scoobelan

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

Marx Mcrae

iTrader: (4)

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

Marx Mcrae

iTrader: (4)

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

scoobelan

but it drives fine.

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

SkullFudge

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 ??

scoobelan

yes - down shifting

scoobelan

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

kingmikeyuk

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

scoobelan

thx kingmikey, skullfudge and marx mcrae

could be clutch or flywheel related i guess

scoobelan

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

merlin24

iTrader: (1)

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

Mick

scoobelan

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)

dj219957

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

merlin24

iTrader: (1)

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

Mick

scoobelan

will check tomorrow, thx

arumdevil

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!

scoobelan

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