timing belt snapped

twincamman

my belt snapped in my van its a 99 renault megane van 1.9 diseal,belt snapped the other day ,it was ticking over when it snapped so does anyone reckon it will be ok,probley bent a valve

Anan1

No way to tell without having a look inside, i'm afraid.

twincamman

ya i suppose,i mite put a new belt on and see what happens,

Anan1

If you can do it yourself then fire away. Good luck!

twincamman

cheers

Darragh29

I reckon your valves are bent to be honest.

twincamman

hopefully not sure ill give it a try anyway

bushy...

You could use a leakdown tester if you want to avoid possibly causing more damage to it.

Basically it just injects compressed air down through an injector/glow plug hole ( with piston at TDC) , the gauge on it will show what % leakage you have and you can hear the air leaking out the exhaust/inlet. Requires a small bit of care.

You can make and use a simple version if you are careful. You need a source of (dry) compressed air , a small regulator, a needle valve to control the airflow and an old glowplug from a scrapyard.

Remove the centre from the glowplug and clean it up so bits won't end up in your engine.

Braze on a small piece of pipe so you can attach a hose to it. Connect it to the needle valve and regulator.

Remove the air feed pipe from the intake manifold.

Since the belt is broken anyway , lift the cam up. Get the first piston to TDC and lock the crank , remove the glowplug , thread in your new toy and feed in some air ( you don't need much pressure )

You will hear air leaking from the intake or exhaust if there is a valve bent.

You need to be careful , if its not dead on TDC and locked , it will swing over with a small bit of force ( hence why i suggested lifting the cam )


hth