2 Liter Rebuild Questions

[AlfaNeely@domain.elided]

In a message dated 11/14/2002 11:36:04 PM Central Standard Time, 
owner-alfa-digest@domain.elided writes:


> Date: Thu, 14 Nov 2002 20:13:00 EST
> From: GenericWood@domain.elided
> Subject: 2 Liter Rebuild Questions
> 
> Here's a couple of dumb questions I can't find answers to in my shop 
> manual.  
> I'm putting my 2-liter lower end back together.  
> 
> 1) I've been told the rods must go in with the stamped number on the 
> exhaust 
> side, but does it matter which cylinder they go in?  They are not numbered 
> 1 
> through 4.
> 
> 2) Is the general consensus that sealant helps the cylinder o-rings do 
> there 
> job?  Or should I just let the new o-rings handle it?
> 
> Thanks in advance!
> 
> Erik Wood
> '74 GTV
> '56 Giulietta Spider
> 

       Not all Alfa engines have the rods marked from the factory.  You mean 
you did not mark the rods when you took them apart?  Did you not learn that 
as a babe at Gary's knee?
       I always make sure the rods go back on the crank journal from which it 
came.  I am not sure why.  There might be wear patterns created that would be 
wrong if you move parts around and they would start wearing all over again.
       I also mark the rods to make sure the correct rod cap goes back on the 
rod from which it came.  As the rods and caps are supposed to be round, 
moving them around is very bad - unless you have the rods reworked.  The same 
is true of the main and cam bearing caps.
       Look at a rod from the side.  You will see that the beam of the Alfa 
rods is not centered on the bearing.  The beams are offset.  My old Autobooks 
Giulia workshop manual on page 21 shows the placement of the asymmetric rods. 
 The offsets on cylinders 1 and 2 face away from each other.  That is, the 
piston centers are farther apart than the crankshaft journals.  The same is 
true of cylinders 3 and 4.

       I do not put sealant on the O rings at the bottoms of the cylinder 
liners.  If clean, the tiny rubber band things seem to seal just fine.  
However, a bit of silly cone sealant should not hurt anything.

Ciao,
Russ Neely
Oklahoma City
--
to be removed from alfa, see /bin/digest-subs.cgi
or email "unsubscribe alfa" to majordomo@domain.elided