xr2i-carl

Going to turbo terry's sunday to replace a broken ring or piston (not sure yet)

any advice from experianced peeps. is it best to pull the piston out from the top or bottom?????

can someone please devise me a list of what tools will be required and roughly how long it will take to do???

is there any pointers i must watch out for?

thanks for any help in advance

carl

Alvyn

iTrader: (1)

pistons come out the top so head off at least

AJC

iTrader: (6)

remove sump and drop them

vroooom ptssssh

mind take the head off in reverse sequence.

abdr500

iTrader: (1)

you cant do it from the bottom m8 that would mean you would have to remove the crank and ect ect and the you would be fighting with the piston ring compresor to but it back in the bore head needs takeing off do it once m8

dojj

iTrader: (3)

depends on which engine, but most will have to come out of the top

ballin

iTrader: (1)

As said, definately need to come out and go back in the top

xr4x4rs

iTrader: (5)

if the bores damaged aswell you carnt just put another piston or ring on it as it will just be the same again

if theres any scoring on the bores, then the bore will either need to be honed or bored which is engine out job

but pistons come out from top anyhow

Butch.

iTrader: (1)

pistons come out of the top mate..

but by the sounds of it u have never done it before and dont know what your doing, give it to someone that knows what there doing or at least have someone there with you that has an idea whats going on.....

James

I've taken them out the bottom before, although not on a ford, but it'll be impossible i reckon to fit them in from the bottom so head will have to come off later anyways.

Anonymous

To fit pistons you put a ring commpressor round them and drop them in from the top with that flat on the mating face of the head.

Would have to be a VERY specifically designed for it engine (this one isnt) to manage that from the bottom.

xr2i-carl

mate ive given the car to people before and got ripped off for 3k only for the car to blow up on the way home from leaving there premises, previous experiances scare you, i dont trust anyone anymore

shame really

carl

xr2i-carl

how will i know if the bore is scored? its new engine with 6k on it!!!

James

sooooo why are you taking the pistons out?

Anonymous

I dont see how you are planning to "replace a ring" you do realise that means re-honing the bore, and it will then be sloppier than the other 3 etc?

xr4x4rs

iTrader: (5)

best advice is take it to a pro as you seem to not know what to do

you carnt just take pistons out and replace rings not that simple

and why is it having rings after 6k on a rebuild

who rebuilt it and why not go back to them of who done the work

Anonymous

Im really NOT being nasty here, but judging by the total lack of knowledge that you are demonstrating in your post, it seems HIGHLY unlikely you are going to do a good job of this.

If you really do want to have a go yourself though, get a haynes manual they are surprisingly good for this sort of thing and go into a lot more detail than its practical for us to do on a forum.

Kevin Sharp

iTrader: (3)

sorry but sounds like you dont have a clue...so if the engine isnt fucked already it will be after you,v been at it!

leave it alone and let someone who knows what they are doing look at it

xr2i-carl

well what do i do, i spent 3 FUCKIN GRAND with some idiots, which every time i left there premises the engine blew up, and they chraged to re-build it everytime!!!!

i read in pf and ff, people do a ring, or melt a piston and slip one in without problems... why should my case be any different

also regarding lack of knowledge, i aint numbnut i have got a sort of clue but surely you dont have to a atronout to re-buiild your first engine?

surely you all wernt totally clued up the first time you tried?


carl

xr4x4rs

iTrader: (5)

do you have proof that they built yopur engine

why didnt you report them to trading standards

sorry but if you keep going back to have a engine rebuilt 3 times and spent 3k with them for rebuilding when it should of been done for nothing is stupid mate

whats exactly wrong with the engine how do you know if its rings etc

also if its the ribgs gone and there is bad scoring on the bores you cannot just replave the rings you will need it honing to make teh bore smooth as if you put new rings in on a bore thats scored it will be very shortly lived and be back to square one

take it to a pro mate do it once and do it rite, at least if a pro does it you have a little bit of a gurantee

xr2i-carl

i dotn believe it is a ring i believe its either a cracked or damaged piston in some way,

3 cylinders the compression is perfect one is very down.


regarding thee people who built the engine, they are a well know recognised ford tuner, supposedly, i wouldnt reccomend them at all

Anonymous

Put some compressed air into that cylinder via the plug hole (remove plug first, LOL) with the valves all shut (TDC at end of compression stroke) and see where it comes out, you will then know whats wrong with it.

dojj

iTrader: (3)

sounds like you've been ripped off mate
how do you spend Ł3k each time and STILL go back to the same peole and STILL pay the money?
i'd be kncoking on the door and demanding a rebuild for free PLUS a motor in return while mine was off the road

(ok, sounds like a case od double standards with my situation, but it's not like that at all because i paid my money and await my car, but thats a whole other kettle of cold blooded omega3 rich marine animals)

diamond white

Like c-3dr says you really need to do a proper compression test to ascertain the problem. Its no good jumping to any old conclusion, like give us more info if you want help. Does the engine run, if so does the smoke, miss fire, is there sump compression, more than usual. At the end the the head will have to come off, but it might be only for a burnt out valve. you need to trouble shoot the problem first, it saves money.

turbo terry

I do agree if the bore is scored etc that the block will have to be re-honed, if it is the piston that is the problem surely if it is the correct size for the bore with correct ring gaps etc?It will be ok???

I don't have compressed air to do a leak down test etc. So i guess the head will come off as we have no other way of checking and it will need to come off to sort whatever it is anyways.

The piston and rod will come out the top and you will need to buy a piston ring compressor to re fit the one or the four what ever happens. Will borrow an inside micrometer for measuring the bores also.

Any help and constructive critisism please!

CT

turbo terry

Does it smoke on boost etc or what aswell?

Anonymous

If you use new rings then the block has to be honed, or they wont ever bed in

turbo terry

ok fair enough, i don't believe the well known tuner who rebuilt it previously didn't.

if they did after 6k would the honing marks still be there or any use?
can the bores be re-honed with out a re bore or that not how it works?

also the engine is running a de-comp plate, is there anylinks to measuring comp ratio? as it is a zvh running standard pistons, but is it poss to use the calibra turbo pistons in the 1800 zetec? and get a suitable comp ratio?

xr4x4rs

iTrader: (5)

when i had my cracked psiton it was becuase the fueling was lean

so how did you run he engine in, what boost etc, and did you have it set up properly


if its a cracked piston then th ebore will be damaged due to bits of the piston coming off and going up and down the bore so you will proberbly looking at a rebore, so new pistons im afraid to componsate for the larger bore

if the piston isnt cracked and the ring s just badly worn you can possibly get away with a honing

but

how does the car run etc, as it coud something like a bent valve

turbo terry

thanks for the info mate.

Not sure how it runs havn't seen it yet, will do later on and report back!

So really all four bores should be re bored and honed or get away with leaving the other 3?dont really want 1 over size to the others? If thats the problem. If i cant do a leakdown then surely head has to come off if compression is low?

The car was meant to be set up but all i saw them do was set the fuelling at idle then take it out and bring it back, then it blew up on the way home

Also need some 1800 zvh help if anyone can???Correct comp ratio etc?Pistons? Injectors?is currently on standard management and bieges'?

Thanks again!

GUZZLER

iTrader: (3)

could even be a valve problem

abdr500

iTrader: (1)

if your going to fit new piston rings you need to glaze bust the bores if a piston has cracked it doesnt all way fuck the bore up sounds like it could just be you head gasket blown or a burnt valve or a broken ring

digita1dragon

Is the top end quiet? If its making a lot of noise it could be sticking tappets.

Oranoco

Superb advise

And is it just me or do you have the worst luck ever with any tuner?

xr2i-carl

only ever had probs with one tuner !


it smokes on start up, and did smole under load, have driven it since not goin over 2.5k and it has not used a drop of oil'?????????


when i did the compression test, i stuck oil in said cylinder and it raised the compression considerably !!

thanks for everyones advice

hoep it all works out!

carl

Anonymous

how much oil did you add though?

put much in and you change the static CR!

xr2i-carl

explain chip im confused?

Anonymous

Take one perfectly sound set of rings.
Do a compression test
Pour a load of oil on top of the piston (say 10cc)
do compression test again
cause the oil doesnt compress, the readings go up

turbo terry

saw the car last night, and she doesnt smoke with no load and didnt see any when i followed it?

Surely if this was a piston or ring problem it would smoke all the time?

As Chip says how much oil did ya put in?

Need to find a compressor and do a leak down test i think? Whats the best way to fill the cylinder with air?drilled out spark plug?

There is also oil on the crossover pipe seeping from the rubber hose could be from one of the many times shes blown up!

Oranoco Why do you say that? Everyone has to start somewhere! And i thought thats why we all owned Fords partly because we enjoy working on them to keep them alive and also they are relatively easy to work on!?

xr2i-carl

i put on 200mililitres i think

quite a bit!!!

what is 10cc as in cubic capacity?

how can you measure that in oil chip mate?

turbo tezza lookin forward to it matey