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



 VIEW    REPLY TO THIS MESSAGE Replies to this message will be emailed.    PRINT   SAVE 

B20 piston and conrod weight 120-130

posted by  Bennie on  Sun Aug 21 04:58 CST 2005
Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS] RSS Feed     [IGNORE ALL POSTS]
last visit: Wed Nov 28 03:03 CST 2007
[RELATED]

Since I had some minor... problems with my B20 (see this post) I have the block completely apart. I plan on replacing main and con rod bearings.

The pistons are first oversize (0,15) and the piston ring end gap is currently 0,55mm. I plan on just keeping these, but when do you guys replace the rings?

Also, since this engine never has been realy smooth I will have the crank shaft balanced. I also measured the weight of the piston and rods:

#1 piston 579 grams, con rod 817 grams.
#2 piston 581 grams, con rod 822 grams.
#3 piston 579 grams, con rod 814 grams.
#4 piston 581 grams, con rod 822 grams.

This adds up to a total (including the piston pin (all 151 grams) of:
#1 1547 grams.
#2 1554 grams.
#3 1544 grams.
#4 1554 grams.

I know the conrods are marked but is there any harm in redistributing the rods so I have a better weight distribution? Currently the heaviest piston are on the heaviest conrods. I thought I might just match the heavy pistons with light rods and vice versa. But is it more important to have #1 and #4 have the same weight (and #2 and #3) or should #1 and #3 (and #2 and #4) match? (like it current)

cheers, ben

--
P131, '65, B20B+M47+DGV. P131, '69, B20E+AW71L+LSD. (www.tinustechniek.tk)






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.