December 2002

Question ZX TD tuning
Dave Citroen

I have a Citroen ZX TD Volcane (1996, 51K) and would like to optimise its performance, especially to reduce turbo lag -- there is very liitle oomph below about 2000rpm. Does anyone have any experience of tuning these engines (eg by optimising the pump settings)? I've read somewhere that you can increase the turbo boost too, but then again I don't want to drastically shorten the life of the car as I'd like to keep it for a while yet.

I'd be grateful for any recommendations of outfits to do the work, and information on what they did, what it cost and whether it was worth it! I presume there is no need to tell the insurers if there will be no material change to the engine.....

Thanks in advance for any help. Read more

Dizzy {P}

Spot on, Middleman, as always!

The current craze for hotting up is nothing new. In the 60s it entailed sticking 'exhaust ejectors' on the end of the tailpipe to pull out the gases. These would work -- but only at greater than 200 mph.

We then had 'hot camshafts'. These typically gave a little more bhp over a very small rev-band at the top end and ruined the torque over the lower/mid speed range.

We now have 'chipping' or fiddling with injection pumps and turbos, which are bound to threaten engine reliability and longevity.

Dave, I would leave well alone and look towards buying a faster car as MM suggests.

MB

where the pollen filter is on my Avensis 1.8?
I've looked in the handbook but nothing...

thanks

MB Read more

james_60

hi

best bet is to buy a haynes workshop manuel for the car it pays for itself when you dont have to ring up for info at the garage

James Stephenson

Question Merc Diesel
Marcos{P}

I have just picked up a new Mercedes E320 CDI and am extremely pleased with it apart from one small problem.
When the engine has warmed and you have the window down you can hear a ticking noise when pulling away that sounds like a manifold leak.
I pointed this out to the local dealer and after 3 hours of listening they have decided that the noise is the No.1 cylinder firing and can be heard because the cylinder wall at the front of the block is thinner than the rest to make room for the timing chain and other ancillaries.
I was a little shocked that Mercedes would produce an engine that would have this problem so whilst in Stuttgart yesterday picking up my Dads new E320 CDI I asked them the question.
They laughed and said it sounds like a manifold or injector problem and that the dealer should be able to sort this fairly easily.
My dealer is now saying that the engineers in Stuttgart have told them that all E320 CDIs have this problem with the cylinder wall. The one problem here is the fact that my dads car is identical and makes no ticking noise whatsoever.

I need help. What action should I take next ?
Read more

drbe

I have a 320 CDI (auto) and have no such problem, the engine is a little noisier when cold and at lower speeds, but otherwise no disconcerting noises. It is 2001 vintage. I should go to the dealer, find a different salesman and ask for a test drive in a diesel and see if there is any difference. Let us know how you get on.
regards drbe Don

No Do$h

HJ has steered me firmly away from the V40TD and made some alternative suggestions, including the Focus, Civic and 323. My head does the sums and agrees that these are all worthy suggestions. I have to admit the FocusTDcI will give the 45+mpg I'm seeking, is a fairly handsome car and will be given due consideration. Not sure about that 323 though.....

At this point my heart takes a firm grip of my head and draws me back into Autotrader, pointing out a 156JTD Veloce Sportwagon (19k on an X with leather and all the trimmings) which I can get for £10k from an Alfa dealer if I apply enough pressure in the right places.

I know Alfa haven't had the best reputation, but I've also heard that the JTD ain't a bad lump and this car is dripping with equipment.

Should I be sectioned? Am I doomed to buy this car and live with it's "features" (aka breakdowns) whilst admiring its gorgeous lines? Should HJ take a large plank of wood and batter me until I accept the futility of this line of thinking and buy a Mundano or a Forgettable Focus? Will I be barred from further discussions?

The answers lie with you... cos I can't make my mind up!

No Dosh (because form beats function every time)

Read more

Hugo {P}

As an aside, I can't help chuckling at the lengthy threads
slating VW build quality.


Never has a slating been so justified in my opinion!

All the best with the Alfa.

Hugo
LHM

In a similar vein to Mark(RLBS)'s thread on 'mollycoddling' cars, does anyone know if continually driving in a restrained manner can actually damage your car's engine?

I vaguely remember reading somewhere that failure to 'exercise' the engine into the upper rev range can cause problems. Can this really be true, or is it stretching the 'human fitness' analogy too far?

Most of my driving is conducted below 3000 rpm, so I'd appreciate your thoughts!! Read more

PatriciaX

Im the same, Chris TD, I'd never had a deisel before the big purple one and I've realised how niaive I was, it makes me worry how much I STILL do not know.

I didn't realise for the first week, until I read it on here, that you have to wait a few seconds for the sparky-things to heat up before you turn it over. I just thought deisels took longer to click on. Mind you, Im a strict heater-uper now!

I had been following the "under 3,000 revs" rule that I read on here and thought that was the best thing. I'll do some motorway driving in 4th tonight then when I go home to get the cobwebs out. That will be fun!!!!

Patricia
x

Brill {P}

I. There are approximately two billion children (persons under 18) in the world. However, since Santa does not visit children of Muslim, Hindu, Jewish or Buddhist religions, this reduces the workload for Christmas night to 15% of the total, or 378 million (according to the Population Reference Bureau). At an average (census) rate of 3.5 children per household, that comes to 108 million homes, presuming that there is at least one good child in each.

II. Santa has about 31 hours of Christmas to work with, thanks to the different time zones and the rotation of the earth, assuming he travels east to west (which seems logical). This works out to 967.7 visits per second. This is to say that for each Christian household with a good child, Santa has around 1/1000th of a second to park the sleigh, hop out, jump down the chimney, fill the stockings, distribute the remaining presents under the tree, eat whatever crappy snacks have been left for him, get back up the chimney, jump into the sleigh and get on to the next house. Assuming that each of these 108 million stops is evenly distributed around the earth (which, of course, we know to be false, but will accept for the purposes of our calculations), we are now talking about 0.78 miles per household; a total trip of 75.5 million miles, not counting bathroom stops or breaks. This means Santa's sleigh is moving at 650 miles per second --- 3,000 times the speed of sound. For purposes of comparison, the fastest man-made vehicle, the Ulysses space probe, moves at a poky 27.4 miles per second, and a conventional reindeer can run (at best) 15 miles per hour.

III. The payload of the sleigh adds another interesting element. Assuming that each child gets nothing more than a medium sized Lego set (two pounds), the sleigh is carrying over 500 thousand tons, not counting Santa himself. On land, a conventional reindeer can pull no more than 300 pounds. Even granting that the "flying" reindeer could pull ten times the normal amount, the job can't be done with eight or even nine of them --- Santa would need 360,000 of them. This increases the payload, not counting the weight of the sleigh, another 54,000 tons, or roughly seven times the weight of the Queen Elizabeth (the ship, not the monarch).

IV. 600,000 tons traveling at 650 miles per second creates enormous air resistance --- this would heat up the reindeer in the same fashion as a spacecraft re-entering the earth's atmosphere. The lead pair of reindeer would absorb 14.3 quintillion joules of energy per second each. In short, they would burst into flames almost instantaneously, exposing the reindeer behind them and creating deafening sonic booms in their wake. The entire reindeer team would be vaporized within 4.26 thousandths of a second, or right about the time Santa reached the fifth house on his trip. Not that it matters, however, since Santa, as a result of accelerating from a dead stop to 650 m.p.s. in .001 seconds, would be subjected to centrifugal forces of 17,500 G's. A 250 pound Santa (which seems ludicrously slim) would be pinned to the back of the sleigh by 4,315,015 pounds of force, instantly crushing his bones and organs and reducing him to a quivering blob of pink goo.

V. Maybe Santa needs a BMW? Read more

Ian Cook

Brill - why do you assume Santa only delivers to children? What about me?

BTW, he obviously needs a turbocharged white van!


Ian Cook

Wally Zebon

I saw some poor begger getting a ticket the other day in Carlisle city centre. The traffic warden took the details, wrote out the ticket and then took a photo of the car with the ticket attached.
Is this simply to act as proof that the ticket was issued or is there another reason? Read more

Bromptonaut

Carlisle has de criminalised parking enforcement so it was probably an attendant employed by or contracted to the council rather than a warden.
See www.parking-appeals.gov.uk/about/faq.asp and go to q10. Proof that the ticket was issued and attached to the car.

MR_PLUM

Hello all,
I have a 94 astra diesel turbo.
It is refusing to fire now the weather has become cold.
I know its not my battery as I took her in one night gave her a good charge and put it back on in the morning and my car still refused to fire up.
If I disconnect the feed of the glow plug rail and attach a 12-24v test screwdriver this should tell me if its getting feed and if the relays ok??
what feed should they be recieveing? 6v? 12v?
what else could I try as its done this for the last four days now but fires up once I have charged my battery again in the afternoon.

cheers all Read more

MR_PLUM

well I tested mine with multimeter today and one was shot. I purchased a cheap one until I can afford the set and she started first go and Im extremely happy as she hadnt been started for days!!!

Thanks all for your help ..

John H

I have just bought a LandRover Discovery 3.5Ltr V8, petrol. It does about 12 miles per gallon!!!!!!!!!!!!! I am seriously looking into getting it converted now that the local Shell garage sells it.

Has anyone converted their car or do you know someone who has?

Did you look into it and decide against it, if so why?

I know it will cost around £1,500 but I should recoup that fairly quickly (a year to 18 months).

The car is NOT eligible for the 80% government grant sadly. Read more

DavidHM

Simple answer is that the benefit to you is going to be marginal. If you have any debt or have to get into debt to pay it, don't do it - reduce your interest payments instead.

If the tax regime changes, or if your car is written off, you're not even going to make that saving.

I personally wouldn't bother on anything other than a real gas guzzler, and while the Tavia 1.4 might be many things (slow and basic, for instance) it's not particularly thirsty.

laps

We have just bought a Fiesta 1.1 J Reg. We have had it 3 weeks. When we bought it we where not told it had a car alarm. We have been using it all this time without problems BUT this morning the car alarm (which we didnt know we had is sounding!). Does anyone know if there is a way of swiching it off. There is no keyfob button. Would there be a switch somewhere?? HELP!!! Read more

Dynamic Dave

Have you recently disconnected/flattened the car battery? Most, if not all alarms auto arm themselves upon reconnection of the battery. Your later post suggests its a Piranha alarm. Unless they've changed the design, it should have come with a remote keyfob.
Do you have any other keys on the key ring that you have no idea what they fit? If so, this could be the key to turn off the alarm when you want to do maintenance on the car. Find the blackbox under the bonnet and look for a keyhole.