AQ145a

timothy3rounds

Recruit
Joined
Jan 7, 2023
Messages
4
I have 2 AQ145a volvo penta motors. both have what looks like corrosion in the number 4 cylinder. what is causing it and can I put a sleeve or a liner in that cylinder?
 

alldodge

Supreme Mariner
Joined
Mar 8, 2009
Messages
37,564
I have 2 AQ145a volvo penta motors. both have what looks like corrosion in the number 4 cylinder. what is causing it and can I put a sleeve or a liner in that cylinder?
You can bore and sleeve, but maybe just bore all of them and full rebuild

Don't know why it No 4 on both but check the exhaust for a leak
 

kenny nunez

Commander
Joined
Jun 20, 2017
Messages
2,630
Be sure to replace the exhaust manifolds with the genuine Volvo style. Most likely the inside of the #4 exhaust ports are going to be corroded also. They can be repaired at a aluminum welding shop then re surfaced.
 

Scott Danforth

Grumpy old guy who plays with boats
Joined
Jul 23, 2011
Messages
42,470
Do you know if there is a way to repair the manifolds? I can't affors 400 dollars for one.
no

you replace manifolds, and if in salt water, you do it often

BOAT does stand for Break Out Another Thousand.

it is a hobby that is more expensive than building hotrods and racing, and alsmost as expensive as owning an airplane.
 

QBhoy

Admiral
Joined
Mar 10, 2016
Messages
7,176
Cylinder head would be a common cause on this engine, if I have my engines correct
 
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