pushrod or overhead cam?

wally jr

Petty Officer 2nd Class
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Jul 1, 2004
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102
which is better..i have a 4 cyl volvo penta aq125a motor. i think i have an overhead cam. whats the diffrence and which is a better motor?
 

wally jr

Petty Officer 2nd Class
Joined
Jul 1, 2004
Messages
102
Re: pushrod or overhead cam?

chapter 7 in my clymer volvo shop m,anual is dedicated to overhead cam motors. it covers aq120,125a,125b,131a,140,145a,145b,151b,and 171a. the 171a is the only diddrent one i can see, it's a twin cam shaft 16 valve.. so there is overhead cam in use or i'm reading wrong..
 

Bondo

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Apr 17, 2002
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71,103
Re: pushrod or overhead cam?

pushrod or overhead cam?
Generally Speaking,<br />Overhead Valve motors are Torqueier...... Lot's of Power down low...........<br />Overhead Cam motors make their Power at Higher RPMs............<br />
so there is overhead cam in use or i'm reading wrong..
Volvo's are 1 of a Kind.................... :D
 

imported_Mike_M2

Petty Officer 2nd Class
Joined
Jan 17, 2004
Messages
174
Re: pushrod or overhead cam?

A 125 is an overhead cam. It has a timing belt that runs to the head so it has to be.
 
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