pythias at pacifier.com
Wed Jun 4 19:38:59 MDT 2008
I've been using a click-adjust for a number of years, not
being all that good as determining a "sliding fit"... i have a cam by
OREGON CAM REGRINDERS that is recommended to have the valve lash set
at .018" HOT.... ..
i have always assumed that the threads on the adjusters were 1/4" 28
TPI. ... that worked out mathematically (28 tpi X 30 clicks per
revolution, X .018) to 15 clicks..... been doing that for years.....
now i find out (thanks Hal) that they are 26 TPI!
i went back and read the instructions.. it says use 8 clicks to get
.012... hmmmm... something is off here.....me or the instructions....
so i went back and read a critique of the click-adjust. on thing is
that i've been using the math on the adjuster side, BUT there is that
1.2 or 1.3 to one ratio NOT taken into account.....hmmmm! ?
if the instructions ARE correct, i should be using 12 clicks to get
.018 (8/12 = 12/18)....i've been running .022 HOT for a long time.....?
i have noticed that the engine doesn't like to go over 4500 rpm under
load... .... . would this be the effect?.. ..of too loose a valve
do i have to go back this weekend and set with feeler gauges before i
set out for LoTO, or should i leave it alone having been succesfully
running like this for years and reset it when i get home again?...
before i set them last weekend, i averaged 38.8+ mpg on a 500 mile
trip to Vancouver BC at 60 mph...
Bill mailto:pythias at pacifier.com
'66 Sprite HAN8L49403
* "There's no need for silence," Tom allowed.
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