Land Rover Monthly – October 2019

(Chris Devlin) #1
LANDROVER MONTHLY 45

mentscreenwash switch for the obsolete
Lucas one. Again the Internet made this
task far easier than itwould once have
been.Within afew minutes I hadfound a
switch which looked almost identicalto
the original. I emailed thecompany who
sent me asample – it needed the thread
recutting so that itwould screw in, but in
all other respects itwas perfect. I ordered
a die nut online,recut the thread on the
switch (plastic body,so not exactly dif-
ficult),screwed it into the back of a Series
III wiperswitch and itworked exactly as
the original. Iteven had thesame type of
screw terminals in thesame positions.So
I ordered 100switche s, listed them inmy
eBay shop, and another smallgap in the
availabilityof parts for classic LandRov-
ers has now been filled.That first sa mple
switch was ins talled in Dave’s Lightweight.
Would anyof this even have been pos-
sible without the internet? It would
certainly have been much harder.
There is howeve r a dark sideto the
internet. To be blunt, it makes it far too
easy for idiots to communicate with the
outsideworld. Once upon a time, ifyou
wanted to pass on incorrect and unhelpful
technical adviceyou either hadto wait to
be asked, or activelyseek outsomeone
stupid enoughto listen to you. Nowyou
can just post your wrong information on
the internet where it might potentially be
seen by millionsof people. Joking aside,
there is avery real problem here. I don’t
hang around on LandRover forums and
online discussion groups much, mainly
because I already have more than enough
randomstrangers ringing me upat work
lookingfor free advice (“Justwondering
if I could pickyour brainsfor a minute”).
But I follow acouple of Facebook groups,
and one Sunday morning Iwas idly
browsing through oneof them when


somethingcaughtmy eye.
A noviceSeries IIAowner was trying
to replace therear brake shoes on an 88
inch and had posted a request for advice
on how thereturn springs should be
fitted. By the time Isaw the post, one per-
son had given him thecorrect answer and
four hadreplied with information thatwas
not only incorrect but potentially lethal.
I couldn’treally let that onepass by, so
I puttoge ther a post explaining not only
where the springs shouldgo but also why
they neededto be fitted in thatparticular
way. I find that if I understand howsome-
thingworks I’m less likelyto assemble
it incorrectly, and I doubt if I’m alone
in thinking thatway. I alsovery politely
requested that peoplerefrain from giving
technical advice on a brakingsystem that
they were unfamiliar with as theirwell-
meaning helpcould get someone killed.
The response? Quite afew ‘lik es’, and
anotherfour group memberstelling the
Series IIAowner howto assemble his
brak es in such away that theywouldn’t
work properly and mightresult in a nasty
accident. See what I mean about idiots?
To be fair, theten-inch drum brake fitted
to every short wheelbase LandRover
from 1948to 1993 is a slightly unusual
beas t. The trailing shoe is designedto be
free-floating so that itself-adjusts, being
held invery lightcontact with the drum
by a spring inside the brakecylinder.The
leading shoe has a snail-cam adjuster and
return spring. Oncar-type drum brakes,
almost invariably thetop return spring
goes between thetwo shoes, with
provisionfor adjustment(whether manual
or self-adjusting)at the bottom. This is
the advice peoplewere giving theSeries
IIA owner.
If you put areturn spring across the top
of the two shoes on a LandRover ten-inch

drum brake, it will pull the piston for the
trailing shoe rightback in to the cylinder,
and the shoe will no longer be ableto
self-adjust. You’ll probablyget awaywith
it on new shoes and drums, but assoon
as the shoesget a bitof wear in to them,
you will find that the brake pedalgoes
almost to the floor before the brakes
start to do anything.There is a spring
attachment post on thebackplate below
the cylinder: thetop spring should hook
round the adjuster po st on theback of
the leading shoe, long endforward,pass
between the adjuster and thebackplate,
then hookround theattachment post on
the backplate. I ha ve seen a few Series
vehiclesover theyears with thetop spring
attached across the two shoes: it isa
common enough error already without
having it spread far and wide onsocial
media. Happily, ifyou type “LandRover
Series brake springs” into Google Images,
you get half a dozen pictures showing
you thecorrectway to put these brak es
toge ther. The in ternet contains bothgood
and bad in formation,so don’t justgo with
the first thingyou read.

Ten-inch drum brake showing thecorrectwayto
fit the springs

2.5 diesel – old but good

I HAVE done quite afew 200Tdi and
300Tdiconversionsover theyears.
There aretwo types of ve hicle which
have provided the bulkof this work.
The fir st is Ninetys and OneTens built
between 1986 and 1990 with the 19J
turbodiesel engine.This motor has
acquired aterriblereputation over
the years. It was the last in a lineof
all-iron diesel pushrod ‘fours’ which
went back to the 2052cc motor fir st
seen in theSeries I in 1957. By late-
1950sstandards itwas an astonishing
technical achievement, revvingto 4200
rpm at a time when most small diesels
struggledto ge t past 2500. But die sel
design moved on a lot in thefollowing
30 years, and strapping a Garrett tur-
bocharger on to this ancient motor was
a de velopmenttoo far. Worked hard,
the enginesfell to bits: cracked pistons
were commoneven though theywere
supposedly strengthened, and internal
block cracking also manifested it self.

The 19Jwas a warran ty nightmare.
Treated sensibly and maintained
properly, it’s actually not abad engine.A
healthy 19J will pullstrongly enoughto
keep up with the traffic, and the power
delivery is moregentle than on modern
turbodiesels. But mo st of the ones that
come to me are life-expired, difficult
to start fromcold, blowing oil from the
breather into the air filter(diverting the
breather pipe into a Coke bottle is acom-
mon modification) and making all kindsof
strange noises. I usuallystrip themof re-
usable ancillaries(turbo, injection pump,
starter motor, etc) and scrap therest. In
a few years time I’ll probablyregret that,
just as I nowregret all the three-bearing
2.25 petrol engines Iweighed in when
they were two a penny and no onewanted
them.
The other mainsource of conversion
work is ex-militaryvehicles fitted with the
naturally-aspirated 2.5 diesel engine,for
which the description‘strong but slow’

comes to mind.These come intwo
versions: thestandard 12J engine, and
the muchrarer 11J, a military-only
variant which used a 19J bottom end
complete with uprated pistons. Almost
invariably the engines thatcome out
of military Ninetys and OneTens are in
good order, many having donevery few
miles since beingreconditioned.The
demandfor the se engines is not huge
and Ican’t bringmyself to scrap them,
so my workshop is gradually filling up
with the things.
About the only market I ha ve found
for them is fitting themto Series vehi-
cles in placeof the earlier andweaker
two and a quarter. The 2.5 gives a sig-
nificant improvement in performance
comparedto the 2.25. Drivability is
better: theearlier engine has a fully-
governed injection pump whose all-or-
nothing throttle responsetakes some
getting usedto. The 2.5 has a proper
vacuum pumpto power the brake
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