1969 Chevrolet Camaro engine

Tiny
CHW
  • MEMBER
  • 1969 CHEVROLET CAMARO
  • V8
  • 2WD
  • AUTOMATIC
Took off two barrow carb and installed four barrow 600 cfm with electric choke after install started engine and it ran for about 15 min than quit now it only starts in the retard position and won't restart after I time it timed at 4 degrees before top dead center I am thinking maybe the timing chain. Engine has never been rebuilt as far as I know
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Wednesday, November 12th, 2014 AT 8:48 AM

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Tiny
HMAC300
  • EXPERT
Ll the cap off and see if rotor moves fast or kind of jerky if it's jerky it may be the chain. Also check your fuel pressure should be about 4 psi and 1/2 pint of fuel in 30 seconds. By just changing intake should cause car to quit so check to see if distributor hold down has moved, especially if it has the spring type clamp. That used to happen a lot if it is most auto parts have a solid one for around $10. Then bring cylinder 1 up to tdc and look where balancer mark is.
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Wednesday, November 12th, 2014 AT 9:44 AM
Tiny
CJ MEDEVAC
  • EXPERT
Hmac300

SORTA GOT ME PUZZLED TOO!

BRING IT TO TDC---WITHOUT CHECKING #1 PISTON HEIGHT WITH A DIAL INDICATOR - NOT USING THE "TIMING MARKS" TO LINE UP TDC - HOW DO YOU ACCOMPLISH THIS?

I KNOW YOU ARE PROBABLY HINTING AT A POSSIBLE "SLIPPED HARMONIC BALANCER"

I CAN'T SEE THE "EZ WAY" OF DOING THIS WITHOUT COMPARING THE "IN USE BALANCER" TO A "NEW" OR "PROVEN" ONE

MAYBE IT'S JUST ME!
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QUESTIONS FOR "Chw"

NOT YELLING- I JUST LOVE CAPS!

A) YOU ARE TIMING WITH THE VACUUM ADVANCE LINE "OFF AND PLUGGED" DURING THE PROCEDURE? AND ARE YOU TIMING AT CURB IDLE SPEED? ANYTHING HIGHER WILL MAKE THE MECHANICAL ADVANCE START TO COMPENSATE (WE DON'T WANT THAT!)

WE ARE USING "MANIFOLD VACUUM" OR "PORTED VACUUM" ON THE DISTRIBUTORS VACUUM ADVANCE?

B) YOUR PCV FRESH AIR INTAKE IS NOT PLUGGED OFF (CANNOT BREATHE AIR THRU THE ENGINE INTO THE PCV HOSE THAT FEEDS THE CARB (WHICH NEEDS THE PCVs AIR TO BE SORTA CALIBRATED WITH THE IDLEs FUEL) I HAVE SEEN PEOPLE STICK A "2ND PCV" IN THE FRESH AIR HOLE, THINKING IT WAS AN "EZ" MAKESHIFT ELBOW, WHEN IN FACT, IT REALLY BECAME A PLUG!

C) ARE YOU USING A "PLAIN JANE TIMING LIGHT" OR ONE WITH AN ADVANCE DIAL? IF YOU ARE GUESSING ON THE GUN'S SETTING AND PROCEDURE? STOP! SIMPLY SET THAT PUPPY ON "ZERO" AND DO IT THE OLD FASHIONED WAY AS IF YOU HAD A PLAIN TIMING LIGHT

D) LOOKED FOR VACUUM LEAKS?

E) SEND US SOME GOOD WELL LIT PICS OF THE SITUATION(s) WE LIKE PICS!

IF YOU ARE SORTA NOT COMFORTABLE (LACK OF BETTER WORD) IN WHAT'S GOING ON OR "HOW TOs"- JUST ASK US! WE CAN BRING YOU UP TO PAR, THAT'S WHAT WE DO!

THE MEDIC
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Wednesday, November 12th, 2014 AT 3:59 PM

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