Board logo

CVH engine - how to change ancilaries?
xico_ze54 - 15/5/13 at 10:15 PM

hi

I got a 1990 Ford Sierra Estate 1.6 with a CVH engine and intend to change those complicated ancilaries to a more conventional/ancient stuff.

is it possible - without spend much money - remove the ancilaries, say, carburetor, intake manifold, exhaust manifold with those strange piping, electronics, miles of tubes and strange boxes, and so on... to a more conventional mechanic? like those of a decade before?

resuming: keep the main motor body, put an used simple manual/automatic carburetor (no need to be very performant), put a hand made exhaust manyfold, etc. does this will work? is it possible removing that mess of tubes and complicated mechanic and electronics without spending lots of money?

I appreciated if anyone who has some experience with that motor could tell me something usefull.

thank you very much
Amadeu


snapper - 16/5/13 at 06:16 AM

That is exactly what most of us do
You can fit a simple manual weber carb and manifold from an early Fiesta XR2 or Escort XR3
Most kit cars need an exhaust manifold made to fit but you could just modify the down pipe from Fiesta XR2 or Escort XR3


xico_ze54 - 16/5/13 at 09:12 AM

quote:
Originally posted by snapper
That is exactly what most of us do
You can fit a simple manual weber carb and manifold from an early Fiesta XR2 or Escort XR3
Most kit cars need an exhaust manifold made to fit but you could just modify the down pipe from Fiesta XR2 or Escort XR3


and what about ecu and other electronics? you mantain the same devices? there are so many cables that is difficult to cut them without making a mess.


mikeb - 16/5/13 at 09:26 AM

Easy


Untitled by mjb22001,

zx6r bike carbs, make your own manifold or get Danst on here to make you one.
I'm running a NoDiz ecu for spark control, all you need is a ford coil pack
Dump everything else... sorted


whitestu - 16/5/13 at 11:48 AM

quote:

I got a 1990 Ford Sierra Estate 1.6 with a CVH engine and intend to change those complicated ancilaries to a more conventional/ancient stuff.


A 1990 CVH sierra is conventional ancient stuff already!

Mine was a '91 and had a carb. Is your efi?
Stu


Not Anumber - 16/5/13 at 01:18 PM

fit a 1.8 or 2.0 Pinto from another Sierra.


mcerd1 - 16/5/13 at 01:54 PM

just about any engine can be stripped back to the bare minimum
a few things to consider for any engine are:

Fuel
carb's - what kind can you get that are the right size for your engine ?
what manifolds are avalible or can be made / modified ?
does the engine have a mechanical fuel pump you can use ?

sparks
does the engine have a dizzy or can one be fitted ?
if it was an EFI engine and has a dizzy - will the dizzy work without the ECU ?
if you can't fit a dizzy then a spark only ECU is easyly added instead


all you need after that is to wire up the starter motor and it will run...
you'll probably need to add a catch tank onto the engine breathers if they are no longer connected to the inlet manifold, but thats about it


xico_ze54 - 16/5/13 at 02:27 PM

quote:
Originally posted by mcerd1
just about any engine can be stripped back to the bare minimum
a few things to consider for any engine are:

Fuel
carb's - what kind can you get that are the right size for your engine ?
what manifolds are avalible or can be made / modified ?
does the engine have a mechanical fuel pump you can use ?

sparks
does the engine have a dizzy or can one be fitted ?
if it was an EFI engine and has a dizzy - will the dizzy work without the ECU ?
if you can't fit a dizzy then a spark only ECU is easyly added instead


all you need after that is to wire up the starter motor and it will run...
you'll probably need to add a catch tank onto the engine breathers if they are no longer connected to the inlet manifold, but thats about it


for now thanks for some lessons, but still a bit confused with different opinions.

carb - I intend to put one very cheap taken from another Ford (I don't know what)
sparks - I confess I don't know what is a DIZZY. but my motor has not a coil and the distributor is built-in in the right side of the engine.
manyfold - I can make one for intake and another for exhaust. no problems with that.

if you could clearify me with some more specifications I appreciated.

cheers
Amadeu


mcerd1 - 16/5/13 at 03:08 PM

quote:
Originally posted by xico_ze54
carb - I intend to put one very cheap taken from another Ford (I don't know what)

any carb from any make of car with a similar power and engine size should work

as suggested above the XR2 / XR3 carb's would be a good place to start as they are built for more or less the same engine as you've got

the other suggestion above of bike carb's (e.g. ZX6R, R6, etc... ) would be better if you want higher performance

what ever carb you fit it will need some time on a rolling road to get it set up correctly

quote:
Originally posted by xico_ze54
but my motor has not a coil and the distributor is built-in in the right side of the engine.

I'm not sure about your exact engine, but some fords at that age used a distributor with electronic fuel injection
(this is common on pinto's, but I'm not sure about CVH's )

if you've got one of these they arn't much use as they they only have a sensor inside and not the bits to control the spark (the ECU does this job on these engines)

but you can swap the distributor for an earlier style one that doesn't need and ECU





( btw - Dizzy is just short for distributor, i'm just too lazy to type it.... )

[Edited on 16/5/2013 by mcerd1]


britishtrident - 16/5/13 at 04:23 PM

Just fit the head complete with dizzy and carb from a Escort MK3 XR or Ghia or 1600 Orion job done.


Not Anumber - 16/5/13 at 04:28 PM

If it is any type of Ford petrol engine of that era then it must have a coil. Either a traditional single coil with a single HT lead to a distributor cap or a twin coil pack with 4 HT leads straight to the spark plugs.


xico_ze54 - 16/5/13 at 09:26 PM

quote:
Originally posted by Not Anumber
If it is any type of Ford petrol engine of that era then it must have a coil. Either a traditional single coil with a single HT lead to a distributor cap or a twin coil pack with 4 HT leads straight to the spark plugs.


here is a pic of the motor.