re. [urq] Rod Knock?

[Joshua van Tol]

Sounds to me like classic rod knock. Draining some oil and looking  
for metallic particles should tell the tale.


>
> Looks like one less urq at Carlisle..!
>
> So here I am last night, zipping down the highway on the way to my  
> friend's
> shop, to replace a broken subframe bolt. (That broke, when I was  
> checking
> the
> tightness of the subframe bolts, trying to find the 'creaking  
> noise' that I
> heard occasionally).
>
> I hear a funny noise, so I back off. Stand on it again, noise comes  
> back.
> Ohoh! Not good!  Pull over, and pop the hood. Sounds OK idling, but  
> maybe a
> bit more 'lumpy' than normal. Give the throttle a quick crack, and  
> a nasty
> noise!
>
> Sounds like the man with hammers is beatinig on the pistons. Very  
> 'sharp'
> metallic sound, similar to the 'pinging' sound you get when running  
> WAY too
> much advance.  Except this is happening just by giving the throttle  
> a good
> crack..
>
> Drove it home very carefully. Noise would only happen under load,  
> and seemed
> to 'kind of, sort of' miss at the same time. Wouldn't take much  
> load to get
> this to happen.
>
> However, at light load and more rev's, no noise.
>
> I'm at a bit of a loss to figure this one out.
> I'm thinking if it's a rod end, I'd be LESS likely to hear the  
> noise under
> load, and more likely to hear it as the motor is on overun. BUt then,
> anything is possible, right?
>
> I'm also wondering about the possiblilty that the ECU has gone  
> wonky, and it
> IS a case of massive advance?
>
> When I get home tonight, I'll be checking with the timing light,  
> and maybe
> the 'pull one plug at a time' teast, to see if it's one cylnder  
> doing this
> (Which is what it sounds like).
>
> Or maybe it's something stupid, like the flywheel coming loose?  
> Anyone ever
> have that happen? From the general condition of the urq when I got  
> it, I'd
> beleive ANYTHING is possible..!
>
> So, If you have any ideas let me know. IF it's not an easy fix,  
> it's the
> 4000q to Carlisle. Not as much fun, but way more reliable!
>
> Rgards,
>
> =Frank de Kat=]
>
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