i got one of the first 1.3s (manual tappets) fitted the replacement weber carb this morning and i've just had a head gas flowed and both manifolds properly mated to the head to improve flow breathing which i'll slap on within the next month also got mk 3 gti rear axle with front and rear anti roll bars. 0 to 30 and back to 0 i'm thinking i'll be quicker than most standard gtis
Quick question, what are manual tappets and what reg is yours??
mine's an A reg. they changed from the manual rocker finger type tappets to hydraulic bucket tappets in august/sept 85. i don't know the exact difference but i suppose they're just two different ways of transfering motion from the cam to the valve.
The are as described.
The early rocker type are just like fingers that pivot on a ball stud, the cam lobe rocks the finger, which then opens the valve. The valve clearance is adjustable.
The bucket tappet is like an upside down bucket with a plunger in the middle, the tappet has a small hole in the side that fills with oil, this pushes the plunger out which takes up the valve clearance. The cam lobe pushes down on the tappet which opens the valve.