The message to which you are about to reply is shown first. GO TO REPLY FORM



 VIEW    REPLY TO THIS MESSAGE    PRINT   SAVE 

What to do....what to do 120-130

posted by  planetman on  Wed Mar 19 17:37 CST 2008
Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS] RSS Feed     [IGNORE ALL POSTS]
last visit: Fri Oct 24 09:29 CST 2014
[RELATED]

Hello,

If you are taking the block to have the cam bearings changed, also take the pistons and ask the machinist to measure the bores and the pistons for wear.

What determines whether you can hone and re-ring is whether the bores are still close enough to being round.

Believe it or not, but over time the bores become egg shaped(an exaggeration), but out of round enough from the thrust of the piston over to one side each time combustion take places. And if the bores are egg shaped, you can not get nice new round rings to seal properly.

If you are considering the B21 pistons, you have to use the later style connecting rods that use 24mm wrist pins.

BTW, new original Mahle pistons in at least 3 over bore sizes are still available.

If you have an early B20 that uses 22mm wrist pins, I usually have .030" overs in stock, but I still can get .015" and .040" as well.
--
Eric
Hi Performance Automotive Service (formerly OVO or Old Volvos Only)
Torrance, CA 90501






USERNAME
Use "claim to be" below if you don't want to log in.
PASSWORD
I don't have an account. Sign me up.
CLAIM TO BE
Use only if you don't want to login (post anonymously).
ENTER CAPTCHA CODE
This is required for posting anonymously.
OPTIONS notify by email
Available only to user accounts.
SUBJECT
MODEL/YEAR
MESSAGE

DICTIONARY
LABEL(S) +
IMAGE URL *
[IMAGE LIBRARY (UPLOAD/SELECT)]

* = Field is optional.

+ = Enter space delimited labels for this post. An example entry: 240 muffler


©Jarrod Stenberg 1997-2022. All material except where indicated.


All participants agree to these terms.

Brickboard.com is not affiliated with nor sponsored by AB Volvo, Volvo Car Corporation, Volvo Cars of North America, Inc. or Ford Motor Company. Brickboard.com is a Volvo owner/enthusiast site, similar to a club, and does not intend to pose as an official Volvo site. The official Volvo site can be found here.