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Ticking noise from engine[120-130/1963] posted by Chris Stevens on
Sunday, 10 January 1999, at 9:56 p.m.
I have a 1963 122 wagon with a B18 engine. It has generally run very well, but yesterday it suddenly stareted making a "ticking" or clattering noise which is very loud at idle but disappears as rpm climbs. The noise started out fairly quiet, but within a few minutes of driving became quite loud.
I pulled off the cam cover but found nothing amiss. The valve clearances are loose but not too bad. The noise sounds like it is coming from the #1 cylinder or from inside the timing cover. And when I turn the engine over by hand I hear a "click" about once every half-revolution that sounds like something loose in the timing cover.
If I loosen the fan belt and just spin the fan I don't hear anything amiss (so it doesn't seem to be a water pump problem). The oil level is a little too full (maybe 1/2 qt) but it doesn't overheat and the oil pressure light doesn't come on.
Any suggestions? I'll take the timing cover off next and poke around but some idea of what might be going on would be nice first. Thanks.
--Chris Stevens
Re: Ticking noise from engine[120-130/1963] posted by George Downs on
Sunday, 10 January 1999, at 10:53 p.m.
It sounds like the sound of a timing gear
getting loose on its steel hub. (The main
part of the gear is a reinforced phenolic
resin, like synthane, micarta, bakelite, etc.)
You better get a timing gear or set ordered
pretty quick because it won't last too much
longer. Every Volvo I have owned has done
this, some more spectacularly than others.
You can get a set of steel timing gears for
somewhat more money and they will last
forever.
'Nother suggestion:
Check your oil BEFORE you put any in.
Most will use it down to about 1/4 to 1/2
quart low pretty quick and overfilling it
doesn't help. (It will use it that much
faster till it gets down to its favorite level.)
In other words, don't be compulsive about
filling it to the top. Just fill it to where it
normally runs unless it will be a long time
before you can check it again.
George Downs, Bartlesville, Oklahoma