The problem actually first happened several months ago...driving on the
interstate a loud horrible knocking sound and loss of power. People on
the street were staring as I pulled off.
Towed it home and parked it until Tuesday night when I decided to start
it up again to see what was happening. The rebuild was relatively
recent, finished about a year ago, but done over a few years and by
several people in several locations--not good conditions for a rebuild.
New oil pump, and oil pressure seems okay. I may drop the oil pan,
remove the valve cover, and take a look. I'm not pressed to get it
fixed (focusing my efforts on my main project), just starting to take a
look to see what I'll be up against. I'm pretty sure nothing in the top
of the engine can make a knock/vibration like this, although I was
hoping for just a bent pushrod or bad spark plug, or cat in the fan
belt, or maybe for it to just go away. heh heh...
Adrian
-----Original Message-----
From Kansa, Robert [mailto:KansaR at diebold.com]
Sent: Thursday, August 23, 2001 10:10 AM
To: Adrian Barnes; Spridgets (E-mail)
Subject: RE: knock knock
who's there?
The problem is when this sound suddenly stops..
its not easy to repair holes in engine blocks.
best advised you check this out immediatly. because the cost of repair
may exponentially follow the cost of procrastination. the cost may
initially be no more than a set of bearings, if you catch the problem
now.
Rod is a fair guess, but first..hows your oil psi?
how many hours/miles on the engine?
oil pump in good order?
could be a little piston slap..loose wrist pin.
can even be something like a loose rod cap.
is it more of a "detonation" knock?
is it comming from the bottom or top?
could it be a loose rocker? bent pushrod? (these are more "clicky than
knocky)
an angry gnome?
R(wnik)Kansa/RCCSA
A quiet knocking sound when the engine is cool that turns into a loud
knocking sound when the engine is hot (thinner oil) is probably a rod,
or otherwise not cheap, right?
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