Interesting gasket and oddball cog.

[onthecut]

Decided I really ought to treat the stand-in Xant to a cam belt as it doesn't seem to have had one, ever -- and is now on 111k. Among the bits to round up was a water pump gasket. Have a new pump from some previous 1.9, but lost the gasket, so SWMBO collected one from main agent. Unlike the paper jobbie that typically comes with an aftermarket pump, this one is a much different affair -- seems to be a coated tin construction -- almost like a Teflon finish. Not seen this particular finish before -- anyone else ?

Meanwhile No.2 son tackled his 307 belt the other day, whereupon getting down to the crank sprocket there was an exclamation your granny wouldn't have approved of. Reason ? About a tooth's worth of play on the cog - Woodroffe key slot greatly enlarged. Troll down to local main agent only to be told they are all like that, it's the design ! Only theory I can see is it's a cheap way of avoiding a proper Vernier sprocket somewhere. According to the agent, the big crank pulley clamps it all up once everything is set. Doesn't seem right to me to have a key in a much wider slot.

Oh well, see if I can get the Xant done without disaster tomorrow.

Mike.

[Dieselman]

It's not right. The timing belt pulley has to be fitted tight in the correct position, otherwise the valve and fuel timing will be out.
It probably has the wrong woodruf key, or possibly the wrong pulley, or has been loose so enlarged the keyway, but that's normally just the auxillary drive pulley, not the timing belt one.

[onthecut]

It's not right. The timing belt pulley has to be fitted tight in the correct position, otherwise the valve and fuel timing will be out.
It probably has the wrong woodruf key, or possibly the wrong pulley, or has been loose so enlarged the keyway, but that's normally just the auxillary drive pulley, not the timing belt one.

All the things I thought and said to the guy at Peugeot -- who duly went off to the workshop and cam back adamant that it was indeed as it should be. Will have to wait and see if anyone else has seen this on a 307 hdi. To be fair it is running fine and doesn't appear to have been chattering on the shaft.

Mike.

[Dieselman]

Ah, sorry, I didn't realise it was an HDi. That means fuel timing will be unaffected and possibly the outer pulley is used to align the inner one.