COLEYST200

iTrader: (3)

I'm getting my focos ready for the road but one thing that's got me puzzled is the car is only making 9psi boost we have swooped a lot of stuff over to try and sort this problem we did find a very big air leak on a pipe fitting we found this by pulling the air serply hose of the turbo and the car kept running so that was sorted it now kills the motor when I put my hand over the turbo so I'm happy that there are no leaks . I must say I don't no much about the turbo it's a T34 with a .48 rear no smoke no play but 9psi ??
Any forts

BIL N KEL

Check the Amal valve clicks when you turn the ignition on. Sounds like its not bleeding any air off

COLEYST200

iTrader: (3)

That's one thing I didnot check we did swop the valve over with a second one we have but it was still the same

cossie4i+

iTrader: (15)

It is either the amal valve or the wiring to it I would say,

Steve

Glenn_

iTrader: (1)

Are the vacumn pipes from the amal valve not kinked.

martysmartie

iTrader: (1)

But there may be a problem with the power supply, as said you need to verify if it 'clicks' when the ignition is switched on?

Martin

whizzisat114

iTrader: (2)

Connection 16 in the ecu plug goes to amal (continuity test)
Other is ign live

COLEYST200

iTrader: (3)

Thanks lads I will check this info in a bit

bigchez

gotta love pf for this kinda thing - great info

COLEYST200

iTrader: (3)

Right I'v had a look at the car the Amal valve was fxxk so a working one has been fitted but its still struggling to make 9psi I'm thinking its the turbo my self :-(

cossie891

iTrader: (1)

Check the penny is sealing in the housing

James @ M Developments.

iTrader: (2)

If its low on boost, check the actuator is correctly pre loaded and functioning, ideally pressure test the actuator and see what pressure the gate starts to open, this will give you a good idea of spring tension.

Check the Amal is functioning, correctly plumbed and correctly jetted,
Check the amal has a 12v and a control feed to the ecu

After that being very carefull and measuring fuelling while doing so, pull the actuator pipe off and bring it on boost, this should keep the wastegate closed, BE AWARE THIS SHOULD MAKE FAR TO MUCH BOOST. So do not hold it open or engine damage mar occur, just squeeze it onto boost and see if the turbo itself can make more boost than you have.

If the boost is still low with the pipe off, the turbo is faulty or you have a massive air leak.
If the boost is high, its simply a control issue, so go back through the first part.

COLEYST200

iTrader: (3)

Thanks James it's pipe up right and when I flick the key for a split second it gets 12v I have tryed the car with a second actuator on off a car that makes 28psi I'v all so tryed it with the pipe off still the same . I'm 99% shower I'v not got a air leak as I'v put a damp rag over the air intake on the turbo and the motor come to a stop very quick and then it was holding a vac on my hand so to me and wot your saying its turbo off time never mind . Thanks for you're help

Paul_RS

iTrader: (4)

Buggered actuator?

James @ M Developments.

iTrader: (2)

Doing. a vacuum test isn't really as good as a pressure test though as it can seal some leaks

COLEYST200

iTrader: (3)

You could be right there James as I'v got a T34 on my 3dr I'm going pull the turbo off and try the 3dr turbo and see wot happens then this way it's not costing me any thing just time

robbo9006

Would simple undoing the amal valve wiring keep the turbo off boost.
whats the best way to keep the car of boost.?

COLEYST200

iTrader: (3)

Right it's sorted a big thanks to Andym and Rex for there help tonight Andym come round as he was the lad I had the turbo off and has had a lot of problems very simler in the past and as some said it could be a air leak well it was all the clips were tight well that's wot we fort one was in the rong place by about 10mm moved it and the car now has 25psi + no so I'm over the moon all most sorted for the MOT on Satday morning . So a Big thanks to Andym and Rex for tonight's help

andym

iTrader: (1)

Its was good to see you both, car is awesome its a real credit to you and the rest of the guys that have helped out.
I expect to see you round at mine after the mot on Sat!!