REPAIB INSTRUCTIONS, PART 2 VALVE STEM HEIGHT MEASUREMENT PROCEDURE I213 FBI On enginйs exhlbllng poor pйforman€, smok€ (ar iЎmes) and a noriceabre enqЎЎe mЎss (wirh rhe symproms gefling worce as rhe engine gers honet, may be an indicalion ot valve seal €cбssion. A d€.Й6й in їrїбdссу (Йlv6 lбsh) b6iw6en the valЙ rockeЎ and vбlve yoke (bridge) can be measured al lhe valves 10 delermine ii seal e@ssioc is occufinq. ll vdre sбal fece$ion is suspscr6d, lh6 following p@edъfe cac be ъsed 10 ceasue valve slem heighl, fo peнorm lhis measuremenl. a val€ slйm hйlghl measu€meЎl sauss (lool No. 35112461) бnd a depth cicymeler are requъed.
NOTE For detaЎled inlorcation on rccker am shЎft r€movбl and installalion procodures, reler to lhe applЎcable sclion ot lhis service macual. 3. Femore lheulre yokes {bridses). I . Femo@ conporйnls as necessary 10 gain б@es to lhe cy inder hйad (€lw) creL 2. Remove the cylinder head cover and r@ker NOfE The valve yokes musi be installed on the same sel of vбlws thal lh€y wa€ removed lrcm. Beio@ femoving lhe valve yokes, mafk lhem lo id€nlify lhek l@alion and orЎenlaьon, AЎ in@fecily hstalled vбlve yok€ causїs sdйc eЎglne damaqe due lo a dropped valve. For propйr valvй yok€ removбl and inslalLalion, fetef lo lhe appbpriaie *ctiocs in lhs sйruicї maЎual.
On йnak6 йquipped wjk an enqЎne bek, use suЎЎable Ўie sЎEps ь cehaniB wЎe lo etбk Lhe pi.tъs in the t@ket ас' fhe catch betweec tke pЎstore and rccket ams nust be naktaЎned, FeЎlure L. s@ute the ъgine bcke pЎstъs befo6 rcmvЎng thй teker 6halt as@nbly, allows the pist@s to drcp fton Ihe bъe of the ocket atns, lf a pЎstan drcps auЎ, ЎЎ cigtЎt not be tutЎ@d. at n nay be dit'ficulf ta p6h Ўhe pjston fuЎ|y back Ўnto the borc al Ўhe rcclйr am. Also, pislons are a nalъ-lЎЎ lo lhe bciet am, and sy Ўnadve ent nk-Lp of ъatpъъts nust be avoided.
A*endЎЎig tha @cket an shalt to lhe engЎne, or apeatЎhg an ъqЎhe wЎth tЙ BngЎne Ъакй pjsЎъs cot fully et@Ўed (ot сЎssЎns), rcsLlE Ўn btakage al vahe tcЎn @nponents and siq"iliBnt engine danage. ^caurtoN I 2. hbr brF b'c