Okay I need some help.
What’s the timing on a
mostly stock 78 L-48. No emissions stickers under hood to check by.
Okay now what little info I have on motor passed on from previous owner. Rebuilt 20,000 miles ago with mild cam. He said 350 horse feels like 200. New parts include newly remand Quadra jet one month old.New stock fuel pump and new rapid-fire ac-Delco’s as of yesterday.
Now engine pops/misfires under part throttle but only on one cylinder (not sure which one can’t replicate at idle) and seems to surge about 50 to 75 rpm at idle. I accidently moved the distributor and I believe it’s now out of timing
Jimmy B.
Just can't wait to get on the road again.
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Joel Adams
C3VR Lifetime Member #56
My Link
(click for Texas-sized view!) NCRS
"Money can't buy happiness -- but somehow it's more comforting to cry in a CORVETTE than in a Kia"
Thanks guys went "back in" yesterday and found a plug
wire boot had broken off exposing the wire electrode! I believe the spark was
jumping to block causing the misfire. So I bit the bullet and bought a new 8.5
mm set of MSD wires and installed them too. Then got my trusty NEW timing light
and set the timing to the 8 btdc that was recommended by you guys. Took her out
last night for a 60 mile road trip and she ran great.
on a side note I joined
this site because the members have always helped each other out and with
me not being a mechanic I’m sure gonna need all the help I can get.
THANX NOW AND IN ADVANCE
YOU GUYS ARE GREAT
JB
Joel Adams
C3VR Lifetime Member #56
My Link
(click for Texas-sized view!) NCRS
"Money can't buy happiness -- but somehow it's more comforting to cry in a CORVETTE than in a Kia"