If it is a capacitor = supressor = condensor, then the two wires will be the
+ and - wires, and the tab on the back is solely a mount. Normally with the
1 wire version, the tab or case of the capacitor acts as the - terminal.
Normally the capacitor is mounted with the -ve to earth, and the positive to
somewhere in the circuit that could be noisy, eg the alternator output. When
there is DC current only, the capacitor does basically nothing, but when
there is an AC component, the capacitor charges and discharges to reduce the
size of the fluctuations.
The notations indicate that it is a 2.2µF (microfarad) capacitor. (BTW, to
type the µ, just hold down the [Alt] key, then type 0181 on the number pad,
and release the [Alt] key. There are codes for heaps of useful symbols, such
as ², ³, °, µ etc.
Kevin
- Original Message -----
From: markjamesborley
To: peugeot-L@yahoogroups.com
Sent: Thursday, April 28, 2005 9:28 PM
Subject: [Peugeot-L] 505 GTD - Broken alternator component - please help!
Can someone help me identify a component attached to the alternator
of my 1985 505 GTD and tell me if my proposed substitute replacement
will work, as I'm unable to obtain an exact replacement in the UK.
The component in question is bolted to the back of the alternator.
There are 2 that look similar and they're both bolted to the same
lug, but the one that's broken has 2 leads coming out of it whereas
the other only has one. I'm told it may be a suppressor, but the
people who have seen it have not seen one with 2 leads before.
Here's a more detailed description of the component. It's a black
plastic rectangle, 30mm high x 20mm wide x 13mm deep. It has a metal
lug at the top that's used to bolt it to the back of the alternator
and 2 wires emerging from the bottom, one of which is connected to
the alternator and the other to the wiring loom. The 2 wires emerge
from the component at the same place but of course that doesn't mean
they're connected to the same thing inside, although they might be.
The markings on the component are as follows, starting at the top
i.e. nearest the metal lug:
FACON
Then a "-" in a circle with an arrow pointing up and on the same
line a "+" in a circle with an arrow pointing down.
2022
Then a large "+" symbol with the number 84 at the centre.
2.2 microF (it actually uses the Greek symbol for "micro", which
looks like a "u" with a long tail, but I can't type that on my
keyboard)
MADE IN FRANCE
The problem is that one of the wires has broken where it emerges
from the plastic. When this happens (and its happened twice now) the
battery doesn't charge so eventually the engine stops (which is a
bugger, because I'd heard these engines would keep going until they
run out of diesel, but it seems they need power to keep a fuel
solenoid open, so no electrical power means no engine!).
As a temporary repair I've scraped away the plastic enough to solder
the wire back but its only a matter of time before it goes again.
I can get a suppressor that looks just like the broken one for £1
EXCEPT it only has one wire coming out of the bottom. My question
is, if I get one of these, can I simply branch the single wire to
the 2 connections (back to the alternator and to the wiring loom)?
Put another way, in my original (broken) component, do the 2 wires
that emerge from the bottom have a common connection inside? I'm
wary of simply trying it to see what happens because I don't want to
damage the alternator (or any other electrical component the other
wire may be connected to via the wiring loom) if it doesn't work.
Grateful for any help that may be offered!
Mark
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Received on Thu Apr 28 03:08:15 2005
