Frank,
Compression? Probably checked it, but if not...
Under "Normal" circumstances tolerance buildups in a cam (such as
tolerances for location of the keyway, lobe location tolerances, etc) can
cause a couple of degrees of timing error. I know my Mustang racer buddy
says he hopes for 1 or 2 degrees max. If you're off by more than 10
degrees, you've likely missed a tooth. In a tighter engine, valves would
get bent, pushrods bent, rocker arms damaged, etc. With the high valve to
piston clearances in the 1275 (with dished pistons, and a non-shaved head
anyway) you'd probably just feel it as performance. Don't know how much
you'd feel, though.
And it sounds like our machinists went to the same Time Management class.
----------
> From: Frank Clarici <spritenut@Exit109.com>
> To: spridgets@autox.team.net
> Subject: No power
> Date: Sunday, September 13, 1998 9:47 PM
>
> Motor heads and especially Racers
>
> I recently rebuilt a 1275, stock for the most part.
> This particular engine just does not seem to have the power of most
> 1275s. I have had numerous 1275s and have rebuilt quite a few in the
> past.
> After driving my Bugeye yesterday with the engine in question then
> driving my wife's Sprite today, both with stock 1275s only I do have a
> Weber DCOE on the Bugeye (I know it is not the carb since I swapped out
> SUs trying to give the car more oomph)
> For some reason this engine just doesn't have what it should.
> Carb, timing, ignition, valves etc. are all in tune.
> My only thought would be cam timing.
> Would a tooth off cam timing be really noticeable? or would it just make
> the car feel like mine does? Just not quite right.
> Any thoughts, comments, or ideas?
>
> Not too critical as this engine is just a temp while the new performance
> engine is STILL in the machine shop!
> --
> Frank Clarici
> Toms River, NJ
> Lots of LBCs
> http://www.exit109.com/~spritenut
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