[scenic]

I've been calling Razali since this morning just couln't get hold of him.
Hope to go up to KL during May labour day holiday. My mobile is 012-
2585460. BTW, how do you rate your ride with Toyota ? My ride in N/A.
What's FPR cacuum line ? I really respect your extensive knowledge in
Volvo cars.

[vol940]

Don`t worry, you have time, not rushing laah.
Toyota is ok, mine is RX300 3 liters N/A VVTI, best laah for me compare
to Bimmer X5.

FPR is Fuel Pressure Regulator which regulate the fuel entering into the
combustion chamber, connected to intake manifold using rubber hose.

[vol940]

scenic,

FYI, eventhough the original Volvo Spark Plug can last up to 40,000 km
with conditions to restore the spark plug gap every 5,000 km to 10,000
km, it is better to change it every 10,000 km or use equivalent spark
plug and change every you change the engine oil. Why ?

The reasons are :

1. We do not know whether the plugs are still in good condition or
already worn, though you restore the plug gap to the specified distance
(0.6mm to 0.7mm).

2. When the plugs are already worn, this will force ignition coils to
operate at maximum output - no good for your coil. Neglected ignition
system maintenance is the most common cause of modern ignition coil
failure.

3. As the spark plug air gap widens due to normal erosion (electrical
spark erosion), increased voltage is required to create a spark in the
combustion chamber. This increased voltage, in turn, demands more current
flow through the coil’s primary circuit. And, this increased primary
current flow can overload the power stage primary transistor, thus
damaging you power stage.

4. The increased secondary current created by the ignition coil also can
increase to the point that it perforates the secondary circuit in the
coil itself. Defective ignition coils are also notoriously sensitive to
extreme changes in ambient temperature and humidity.

Thus, to make the coil and power stage function well and extend the
service life, it is wise to replace the ori sparkplug or
equivalent at 10,000 km approximately. Unless you have an equipment test
that can warranty the plug could be re-used (No Worn and good plug gap
within specified value).

--------------------------

[vol940]

scenic,

Just to continue a bit.

When I changed the ori plug to volker iridium plug, it seems that this
plug requires higher voltage, thus higher current demand. Sure that this
volker iridium plug gives better in performance, but soon or later this
will effect the power stage.

Just today at 2.00 pm, my 940 LPT (Lebuhraya Pantai Timur) refused to
start on hot condition, I just wait cool down the engine until 6.00 pm,
then the engine easily restart. If it happen to you do not try to cool
down the power stage with water or any other cooling fluid or gas, there
will be a thermal shock which ruine your power stage (you can not restart
the engine until you change it), just let it cool down naturally.

[glock19]

Vol940,
Thanks for the offer on the TT, will meet up with you guys at Bukit Merah
but not till 4am ah? As for the 940 not be able to start when hot, most
propably the smaller wire to the starter has deteorated or the ignition
switch is not carrying enough current. You may fix a relay with the coil
power coming from this smaller wire (at the starter) and the contacts are
from the battery.

If you need confirmation, whenever your car can't start when hot, take a
adequately sized wire and hold one end to the terminal at the starter and
when it's properly held, touch the other end at the battery positive
side. Make sure your key switch is fully turned on and your gear is
in "P" or "N" and handbrake is up.

If I misread your post and the above is rubbish, please use cotton buds.

[vol940]

Glock19,

Don't worry laah, not till 4am. Last time was not planned, just enrolled
by itself.

BTW, thank for your "Mike Giver" tricky. Just want to ask you, what color
that smaller wire ???.

Thanks before.

[glock19]

I think that wire is green but very easy to recognise one. It should have
a square ferru (casing, plastic) near those masive big wires for the
stater itself.

[scenic]

Hi vol940,
Is Borsch spark plugs good for my ride ?

[vol940]

scenic,

Whatever you choose a spark plug brand, as long as you maintain the "Plug
Gap", "Plug Reach" and "Plug Heat Range", should be ok for your brick.

[scenic]

Ditto.