Exhaust Nut Size

[tonyhaz]

Hi

What size sockets do I need to replace middle exhaust section, manifold end, and what's easy way of getting to them

Xsara pucasso 1.6 petrol reg 2000

Thanks

[tonyhaz]

Bump

[Johndouglas]

Before you start you should get yourself some new clamps from ebay. There are lots listed for your vehicle at around a fiver each. Usually they have an 8mm bolt and you'll probably need a 13mm socket for the nut. If you have new ones to hand you can remove the old ones with an angle grinder. You'll need the vehicle fairly high off the ground on ramps are axle stands. Either way- make sure it's well supported before venturing underneath.

[tonyhaz]

Thanks for that, will be on a ramp, so is the nut and bolts on the manifold end 8mm ? Need to know for sure as I got to go buy a set of long reach sockets

[paul.h]

I do not think there will be any 8mm AF (across flats) bolts/nuts on the exhaust or manifold, this size is similar to brake bleed screws and would not be strong enough. Can you reach the ones already in place with an open ended or ring spanner to get the size ?

 

Looking at the parts diagrams for the TU5JP4 1.6 16v 110 hp engine and for the 1.6 100 hp engine (but not the 1.6 90 hp engine), they show the exhaust middle section is held at its front end by spring loaded bolts with lock nuts and at the back box end by a clamp. If your car still has the original Citroen exhaust (or a Citroen replacement), then from experience of replacing the exhaust on a 2003 C3 with the same spring loaded bolts, I would get a new set of bolts/nuts from Citroen. The nuts are tight to remove and over the years can suffer from the heat. I used a replacement from Eurocarparts and they supplied the sealing ring and the bolts but the bolts were wrong (at the time I re-used the old ones) and the sealing ring did not last. The kit of parts - bolts/nuts/washers/springs/sealing ring is part no. 179774 and is the same as used on the C3 1.4 petrol 8v engine - the heads of the bolts are 13mm AF and the nuts are 10 mm AF. So it looks as if you will only need a long socket for the 10 mm nuts, get a 6 point one since it is less likely to round off the nut corners. The socket length up to the ratchet needs to be at least 15 mm.