406 HDi + engine noises | Technical matters | Back Room Forum

Mon 15 Nov 2004 12:59

406 HDi + engine noises - boatkake

Hi, my 406 hdi 2 litre has started to make an unusual noise.

it sounds as if the cam has gone ( like the old cortinas used to make )
it happened whilst driving to work today, so i have booked a couple of days off.

it definetly sounds like a top end noise,

how easy is it to work on these engines ?

can i take the cam cover off without disturbing the cylinder head?

i think it may be the hydralic valve lifters, how easy will it be to remove these?

thanks

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Mon 15 Nov 2004 21:22

406 hdi - boatkake

anybody removed the camshaft / folowers / belt on one of these?

any advice or tips

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Tue 16 Nov 2004 13:46

406 hdi - RichardW

Have a look at this thread:

www.honestjohn.co.uk/forum/post/index.htm?f=4&t=15...3

Then examine your crankshaft pulley. Top end problems on this engine virtually unknown, unless the the cambelt has jumped a tooth or two. Taking the rocker cover off should be easy enough to have a look, but my money is on the crank pulley.

--
RichardW

Is it illogical? It must be Citroen....

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Tue 16 Nov 2004 20:34

406 hdi - Ross Lavery

Hi, would agree this is probably the Crank pulley, change a lot of these, especially with higher milage

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Wed 17 Nov 2004 12:23

406 hdi - boatkake

Hi, the noise gets worse the hotter the engine gets, and its like a rthymic rattle/ knocking. To best describe it I would say that it reminds me of a pushrod motorbike engine that need the valves adjusting.

i will check the crankshaft pulley first, i know this sounds difficult but i dread having to remove the head / valves.

Is it true that I wont be able to get a reconditioned camshaft?

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