4HP-18 Kickdown setting - Advice, please...

addo · Post by **addo** » 18 Apr 2011, 09:02

After running the "like an XM, but simpler

" up the road for inspection, I am convinced it's not kicking down properly. Seemed to downshift way too soon.

Can anyone offer pointers for setting this detail - is it a hard (inflexible) measurement?

Thanks, Adam.

Post by **CitroJim** » 18 Apr 2011, 10:03

Do you mean it's kicking down before the pedal hits the metal Adam?

In that case you'll ned to initially check the kickdown cable adjustment..

Normally it's the little cable that is attached to the throttle butterfly quadrant. Adjust so that kikdown occurs only on full throttle...

addo · Post by **addo** » 18 Apr 2011, 10:49

It's kicking down at very light pedal settings.

On the 4HP-18, is KD only determined by the cable, or is there internal pressure override?

Overall, it feels prehistoric, because it makes decisions based on absolutes! I realised within seconds how spoilt I am with the AL4, lurches and all.

EDIT: http://www.peugeot605.eu/letoltes/4hp18.pdf has some reasonably intelligent info. No wonder it feels ancient technology; it is!

mongoose100 · Post by **mongoose100** » 18 Apr 2011, 12:44

Adam,
If adjustment is similar to the HP14, then its nice and easy...

I set mine up by way of holding throttle open by hand and making sure the kickdown cable was at max level when throttle fully open... ie; full kickdown area

Deanxm · Post by **Deanxm** » 18 Apr 2011, 20:44

Adam

You will find a furrell on the kickdown cable, this is used to set up, with the throttle closed the furrell should be 2mm away from the end of the threaded cable outer, it has probably been adjusted to make it change down sooner and will not harm the box being where it is.
The box uses throttle position, boost pressure (if turbocharged) and road speed to govern change points, only the load sensor (kickdown) is adjustable.
If you are still unhappy after setting the kickdown let me know, im a bit of a gearbox sado

D

addo · Post by **addo** » 18 Apr 2011, 21:43

Mate, I'll be unhappy for sure.

The car was last owned by (ahem) someone who rolled their own and listened to reggae - yes, really - perhaps you can see where the implied lack of focused oversight or correct maintenance is coming from.

So, I am slowly mopping up the sundry misadventures of barely-trained monkeys with second rate tool kits. I know the motor's been in and out a few times (probably twice) and there is some stuff incorrectly routed.

Will report back later today.

BTW is a furrell a furry squirrel?

Deanxm · Post by **Deanxm** » 18 Apr 2011, 22:03

Sorry, meant ferrule.
If you find a squirrel clamped to the kickdown cable i think you will have also found your problem

Mate, I'll be unhappy for sure. Laughing

pessimist! cant own french cars with an attitude like that....................no wait, or is it owning french cars gives you an attitude like that?

D

addo · Post by **addo** » 19 Apr 2011, 10:43

Probably the latter.

Yesterday I walked up my driveway when it was (briefly) a car-free zone. It felt unusual and good at the same time.

The motor feels so flat and laggardly compared to my sewing-machine of a Xantia engine. The slow response of converter and sluggish shifts compounded things.

Oh, and did I mention the exhaust drone? NEVER split a PRV after the cat, into dual 3" pipes with hotdogs.

Post by **CitroJim** » 19 Apr 2011, 11:03

addo wrote:dual 3" pipes with hotdogs.

First of all on the subject of this car we have hamburgers and tomatos and now we have hotdogs...

You sure you're not driving a mobile fast-food joint Adam?

addo · Post by **addo** » 19 Apr 2011, 21:20

Are you casting aspersions on my girth?

Now the chips are down.

I have put the trans on notice; if it fails to win me over sooner than later, it gets swapped for a manual box.

Deanxm · Post by **Deanxm** » 19 Apr 2011, 21:37

poor little gearbox...............

D

addo · Post by **addo** » 20 Apr 2011, 09:25

Haha! Shall I post you the 4HP-18 from my flood-ruined 605? That one's burgered.

I should have the good car back from inspection late tomorrow, so can play with the KD cable then. Oh, and will inspect all around it carefully for squirrels.