So last time i posted here i was complaining of drivability issues such as rough idle, lots of vibrations, stalling, carb popping, lack of power etc. After a few failed attempts at having the car diagnosed by a mechanic, i decided to grab the wrenches and start figuring sh*t out myself 😂 This is what i checked, found and changed.
Spark Plugs - All 8 Autolite plugs were fouled. Replaced all 8 with correctly gapped platinum plugs.
Plug wires - Cylinder 7 and 8 wires underneath were burnt, cracked and open in several areas with electrical tape holding it together by the header which looked like it was on there since 1985. All were replaced with NAPA Beldan wires.
Cap, Rotor and Coil - The cap on the inside was black. The connections were bad, and the rotor itself was black and just as bad. The coil was loose, and an ohms test showed it was weak. An MSD cap and rotor, and new pertronix flamethrower coil was installed. Timing was also adjusted while doing this.
After this, the car ran MUCH better. Vibration gone, the breaking up feeling gone, and ot drove much better. However, the hesitation under accel especially from idle, lack of power and throttle response was still an issue. It also stalled a bit, carb adjustments would not hold, and backpopped through the carb a few times.
Holley 4160 600 CFM Carburetor - Under inspection, and a friend who also checked, it is "shot" and needs rebuild. A local rebuilder said 350 for a rebuild and i laughed. Picked up a brand new Edelbrock AVS2 which hopefully i will install today finally after i get some help with some vaccum lines in another post! lol
I hope this cures the cars problems for good. If it still runs bad and has power issues after this, im really not sure what else the problem can be. ( theres no tapping, knocking, blowing smoke or internal engine issues that im aware of )
Any ideas what it can be if i still have issues after this? sorry for the long post. But as always, thanks guys.
Spark Plugs - All 8 Autolite plugs were fouled. Replaced all 8 with correctly gapped platinum plugs.
Plug wires - Cylinder 7 and 8 wires underneath were burnt, cracked and open in several areas with electrical tape holding it together by the header which looked like it was on there since 1985. All were replaced with NAPA Beldan wires.
Cap, Rotor and Coil - The cap on the inside was black. The connections were bad, and the rotor itself was black and just as bad. The coil was loose, and an ohms test showed it was weak. An MSD cap and rotor, and new pertronix flamethrower coil was installed. Timing was also adjusted while doing this.
After this, the car ran MUCH better. Vibration gone, the breaking up feeling gone, and ot drove much better. However, the hesitation under accel especially from idle, lack of power and throttle response was still an issue. It also stalled a bit, carb adjustments would not hold, and backpopped through the carb a few times.
Holley 4160 600 CFM Carburetor - Under inspection, and a friend who also checked, it is "shot" and needs rebuild. A local rebuilder said 350 for a rebuild and i laughed. Picked up a brand new Edelbrock AVS2 which hopefully i will install today finally after i get some help with some vaccum lines in another post! lol
I hope this cures the cars problems for good. If it still runs bad and has power issues after this, im really not sure what else the problem can be. ( theres no tapping, knocking, blowing smoke or internal engine issues that im aware of )
Any ideas what it can be if i still have issues after this? sorry for the long post. But as always, thanks guys.
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