I just took my 93 WRX out for a fast drive to a mates, when started it up to return home there was ahorrible clunking....

Drove home anyway listening. very metallic clunking, not rev dependent. car drives fine.

first thought was the turbo (cooked bearings) but it clunks at idle ??????

any ideas?

or anyone know a subaru mechanic in NW London?

please help this car is costing me a fortune.

thx

 

Sounds like you've broken your crank shaft.
If it is the crank then it will have popped at least 1 piston too.
Hopefully im wrong though

 

Will need a replacement bottom end if so.
Could be a good excuse to go 2.5??

 

but it drives fine.

and whn you use the engine to slow down......no noise

 

When you say "use the engine to slow down" you mean down shifting right ??
or do you mean you are off power & coasting when slowing down ??

 

yes - down shifting

 

pretty certain its not the crank.

just started her up and she idles and revs fine but a distinct rattle.

sounds like its coming from under the intercooler. at idle its every couple of seconds. on rev it increases then continues for a second after coming off the gas (ie its not from the crank or cams)

praying now

 

The bell housing is underneath the ic so could be something broken or on its way out in the clutch / release assembly

 

thx kingmikey, skullfudge and marx mcrae

could be clutch or flywheel related i guess

 

disconnected igntion and spun the engine on starter - no noise. so i guess its not big ends or pistons.

driving noise speeds up when you come off the gas!??? like its waste turbo gasses?


please help

 

Is the noise still there when you dip the clutch - if it goes when clutch is down, possibly the gearbox.

Mick

 

thx merlin, no clutch make no difference.

to be clear it sounds like a stone ratlling around somewhere, it has now dissappeared at idle. Still there on gas and increases when off gas (moving)

 

could be a heat sheild. the one on my down pipemade a horrid grinding noise until i rammed a bolt into it!

 

As above - turbo heat shield loose or up-pipe heat shields corroded/broken weld.

Mick

 

will check tomorrow, thx

 

my heat sheild/s are loose and the sound could be described as a stone bouncing around a tin box. It is worst at idle or very low RPM and usually goes away above 1,500RPM or so. Sounds like that's hopefully what it is!

 

sadly its terminal, stripped it down a bit and its internal engine.

probably too expensive to be worth fixing.

unless anyone knows..............

thx for all yor help