpine)
> ----------
> From: Frank Marrone[SMTP:marrone(at)wco.com]
> Reply To: Frank Marrone
> Sent: Saturday, June 14, 1997 12:40 PM
> To: alpines(at)autox.team.net
> Cc: alpines(at)autox.team.net
> Subject: Re: head and gasket
>
> Oh yeah, a few more wonderful things about Alpine motors. Head
> corrosion
> problems and scarcity of engine parts for many (especially large)
> oversizes. Of course you might also add the frequent need for large
> oversizes as another of the problems.
>
>
>
> At 12:12 PM 6/14/97 -0700, CHUCK NICODEMUS wrote:
> >I have removed the head +( now have(bimetal) corrosion on the back
> hole
> >both on the head and the block,,? the head has a marking of 035,looks
> >like some one hand punched those no's in on the edge. also i need to
> >know the valve throw or travel. if the removal of more material will
> >allow me to just set the head with the new gasket kit or do i need an
> >over sized head gasket??. the engine has been redone as the pistons
> are
> >marked +40. it does' run strong and if i grind the head and mill the
> >block will i have the room for the valves ,, I guess that was my
> >original thought..
> >
> >thanks chuck
> >series ll
> >B9119821
> >
> >
> Frank Marrone MK I Tiger B9471116
> marrone(at)wco.com 1966 LTD
> Series I Alpine "fix me"
> Yamaha Seca 900
>
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