Measure liner height above the block? - Alfa Romeo Bulletin Board & Forums

  #1 (permalink)  
Old 07-14-2011, 10:14 AM
Saar's Avatar
Senior Member
Gold Subscriber
 
Join Date: Jun 2009
Posts: 437
Measure liner height above the block?

Hi,

I'm about to install new liners and pistons.
I cleaned the liners "hole" and I would like to know how do you measure the correct height of the liner comparing to the engine block top edge.

Thank you,
Saar.
__________________
Restoring Spider 88
My Mitsubishi Pajero Blog
My car games site
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2 (permalink)  
Old 07-15-2011, 09:19 AM
Andrew's Avatar
Moderator
Platinum SubscriberSuper Moderator
 
Join Date: Mar 2004
Location: Berkeley, CA
Posts: 14,672
Push them down by hand firmly with no o-rings, lay a substantial straight edge across the liner top, make sure it's all square and happy, and measure the excess above the block edge, if any, with a feeler gauge. There's a factory tool for this tool, but if you're asking, I'm guessing you don't have it.
Andrew
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!
Reply With Quote Quick reply to this message
  #3 (permalink)  
Old 07-15-2011, 01:13 PM
Saar's Avatar
Senior Member
Gold Subscriber
 
Join Date: Jun 2009
Posts: 437
Hi,
You are right, I don't have it...
I have a feeler gauge. I wanted to be sure the liners should be above the block end...
Thanks,
Saar.
__________________
Restoring Spider 88
My Mitsubishi Pajero Blog
My car games site
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!
Reply With Quote Quick reply to this message
  #4 (permalink)  
Old 07-15-2011, 01:24 PM
Andrew's Avatar
Moderator
Platinum SubscriberSuper Moderator
 
Join Date: Mar 2004
Location: Berkeley, CA
Posts: 14,672
I think the standard is .000 to .002" liner protrusion, but I don't have a manual in front of me. You want a heavy straightedge that won't bend (stand it on edge).
Andrew
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!
Reply With Quote Quick reply to this message
  #5 (permalink)  
Old 07-19-2011, 04:42 PM
Registered User
 
Join Date: Dec 2007
Location: Portland, OR
Posts: 95
I believe the manual says that you should install the liner hold downs and torque them to like 10 ft-lbs.

I used an aluminum bar about 1" X 3/4" X 8" long or so with a hole drilled at one end to accept the dial indicator from my bore gauge (kind of a press fit). Just zero it on a flat surface then lay the bar across the liner with the dial gauge on the block.
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!
Reply With Quote Quick reply to this message
  #6 (permalink)  
Old 07-19-2011, 11:57 PM
Saar's Avatar
Senior Member
Gold Subscriber
 
Join Date: Jun 2009
Posts: 437
thank you
Saar.
__________________
Restoring Spider 88
My Mitsubishi Pajero Blog
My car games site
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!
Reply With Quote Quick reply to this message
  #7 (permalink)  
Old 07-20-2011, 08:51 AM
Registered User
 
Join Date: May 2005
Posts: 4,611
I think the manual test is with the o-rings in place.

Robert
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!
Reply With Quote Quick reply to this message
  #8 (permalink)  
Old 07-20-2011, 10:19 AM
DPeterson3's Avatar
Push hard and live
Gold Subscriber
 
Join Date: Apr 2007
Location: Carson City, NV
Posts: 3,842
Send a message via ICQ to DPeterson3
Measuring cylinder protrusion

You are correct. The manual specifies measuring the protrusion with the O-ring seals in place, but it also calls out for the retaining tool to be in place and torqued to about 10 ft-lbs. One might guess that this would crush the O-ring sufficiently that the cylinder was metal-to-metal at the bottom.

The assembly procedure appears to assume that one is actually building the engine rather than just checking things prior to a final re-assembly. I would expect a non-O-ring check to be a valid confirmation that the cylinders were at the right tolerance.

Anyway, here's the sequence from the manual.
Attached Images
 
__________________
Don P
Carson City, NV

Past Alfas...
59 102 Touring (first Alfa $500 running)
65 Sprint GT (2nd Alfa, $500 daily driver)
102 Sprint (never did anything with it, but wish I had)
74 Berlina (first new car - now certainly rusted into oblivion)
61 Giulietta Spider G-Prod Race Car (where is it now?)
84 Spider Veloce (rarely drove it, so sold it)
86 Quadrifoglio (Dull car - no more 115s for me)

Current Alfas
59 102 Touring Roadster - restoration complete, enough Alfa for any rational man. Or irrational, for that matter
1971 Alfa Montreal (see above comment regarding rationality)

And past...
Two 1946 Stampe SV4C (c/n 294 "Rocinante" - wife's favorite airplane. RIP), and c/n 235 "La Bon Temps Femme" (gone to a new home, but never forgotten)
Zlin 50LA (+9 -6 gees, titanium spar, 1200 lbs, 260HP rumored to now be in Brazil)
1946 Luscombe 8A
Starduster Too (recently spotted at the Nevada City, CA airport - over 20 years and an entire continent separating it from our stewardship in Binghamton, NY)
1955 Cessna 170B (wife taught me to fly tailwheel in this)

And present...
64 Mooney M20E ("Rambo". My faithful steed for over 30 years) Nearly 50 years old, and just returned from a trip to Argentina in him
Newest in the fleet
1967 Piper Super Cub on Wipline amphibious floats (a true "all terrain vehicle")
2010 Triumph Thunderbird


You can snap roll an Alfa only one time...
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!
Reply With Quote Quick reply to this message
  #9 (permalink)  
Old 08-11-2011, 06:30 PM
Registered User
 
Join Date: Aug 2004
Location: USA
Posts: 1,051
I use a depth micrometer placed between the liner and the block. You get the same results if you don't have special tool C.6.0148 and two dial indicators.
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!
Reply With Quote Quick reply to this message
  #10 (permalink)  
Old 08-11-2011, 08:44 PM
tom shewchuk's Avatar
Registered User
 
Join Date: Dec 2008
Location: Brewerton NY
Posts: 757
I used the same method as Andrew. I used a carpenters combination square for the straight edge, and a feeler gauge.
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!
Reply With Quote Quick reply to this message
  #11 (permalink)  
Old 08-11-2011, 11:00 PM
Saar's Avatar
Senior Member
Gold Subscriber
 
Join Date: Jun 2009
Posts: 437
Thank you all for the responses.
I installed the cylinders head and now I'm trying to handle the camshaft issues that I got there...

Saar.
__________________
Restoring Spider 88
My Mitsubishi Pajero Blog
My car games site
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!
Reply With Quote Quick reply to this message
Reply

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Alfa Romeo Bulletin Board & Forums forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Thread Tools
Display Modes

Posting Rules
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off










Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
Copyright 2002-2011 AlfaBB.com All Rights Reserved.



SEO by vBSEO 3.3.2