y does my escort turb keep melting the 4th piston

 

probably because you have something wrong?!

 

you think

 

its a bit of a stab in the dark but yea i'd say so

 

LOL

 

my new lump did 60 miles then started smokin its ass of just runnin it in

 

lean maybe

 

got tobe lean on number 4!

 

More likely a lubrication problem, or air pocket and hot spot around no 4 cyclinder.
tabetha

 

Ok being serious now.....whats the story with the car?

Are you trying to home DIY tune it for instance?

 

not really trying to do any thing it all started off with me racing a rx. i was going for it but the escort had a different idea & and went boom at about 120 mph since then it keeps melting pistons even though its a completely different engine its getting costly cant take it to a tuner cuz it doesnt last long enough HELP

 

have you had the injector that fuels number 4 checked to make sure it's working correctly?

 

swap injector 4 for 1 and see if it melts number 1 on your next engine sorry not funny

 

compare 4th injector with others

it can give less fuel and even when AFR (average) is good it can be too lean on 4th cylinder

 

i got a new set of injectors so i will change them, i have also been told it was [pinkin] wotever that means

 

pinkin - detonations
can be result of failed injector

 

There has to be something wrong with your fuel system then

injector/injector pipe/metering head, clearly under fuelling on cylinder number 4

 

But you have carried on without having it set up properly?

 

like i said i was trying to run it in it was a fresh lunp new internals the lot

 

i just had a quick look at the fourth injector the seal is fucked and the clamp that holds the injector in place is bent upwards so the injector moves in & out between 5-10mm could that be the prob?

 

yes

Ive got a set of injector seals and collets if you want to buy some, the collets alone are in excess of £3.50 +VAT from Ford

Clamps are NLA but you can buy stainless ones from auto specialists

 

no sorry mate i already got some they came in a mates head set so i robbed em hehehehe

 

fair enough, you'll have a job tracking down those clamps though........i've got a set i bought new and used but are still like new, think im going to hoard them for now on a "what if" basis

 

are they the same as 3i ones if so i got about 4 off them & a new set of injectors i bought a couple of years ago still got them i think

 

ooooo someones having a lucky day today then aren't they

 

so theyre the same then BONUS

 

check your voltage at the pump as old wiring can cause LOW volts at pump = less fuel=lean= melted piston=£££££'s or as above injector fault,have the fuel pressure checked by a pro before u large it again

 

i love that cortina

 

exactly what i was going to say worth getting the injectors
bench tested.