[urq] Re: Bucket (solid) tappets

[Huw Powell]

This is probably a bit late of a reply to be helpful, I but I dug out my 
old coupe manual, remembering dealing with this once.

This applies to the WE 2.1 liter n/a engine, so I'm not sure how well it 
will translate to the engine in question:

warm, inlet: 0.20-0.30 mm exhaust: 0.40-0.50 mm
cold, inlet: 0.15-0.25 mm exhaust: 0.35-0.45 mm

warm is specified as coolant at least 35 C, cold is not spec'd but 
probably means room temerature, not -40.

I also didn't realize that any type 44's had solid lifters?  Though they 
would have all been hydraulic by then...

> The Type 44 Workshop manual (page 15) says the engine should be warm when tappet clearances
> are checked.  ("coolant above 35C").
> 
> I'm putting together an engine that someone else took apart - I'd like to check the tappets
> before I lift the cam out of the head to do the valve stem oil seals on the bench.
> 
> Anyone know a correction factor for a cold head?
> 

-- 
Huw Powell

http://www.humanspeakers.com/audi

http://www.humanthoughts.org/