Re: benefits of running mechanical lifters

[ChuckKuecker <ckuecker@mcs.net>]

At 03:09 6/5/97 -0500, you wrote:
>In a nutshell, the hyd lifters adjust themselves. So if there is wear of
any kind, 
>or the valved have beaten the seats to where it would cause the valve
clearance to 
>change, the hyd lifters automatically adjust them for you. No removing the
valve 
>cover, no cranking by hand a few dozen times, no messy and sometimes difficult 
>removal of the shims ect. Its all done for you. 
>
>Now, the bad part about the hyd lifters is they are dependant on proper oil 
>pressure. Sometimes the oil gets hot and the oil pressure just isnt what it
needs to 
>be. That in combination with the aging proccess of hyd lifters themselves not 
>working properly with a low but within oil pressure specs, you get some
really loud, 
>rattling lifters at idle and hopefully at higher rpm's it clears up. ( very 
>annoying)Start up in my GLi always has some lifter noise for about 15-30
seconds 
>when its cold. After that, its quiet. 
>
>A good example of this is Randy Walters Gti. After a race, his car is so
loud people 
>stand around it waiting for it to blow! He has got over 230,000 miles on
the engine 
>and as you know, none of them were easy. (Its been a dedicated autox car
for about 
>the last 6-7 years now so it only gets driven to races, raced hard and
driven home 
>again.)
>
>Hope that about covers it for you? 
>
>
>Shawn

Are 'solid' lifters perhaps a bit lighter than the hydraulics? Possibly this
could be a reason to use 'em in a race engine...

Chuck Kuecker

ckuecker@mcs.net

'83 Scirocco (in process)
'58 Ghia Convert
'75 Bug (rusty!!)
'67 Bug
'63 Bug
'91 Vanagon


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