valve clearance adjustment - Alfa Romeo Bulletin Board & Forums
 
LinkBack Thread Tools Display Modes
post #1 of 5 (permalink) Old 05-07-2014, 07:01 PM Thread Starter
Registered User
 
alfaromero1067's Avatar
 
Join Date: Jan 2014
Posts: 95
valve clearance adjustment

Hello, looking for instructions on how to adjust valves on an 89 spider....If you could forward page from shop manual...appreciate your help..
alfaromero1067 is offline  
Sponsored Links
Advertisement
 
post #2 of 5 (permalink) Old 05-08-2014, 05:35 AM
BB Janitor
Platinum SubscriberAdministratorSuper Moderator
 
ghnl's Avatar
 
Join Date: Oct 2005
Location: Mebane, NC
Posts: 16,266
Garage
Contact the Tech Librarian of the AROC-USA. Hey can help you get manuals for your car.

The short version is you have to remove the camshafts to access the shims underneath the buckets (aka tappets/cam followers). Swap in a thinner shim to increase the clearance or a thicker shim to decrease the clearance. There is a 'trick' where one can slacken the timing chain then carefully lift off one camshaft at a time without disconnecting it's gear from the chain to avoid having to split the chain.
Attached Images
 

- - Eric
don't read this
~ 1984 Spider Veloce ~
- -~ 1981 GTV-6 ~
Mebane, North Carolina


To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.


To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.
ghnl is online now  
post #3 of 5 (permalink) Old 05-08-2014, 07:19 PM Thread Starter
Registered User
 
alfaromero1067's Avatar
 
Join Date: Jan 2014
Posts: 95
Thanks Eric, I adjusted valves on Triumph years ago with just a feeler guage and a wrench..do I need to purchase these shims in different sizes?
alfaromero1067 is offline  
Sponsored Links
Advertisement
 
post #4 of 5 (permalink) Old 05-08-2014, 09:29 PM
Push hard and live
Gold Subscriber
 
DPeterson3's Avatar
 
Join Date: Apr 2007
Location: Carson City, NV
Posts: 8,862
Garage
Yes. You either need a friend who has a full stock of the shims and will swap out with you, or you will buy them one at a time which will be slow and expensive, or you will buy a full stock of shims which is a couple hundred dollars or so.

The shims come in steps of roughly .001. If you get anal about it, you can slightly grind the face, so long as you have the right tools for the job, and get all clearances spot on. Mostly, the stock shims will get you within an acceptable match of each other.

Once you've done the job a few times, it takes perhaps an hour to do an engine. The first time will probably take you a day.

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)
1971 Montreal "The Full Monty". Fair winds and following seas

Current Alfas
59 102 Touring Roadster - restoration complete, enough Alfa for any rational man. Or irrational, for that matter
Oops. Add to the "present" list, 10204 01488, 2000 Touring Roadster project

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 40 years) Over 55 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...
DPeterson3 is online now  
post #5 of 5 (permalink) Old 05-09-2014, 05:58 AM
BB Janitor
Platinum SubscriberAdministratorSuper Moderator
 
ghnl's Avatar
 
Join Date: Oct 2005
Location: Mebane, NC
Posts: 16,266
Garage
Sometimes, if you are really lucky, you can swap shims around - take one out of a tight valve and swap it for one with a loose valve. If so, you should also run right out and buy yourself a lottery ticket because it is your lucky day...

If you don't have that friend with a full set of shims you should at least measure & record every shim - even those that are 'in spec'. Then if at some future date you need to 'adjust' a valve you will know what thickness shim is in place & can calculate what new size you need (assuming you remember where you kept the list you made).

- - Eric
don't read this
~ 1984 Spider Veloce ~
- -~ 1981 GTV-6 ~
Mebane, North Carolina


To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.


To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.
ghnl is online now  
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:
OR

Log-in










Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



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

 
For the best viewing experience please update your browser to Google Chrome