I'm trying to change Gasket and timing cover seal. How do you get at the two bolts or screws that seem to come in from the back side? 49 Chev 216
The short answer is "remove the pan". The longer answer is "once apart, drill the threads out of the cover and tap the holes in the front cap so two bolts can go in from the outside". Makes it much easier the next time. Look for "how to" details over at http://oldgmctrucks.infopop.cc/eve/forums/a/tpc/f/462107036/m/193101435?r=193101435#193101435
sad but true while you have it a part check your timing gear off the cam shaft and make sure these is no cracks. its made out of a fiber materal and isnt metal. mine was cracked
What they said . Plus , once the oil pan is off , you'll be able to scrape out all the old paraffin sludge and blow/rinse the oil intake screen clean with Starting Fluid too so it'll pick up the oil easier . Remember to support the timing cover very well when you're banging the oil seal out and the new seal in , it'll easily distort and leak foevermore if you don't . If you find a fibre cam gear , CHANGE IT IMMEDIATELY , making sure to change the steel crank gear too and be SURE to use the same brand on both gears else it'll be noisy . Once the new holes are drilled & tapped , loosely install the timing cover and gasket , then install the pulley and after it's in place , go back and tighten the timing cover bolts~ this allows the cover to move and self center on the seal / pulley interface and stops those annoying drips & leaks .