Jaguar World – July 2019

July 201 9\JaguarWorld|9 3

CLASSICWORKSHOP

ThelargerearmostmountingbushfortheXJ6’smanualgearboxcanbe
replacedfromtheundersideofthevehicle.First,theengineandfront
areaofthegearboxshouldbesupportedwithatransmissionjack

Therebuiltmountismovedintopositionontopofthetransmission
jack.Itsfourmountingboltsarerefitted(includinganyspacers),butnot
fullytightened.Then,thetransmissionjackisremoved

Asecondtransmissionjackispositionedunderneaththerearmost

gearboxmount.Next,thefour½in–or^9 / 16 in–boltsthatsecurethe

mounttothebodyworkcanbeundone,followedbyone¾incentrenut

Thecentrethreadmustsitcentralthroughtheholeinthemiddleofthe

mount(itsfourmountingholesareelongatedtoachievethis).Then,all

fourboltsaretightened,followedbythecentrenut

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Thetechniciannowundoesthe¾incentre

nutand,asinmanycases,theentirestud

(threadedintothegearbox)comeswithit.

Thisisn’taproblem,becausethenutcanbe

undonebygrippingthestudinavice

Withthemountdismantled,theoldbushes

canbediscardedandsomeofthecomponents

cleaned.Itcanbereassembledusingthenew

oblongbushes

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Thesearethenewcomponentsthatmakeup

thegearboxmount–acoilspringwithtop

andbottomrubberseats,acentrebush,and

twooblongbushes.Theoldmountneedstobe

dismantledtofittheoblongbushes

Withnewcentrebushpushedintothemiddleof

themount,anewcoilspringwithrubberseats

andawasherispositionedontop.Extracted

thread(step4)isrefittedtogearbox

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Inourcase,thebushhasbrokeninthecentre,
sothe¾incentrenutcanremainfittedand
theentiregearboxmountberemoved.The
secondtransmissionjackhasbeenremoved,
butthegearboxremainssupported

Aftersecuringthemountinavice,two^9 / 16 in
nutsareundoneforeachoblongbushandtwo
¾innutsandboltsareslackenedtoallowthe
mounttobedismantledandbushesreplaced

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GEARBOXMOUNT