Greg Kingman
12-28-2008, 12:19 PM
Greetings to all A-4 owners-
I recently did a compression check on my A-4 (Vintage 1967), and found 30# in Cyl. 1 & 2; and 120# in 3 & 4. Upon removing the head, I found an 1/8" section of head gasket missing between 1 & 2. Upon further inspection I found the valves in need of grinding. The rod end cap bearings checked out with .002 clearances as did the Main bearings. The internal surfaces of the motor looked very clean. The cylinder walls appear to have the original milling marks visible , with no scoring or scratches.
My question is, should I change out the rings & hone the cylinders just for drill, or utilize the "if it ain't broke, don't fix it" approach?
Thanx,
G
I recently did a compression check on my A-4 (Vintage 1967), and found 30# in Cyl. 1 & 2; and 120# in 3 & 4. Upon removing the head, I found an 1/8" section of head gasket missing between 1 & 2. Upon further inspection I found the valves in need of grinding. The rod end cap bearings checked out with .002 clearances as did the Main bearings. The internal surfaces of the motor looked very clean. The cylinder walls appear to have the original milling marks visible , with no scoring or scratches.
My question is, should I change out the rings & hone the cylinders just for drill, or utilize the "if it ain't broke, don't fix it" approach?
Thanx,
G