[urq] Rod Knock?

[Jim Haseltine]

Loose front pulley/damper? Mind you, tend to hear that on overrun.

Regards,

Jim Haseltine

----- Original Message ----- 
From: "fdekat" <fdekat at sentex.net>
To: <urq at audifans.com>
Sent: Thursday, May 19, 2005 10:58 AM
Subject: [urq] Rod Knock?


>
> 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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