interesting problem.
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Senior User
Joined: Dec 2005
Posts: 323
Likes: 0
interesting problem.
I have a 78 with a 400, it has true dual exhaust with no crossover that the P/O did.
The driver's side exhaust sounds different and when i put my hand behind it i can feel the exhaust pulses.
The passenger side is much smoother and more normal.
Is this a compression issue? I'm really kinda lost with it. Hope it's nothing too serious.
The driver's side exhaust sounds different and when i put my hand behind it i can feel the exhaust pulses.
The passenger side is much smoother and more normal.
Is this a compression issue? I'm really kinda lost with it. Hope it's nothing too serious.
Postmaster
Joined: Dec 2005
Posts: 2,604
Likes: 2
It could be alot of things. Start off simple. Are you sure the plugs and wires are good? How about the cap? It could be something as simple as an ignition miss on that side. I would make sure the tune up is good before trying to trouble shoot any further. 
Mountain Pass
Joined: Jan 2005
Posts: 176
Likes: 0
From: Sunnyvale, CA.
A friend of mine also had a similar problem. He also had a lack of power too. I took a look at it for him and noticed that one of his spark plug wires was melted to his header. Just a thought.....goes a long the lines with what the other two said
Playing in the Dirt
Joined: Oct 2005
Posts: 2,302
Likes: 1
From: Southwest Georgia
I agree with the above, make sure the engine is running 100%. Timing, plugs, wires, fuel, etc. Then if you still have the problem, it could be a valve not closing all the way, (carbon build up, burnt valve, worn valve seat, etc.) or worn rings loosing compression on one cylinder.
