noisy escort
J R Walsh
noisy engine, very closely resembling the sound of a Diesel motor. Is this a
common problem on these cars and if so, is it easy to fix? I assume the
noise is due to rattly tappets. A ford dealer I spoke to said that if the
engine is the CVH (as a matter of interest, what does that stand for) then
it is possible that the hydraulic tappets are not functioning correctly,
possibly due to gunge in the oil (the oil has not been changed for some
time, which I suppose adds weight to this theory). Were engines with
adjustable tappets also fitted to these cars and therefore could these be
responsible for the noise? I suppose another plausible explanation for the
rattling sound is a worn cam? Would be grateful for any opinions.
Regards, Jim.
Martyn Taylor
followers a NON-FORD type will be quite cheap) and when you are done NEVER
put anything other than Duckhams Hypergrade in the engine (synthetic would
be better but more expensive BUT you can leave it in for twice as long as
normal oil) CVH stands for "something VALVE HEMISPHERICAL" in think
J R Walsh <J.R....@shef.ac.uk> wrote in message
news:7sqbjd$e5g$1...@bignews.shef.ac.uk...
Chris
Martyn Taylor <mar...@esatclear.ie> wrote in message
news:7sqc8n$404$1...@fraggle.esatclear.ie...
> fit new cam followers (you may be better of fitting a replacement cam and
> followers a NON-FORD type will be quite cheap) and when you are done NEVER
> put anything other than Duckhams Hypergrade in the engine (synthetic would
> be better but more expensive BUT you can leave it in for twice as long as
> normal oil) CVH stands for "something VALVE HEMISPHERICAL" in think
Close!
Compound Valve (angle), Hemispherical (combustion chambers).
Guy King
from "Martyn Taylor" <mar...@esatclear.ie> contains these words:
> "something VALVE HEMISPHERICAL"
Compound Valve-(angle) Hemispherical
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Guy King |~~(o o) Never put off till
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Steve - Musical Approach
which was always particularly rattely.
You can tell by the shape of the Rocker cover, which engine it is - if its
fairly flat and rectangular, its CVH, if its domed and narrow its the OHV.
Hope this helps
--
Steve - Musical Approach
Stafford & Aldridge W.Mids
steve.m-...@NOSPAMvirgin.net
http://business.virgin.net/musical.approach
Vistula
>My friend has just bought an F-reg 1.3 Escort Bonus which has a particularly
>noisy engine, very closely resembling the sound of a Diesel motor. Is this a
>common problem on these cars and if so, is it easy to fix? I assume the
>noise is due to rattly tappets. A ford dealer I spoke to said that if the
>engine is the CVH (as a matter of interest, what does that stand for) then
>it is possible that the hydraulic tappets are not functioning correctly,
>possibly due to gunge in the oil (the oil has not been changed for some
>time, which I suppose adds weight to this theory). Were engines with
>adjustable tappets also fitted to these cars and therefore could these be
>responsible for the noise? I suppose another plausible explanation for the
>rattling sound is a worn cam? Would be grateful for any opinions.
>
The CVH engines all had hydraulic tappets. These can fail with time
and produce the noise you describe. Fortunately, replacing them is
straightforward. Halfords sell an inexpensive special tool for Ford
CVH engines which allows you to replace tappets, valve stem oil seals
etc, all without removing the cylinder head. When you've removed a
tappet, try pressing the end in with your finger. If you can press it
in, it's failed. Breaker's yards have always been full of Mk III
Escorts; I'm 99% sure that the Mk IV uses the same hydraulic tappets.
>
John Kenyon
Mine had a 1.3 HCS engine - the one with distributorless ignition,
using a twin coil.
This engine does not have hydraulic tappets. (The 1.4 does IIRC)
The diagnosis came down to worn cams - with the added bonus that
it makes it virtually impossible to set the valve clearances properly.
In the end I just left it - this engine is as tough as old boots
- one major service a year, and an oil/filter change inbetween.
with no timing belt worries like the contemporary 1.4 CVH (which
according to reports was a complete crock - minimal increase in power
married with f*** knows how much complication.)
The diesel-like sound got replaced by true diesel sound when I got
myself a 306 DTurbo :)
/John
J R Walsh wrote:
>
> My friend has just bought an F-reg 1.3 Escort Bonus which has a particularly
> noisy engine, very closely resembling the sound of a Diesel motor. Is this a
> common problem on these cars and if so, is it easy to fix? I assume the
> noise is due to rattly tappets. A ford dealer I spoke to said that if the
> engine is the CVH (as a matter of interest, what does that stand for) then
> it is possible that the hydraulic tappets are not functioning correctly,
> possibly due to gunge in the oil (the oil has not been changed for some
> time, which I suppose adds weight to this theory). Were engines with
> adjustable tappets also fitted to these cars and therefore could these be
> responsible for the noise? I suppose another plausible explanation for the
> rattling sound is a worn cam? Would be grateful for any opinions.
>
> Regards, Jim.
--
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Guy King
from "Steve - Musical Approach"
<steve.m-...@NOSPAMvirgin.net> contains these words:
> You can tell by the shape of the Rocker cover, which engine it is - if its
> fairly flat and rectangular, its CVH, if its domed and narrow its the OHV.
Also, the distributor is round the back on the push-rod engine.
Martin Walker
>My friend has just bought an F-reg 1.3 Escort Bonus which has a
>particularly noisy engine, very closely resembling the sound of a
>Diesel motor. Is this a common problem on these cars and if so, is it
>easy to fix? I assume the noise is due to rattly tappets.
In late 1988 I think the 1.3 Escort was fitted with the 'HCS', OHV
engine. Before spending any money it might be worth checking the
valve clearance as a previous owner might have incorrectly adjusted
the valves. I recently bought a 1.3 HCS Orion (I think they're a
similar engine to the Escort) which also had very noisy tappets. When
checking the valve clearance it became obvious that an inexperienced
DIY'er had adjusted the valves for a standard OHV engine and not the
HCS. Although the inlet valves on both types of engine are adjusted to
(IIRC) 0.20mm, the exhaust valves on the OHV are adjusted to 0.56mm
whereas the HCS engine are adjusted to 0.30mm.
If your engine is the HCS, pay particular attention to the clearance
of the middle valves (4 & 5) which are BOTH inlet valves. On the OHV
engine, valve 4 is inlet and valve 5 is exhaust. Although the valve
sequence on the OHV engine goes;
exhaust/inlet, exhaust/inlet, exhaust/inlet, exhaust/inlet. The valves
on the HCS are;
exhaust/inlet, exhaust/inlet, inlet/exhaust, inlet/exhaust.
--
Hope this helps,
Mart