Re: Oil on air cleaner in Milano

[Fred Di Matteo <fredalfa@sprintmail.com>]

Colin Verrilli wrote:
> 
> Fred,
> Can you explain to the digest why this fix works and why the factory
> made the opening too small? Or did you write an article on this? I didn't
> check the Bosch Notes.
> Thanks,
> Colin.

Colin, It may have been 1987 when I decided to try to find the reason
for so much oil getting past the separator  in my '87 Milano.  After a
good deal of thought and experiments it seemed the high velocity of
vapors being sucked into the main air duct  pulled too much oil before
it could drain back down into the sump.  After the increased opening of
the fitting at the main air duct from the separator,  the oil loss was
reduced enough that ARI recomended it too.  
> ------- Forwarded Message
> 
> Date: Wed, 25 Feb 1998 09:47:45 +0100
> From: eedneco@eed.ericsson.se (Neil Cotie)
> Subject: Oil on air cleaner in Milano/75
> 
> Hi all,
> 
> Colin's right, the oil is from the oil breather hose that hooks into
> the air intake hose.  The DiMatteo (TM) fix ;-) is to disconnect the
> oil breather hose, and take out the metal pipe in the end of it,
> take the metal pipe over to where your drill is, and enlarge the inside
> diameter of the pipe as much as possible.  The problem is that
> the small size of the pipe as it enters the air intake hose causes
> too much oil (instead of just oil vapour) to be sucked into the intake.
> I've done the mod on my milano and it certainly helped, but didn't
> entirely eliminate the problem.
> 
> I'm not sure how clear my explanation is, but hope it helps...  ;-)
> 
> Cheers,
> Neil
> 
> Aachen, Germany
> 
> ------- End of Forwarded Message