[alfa] Re: alfa-digest V9 #1195

[Nash Bap <nashbap@xxxxxxxxx>]

Mark:
 
Is it possible that you have the wrong O rings? I recall having the same problem when I rebuilt my 1750 engine years ago. Turned out I was supplied O rings for a 2000 engine. The O ring must be a tight fit on the liner. If even slightly loose it will bunch up and prevent the liner from completely seating.
 
I would try what Jeff has suggested- insert the liner without the O ring first. If it is now fush with the deck the problem is the O ring; if it still protrudes it's something else.
 
When you get it all sorted out I suggest you put a smear of Hylomar on the O rings before assembly.
 
Regards,
 
Nash Bapasola


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Date: Thu, 18 Mar 2004 10:24:31 -0500
From: "Jeff Greenfield" 
Subject: RE: [alfa] liner-block clearance

Mark -

I'm pretty sure that the spec for liner protrusion listed in the manual is
WITHOUT the o-rings in place.

IOW, drop the liners in sans o-rings, measure the protrusion if it is within
spec (not that there is much you can do about if it isn't), then put the
o-rings in and assemble everything.

I know that those little o-rings are all that separates the coolant from the
oil and it is kind of scary, but it seems to work (most of the time :-)

Jeff

- -----Original Message-----
From: owner-alfa@domain.elided [mailto:owner-alfa@domain.elided] On Behalf Of Mark
Patterson
Sent: Thursday, March 18, 2004 8:05 AM
To: alfa@domain.elided
Subject: [alfa] liner-block clearance

I just put new liners in my 1750, and they have much
more clearance (~0.018") above the block than the spec
(0.002"). The clearance is pretty consistent across
all of them. But I have them just sitting in there,
rather than being pushed down with a washer-pipe
combo. Should the measurement be made with them
pushed down? (I don't know if the o-ring could be
holding them up a bit.) How much clearance is too
much?

Mark

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