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Title: Aprilia tappet clearances Post by: welleyes on 12 November, 2011, 03:44:04 PM Can anyone give us the cold tappet clearances for an Aprilia engine?
Stuart Tallack pp Andrew Tallack Title: Re: Aprilia tappet clearances Post by: ben on 12 November, 2011, 05:22:23 PM Ten thou' (which is quarter of a turn on the adjusting screws from zero as they have a 1mm pitch thread)
Title: Re: Aprilia tappet clearances Post by: GG on 12 November, 2011, 06:32:49 PM take a look here:
http://gallery.me.com/geoffreyg#100345&view=grid&bgcolor=black&sel=1 Title: Re: Aprilia tappet clearances Post by: welleyes on 12 November, 2011, 09:00:27 PM The "Bible" actually says 10 thou hot.
Stuart Tallack pp Andy Tallack Title: Re: Aprilia tappet clearances Post by: ben on 12 November, 2011, 10:16:39 PM I hesitate to contradict the "Bible" but the factory data in the table cited by GG doesn't seem to say anything about the engine being hot.
I have always set mine at 10thou cold. Maybe they don't change much! Title: Re: Aprilia tappet clearances Post by: welleyes on 12 November, 2011, 10:56:23 PM Thank you. Just what we wanted to know.
For "Bible" read English translation of the Italian manual. I presume it was issued with a new car as it is in English (translated by Italians?) and refers to tables and diagrams in the Italian language manual. Title: Re: Aprilia tappet clearances Post by: Sliding Pillar on 13 November, 2011, 02:09:08 PM I always did mine HOT!
Title: Re: Aprilia tappet clearances Post by: lancialulu on 14 November, 2011, 11:32:42 AM Just rifling through my Aprilia files I have a data sheet that states HOT 10 thou.
I now know what to do when I start my first full Aprilia service. I assume this is every 5000 miles?? Tim |