My 940 is a slapper

  • Thread starter Thread starter Trevor Colluney
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Trevor Colluney

Hi I have posted previously, I now can confirm that my old girl 112k is a
slapper the mechanic listened to her knock and the bed post almost
collapsed!, He said one of two things will happen. She will carry on with
her bad reputation and almost certain she will punch a hole thru her block.
He says the jobs just to expensive to do I only paid £850 for her last year.
Am I doomed to hear the knock (harsh on start up,quieter when she's had a
warm up) Is there no easy fix? I hate women with bad reputations
Terry
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Trevor Colluney said:
Hi I have posted previously, I now can confirm that my old girl 112k is a
slapper the mechanic listened to her knock and the bed post almost
collapsed!, He said one of two things will happen. She will carry on with
her bad reputation and almost certain she will punch a hole thru her
block.
He says the jobs just to expensive to do I only paid £850 for her last
year.
Am I doomed to hear the knock (harsh on start up,quieter when she's had a
warm up) Is there no easy fix? I hate women with bad reputations
Terry
Click to expand...
I'm curious about the quieting down after warm-up. Is the knock louder with
increased throttle? Also, did you run out of oil at some point?

Mike
 
Thanks Mike, yes the noise is quieter when warmed up,and when underpower
disappears. As I increase the throttle the power-on brings on the knock
annoying if it's only 10 thousandth of an inch. My son drove her for about
260 miles on low oil late November."bottom of the dip stick" as much my
fault for not checking.
Terry

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Trevor Colluney said:
Thanks Mike, yes the noise is quieter when warmed up,and when underpower
disappears. As I increase the throttle the power-on brings on the knock
annoying if it's only 10 thousandth of an inch. My son drove her for about
260 miles on low oil late November."bottom of the dip stick" as much my
fault for not checking.
Terry
Click to expand...
Just wanted to be sure... exhaust leaks are often mistaken for rod knock
(sometimes even by pros on an "off day.") It was the "quieter when warm"
that got my attention for that. But the great sensitivity to the throttle
(as opposed to being sensitive to going beyond, say, 1/4 throttle) and the
history of being run oil-starved puts us back in the "slapper" territory
again.

With gentle driving you could get years of boring service. Proper repair
probably means an overhaul, though, because the effects of oil starvation or
pretty widespread. You really should start picking out a replacement car
soon if you aren't that dedicated to the old girl. (My wife *hates* it when
I talk like that!)

Mike
 
Trevor Colluney said:
Hi I have posted previously, I now can confirm that my old girl 112k is a
slapper the mechanic listened to her knock and the bed post almost
collapsed!, He said one of two things will happen. She will carry on with
her bad reputation and almost certain she will punch a hole thru her block.
He says the jobs just to expensive to do I only paid £850 for her last year.
Am I doomed to hear the knock (harsh on start up,quieter when she's had a
warm up) Is there no easy fix? I hate women with bad reputations
Terry
Click to expand...


Jeez, that's bizarre for it to be acting up like that, seriously, 112K is
*nothing*, that motor should easily be good for 300K.
 
Jeez, that's bizarre for it to be acting up like that, seriously, 112K is
*nothing*, that motor should easily be good for 300K.
Click to expand...

I agree. Have a look at the exhaust manifold gaskets. I had the same
problem once and turned out to be the gaskets. You could also do the
compression test.



Regards,

Boris Mohar

Got Knock? - see:
Viatrack Printed Circuit Designs (among other things) http://www.viatrack.ca
 
Boris Mohar said:
I agree. Have a look at the exhaust manifold gaskets. I had the same
problem once and turned out to be the gaskets. You could also do the
compression test.
Click to expand...


He mentioned later it was run very low on oil, if it was in fact starved,
that'll kill any engine in short order.
 
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