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[tech] Valve shim q's

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Here's the deal.
1.8 solid lifter JH
Autotech 268* cam
    Specs: This cam runs strong after 3000 rpm and peaks at 6800 rpm, 
netting a 13 horsepower gain. The profile is 11.2mm lift with a 286 
degree duration measured (the European way) at 0.1mm check clearance. 
Translated, this is 0.436 inches lift and 243 degrees of duration at 
0.050" check clearance.

I need to do a valve adjustment and I'm looking for options.  I've found 
a set of 18 shims, "the Shim Set works on all solid lifter cylinder 
heads. It contains an assortment of eighteen shims ranging from 3.45mm 
to 3.90mm in thickness."
According to Bentley, the most common sizes for replacements range from 
3.55 to 3.80mm.  
Now, would I be better off getting the set of 18, or should I make my 
measurements and only get the ones I need?  I also have 3 engines in the 
basement, I plan on scavenging those shims as well.
What kind of damage would running my motor without doing an adjustment 
have done?  I have maybe 3 miles on the recent install, and I never took 
the revs over 3300.....

Nate
'81
'84


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Here's the deal.<br>
1.8 solid lifter JH<br>
Autotech 268* cam<br>
&nbsp;&nbsp;&nbsp; Specs:<font face="Arial,Helvetica,Geneva,Swiss,SunSans-Regular"><font size="2" face="Arial">
 This cam runs strong after 3000 rpm and peaks at 6800 rpm, netting a 13
horsepower gain. The profile is 11.2mm lift with a 286 degree duration measured
(the European way) at 0.1mm check clearance. Translated, this is 0.436 inches 
lift and 243 degrees of duration at 0.050" check clearance.</font></font><br>
<br>
I need to do a valve adjustment and I'm looking for options. &nbsp;I've found
a set of 18 shims, "the Shim Set works on all solid lifter cylinder heads.
It contains an assortment of eighteen shims ranging from 3.45mm to 3.90mm
in thickness."<br>
According to Bentley, the most common sizes for replacements range from 3.55
to 3.80mm. &nbsp;<br>
Now, would I be better off getting the set of 18, or should I make my measurements
and only get the ones I need? &nbsp;I also have 3 engines in the basement, I plan
on scavenging those shims as well.<br>
What kind of damage would running my motor without doing an adjustment have
done? &nbsp;I have maybe 3 miles on the recent install, and I never took the revs
over 3300.....<br>
<br>
Nate<br>
'81<br>
'84<br>
 
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