I own a 1977 Chevy K10 4x4 with a 4 barrel carbureted (holly) 350. When I push the accelerator pedal to the floor - or 3/4 of the way down, a knocking sound begins and the car does not seem to further accelerate from it's current speed. When the tranny is in nuetral there is no noise, and the engine is as it always has been. Could this be the result of needed carb. adjustments, or is the torque converter going bad? As I said, it drives just fine untill you try to accelerate quickly or push the pedal all the way to the floor. Thanks for any answers ahead of time!
2007-06-05 10:35:15 · 7 answers · asked by tyler e 2 in Cars & Transportation ➔ Car Makes ➔ Chevrolet
It could be a few things but I would suspect the camshaft has an exhaust lobe that is wearing down and an exhaust valve that is barely opening. If you pull the valve covers and crank the engine you can see if they are all working correctly.
2007-06-05 11:03:23 · answer #1 · answered by beth 6 · 0⤊ 0⤋
well it could be several things. 1st it could be that when you hit the pedal to the floor, ur flooding the carb, you need to adjust the floats on the carb, 2nd you could have water in the gas tank which also causes knocking in the engine also. If it was the torque converter them it would be troubles with ur tranny, but it does not sound that way. You may try draining the tank all together or buy a gas additive that will dry the water out of the tank
2007-06-05 10:41:56 · answer #2 · answered by back2skewl 5 · 0⤊ 1⤋
Knocking sound is troubling---if the knocking is from the engine, sounds more like timing is off and you're getting detonation under full throttle load but it could also be from misadjusted secondaries. Check static timing and timing advance of the distributor up to around 2800 rpm's---service manual should tell you procedure and what specs should be. Wouldn't be t-converter---that would sound all the time.Could also partly be secondaries not kicking in with extra fuel---check operation and adjustments with Holley or tuning book for Holley carbs. Vacuum or double-pumper?--- secondaries can make a big difference in WOT operation if not setup right.
http://racingsecrets.com/holley_carburetors.shtml
2007-06-05 14:10:05 · answer #3 · answered by paul h 7 · 0⤊ 0⤋
Not very easily. Im sure there are aftermarket performance companies that make an intake manifold for this swap. Your accord is fuel injected, so, to make the swap to carburation you will need a lot of different modifications. I would upgrade your current injection rather than going back to the days of carbs. It will probably be cheaper and injected performance is alot more efficient and practical. Try some Import performance catalogs for performance injection upgrades. There is plenty out there for your Honda.
2016-05-17 13:30:48 · answer #4 · answered by ? 3 · 0⤊ 0⤋
I'm going out on a limb here, but I would check the adjustment on the kick down cable or lever, when the carb is open to about 3/4 it should engage the kick down all the way, it may be not engaging all the way and just kicking it out of gear,
2007-06-05 10:42:13 · answer #5 · answered by Anonymous · 1⤊ 1⤋
Check your timing, sounds like it is advanced a little too far. If the truck "bogged" down when you hit the gas, it could be carb adjustment.
2007-06-05 11:26:05 · answer #6 · answered by maintenance_school_electrician 1 · 0⤊ 0⤋
Like the guy above me said I would check the transmission kickdown, also I would check that the bottom butterflies or secondaries are opening, they can get gummed up and stuck then not open causing it to bog.
2007-06-05 10:45:33 · answer #7 · answered by Kissafatbaby'sAss 2 · 0⤊ 0⤋