Newbie 2.4JTDm Timing Belt & Shocks Query - Alfa Romeo Forum
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(Post Link) post #1 of 9 Old 15-12-07 Thread Starter
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Newbie 2.4JTDm Timing Belt & Shocks Query

Hello all
Just joined to great Alfisti by buying a 53 plate 156 2.4 JTDm with 34k on the clock. A nice facelift Sportwagon in Alfa red. I'm chuffed to nuts with it as I've coveted an Alfa for some time and got the chance when a nice articulated lorry decided to try and climb into the boot of my Skoda Octy vRS and helpfully wrote it off. Bought the car from Black & White Garage who were excellent. I've never been a fan of oil burners but was blown away by the engine on the test drive. Probably the easiest sale B&W have ever had!

The service history seemed to indicate a belt change at Monza Sport who did the 3yr / 36k service back in Feb of this year. However, scrutiny of the papers seems to indicate that it was a belt inspection (I'll be calling them to double check) rather than a change. I know that the Diesel engine belt interval is still 72k (unlike the petrol interval) but there seem to be a few horror stories on here of belt failures well before 72k. I'm inclined to get it changed pretty soon as I'll be doing a 500mile per week commute from January. What do people think?

Also, Monza fitted "HBE Shocks" which are described as "Monza revalved BILS". A good old t'internet search indicates that these are probably Harvey Bailey Bilstein shocks which seem to be highly regarded in Alfa circles. The ride is certainly very nice. Can anyone tell be what 're-valved' means and whether there is anything worth knowing with these shocks?

Thanks in advance for your help
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(Post Link) post #2 of 9 Old 18-12-07 Thread Starter
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Re: Newbie 2.4JTDm Timing Belt & Shocks Query

Hmm, nice to be popular then!

Spoke with a number of Alfa specialists who tell me that the Alfa schedule still recommends 72k for JTDm belts. One told me that 48k is a safer bet and another two said 60k or 5 yrs, whichever is sooner.

I'll say hello over on the introduce myself forum next, I might get someone at least say hello!
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Re: Newbie 2.4JTDm Timing Belt & Shocks Query

when you change the belt is up to the individual, but its always a balancing act of risk vs cost. i think most people would agree that waiting till 72k is taking a bigger risk than its worth, but then again i bet the majority of owners who are not affected by forum paranoia leave it beyond that mileage and in only a very small number of cases is it ever a problem.

personally i believe regular inspection is the best method, it ensures you dont change earlier than you need to so you save money, but also dont leave it too late and risk the expense of a repair.

"revalved" shock absorbers have had the valve replaced, usually with an uprated valve (often a larger number of smaller holes). this is usually done if aftermarket uprated shocks are not available with the charactersitics you require.
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Re: Newbie 2.4JTDm Timing Belt & Shocks Query

Hulloooo and welcome Oakwood. Bit quiet here at the moment.

best to nip into the member's area and introduce yourself first.

This is a great site so hang around.
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Re: Newbie 2.4JTDm Timing Belt & Shocks Query

Monza Sport also reprogram Alfas (I had my 2.0TS done there years ago) so you may want to ask them if they did anything else to the car
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Re: Newbie 2.4JTDm Timing Belt & Shocks Query

Thanks for the replies.
Car was on the RR yesterday and was defo mapped as it put out 203bhp, so I reckon Monza did play with her a little bit. But then I did yesterday too!
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Re: Newbie 2.4JTDm Timing Belt & Shocks Query

Change the belt before 72k OW (if it hasn't already been done that is !!)

Having a looky here

There's talk here of some 'belt failures' actually being caused by the water pump seizing !!
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Re: Newbie 2.4JTDm Timing Belt & Shocks Query

hello and welcome
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Re: Newbie 2.4JTDm Timing Belt & Shocks Query

Quote:
Originally Posted by nomad View Post
There's talk here of some 'belt failures' actually being caused by the water pump seizing !!
Can you find an example of it happening in the 2.4 though? I've only read it happening to 1.9's, although the 20V and 16V JTDs do share the same waterpump, as do the 10V and 8V (no water pump problems there)

If it was upto me, I'd be happy with it covering 72K miles, but not 5 years. 3 winters tops, cause the freezing/warming process must do a lot of damage to the structure of the belts..
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