Corsa C timing chain

How big a job is it to fit a new timing chain on the Corsa C. Where is the
best place to get the special timing tools?

Thanks for any help.

 

This is a big job and not for the faint hearted. How happy are you with
your car fixing skills?
Most tool suppliers will have the lock up kit - Halfords etc.

 

Lots of kits on eBay - £36 plus p&p

 

Hi

Is it an engine in situ job & just requires removal of rocker cover, timing
cover & sump?

Are the ttools needed because the cam sprockets are not keyed onto the cams
but taper fit?

Thanks in anticipation.

 

The tools lock the crank, both cams and camshaft sensor ring. It is done
with the engine in situ. 1.0 is easier cos you have more room but the job is
the same on both 1.0 and 1.2 engines.

 

Thanks for your reply.

Most timing chain engines that I remember relied on timing marks and not
tools. Does this mean the sprocket are not keyed onto the cams but are a
taper fit so they are infinately variable, thus requring tools to lock into
place? (Escort diesels used to do this with their camshafts, all be it on a
belt drive engine)

Thanks again.

 

That's right - no key way.
When Vauxhall found out they had a bad batch of timing chains going around a
couple of years back they bought out a great tool to change them.
You just split the old chain link, fastened the new one one to it - undid
the cam pulleys so they could spin freely and then turned the crank to wind
the new chain on while pulling the old one off. when you got to the end the
tool turned into a link spreader so you could join the 2 ends of the new
chain together. Hope that makes sense !!!
Only needed a cam cover gasket.
Of course this is no good if your tensioner or guides have worn cos the
chain has been slapping about.

 

I will obviously need a chain kit. rocker gasket, timing cover gasket, sump
gasket & crankshaft oil seal. Is ther any other items I need?

 

Water pump gasket,thermostat housing gasket anti freeze and it is best to
change the oil and filter while you are doing it - you have the oil out
anyway.