I use 30wt 'Brad Penn' Break-In oil
in cooler temps, a 10-30wt would help some but not necessary
Excuse me for my overly ****-ness
you probably already know all this
here's my routine, never had a flat tappet cam go bad on me
in 45+ years
make sure to use
a real break-in oil
not just the separate Zink additive stuff
(not worth wiping the cam/lifters)
a real
blended break-in oil so you don't take any chances
wiping/flattening/killing
the cam & lifters
make sure it doesn't
low idle much (only a high idle like 2200-2500 RPMs)
get the ignition timing close at start up & get on with it
(fine-tune it later)
for the 1st (15 min.s minimum) 20-25 or so min.s
if it's not getting too hot
make sure to vary 'RPM' some every few min.'s
up or down like 300 or so 'RPM'
make sure all the fluids are topped off
so it doesn't get
too hot or kill the trans, PS pump etc.
have a hose or jug/s of water ready, it may get a lil' hot
for when &/or after the thermostat opens & fill it back up
& then cap off the radiator
continue with varying the RPMs
no low RPMs for the initial break-in
people get impatient & don't do that step correct (use proper blended oil)
Huge reason why '
so many people' wipe/flatten the cams
a big fan in-front of the car, blowing thru/over it helps some too
or do it outside, where air can circulate at min.
after
break-in period idle it down to near normal RPMs
& the shut it down,
let it cool down/complete the heat cycle,
before you tune it or run at a lower/reg. idle or ever attempt to drive it
1st
500 or so mile vary RPMs when driving, not just one set RPM,
like the open hwy or freeway
stop & go stuff works well to break it in
some guys leave the break-in oil for like 1,500 miles
good for the rings to seat
I have varied it 800 to 1,500 & never had problems
(with a quality Break-in Oil)
drain oil, check the pan for shinny particles
change filter too
cut it open, if you can & look inside,
check for excessive metallic particles & bearing materials
sorry for the short book
I hope it all goes well Randy or whoever is reading this