- Joined
- May 7, 2012
- Messages
- 250
- Reaction score
- 3
- Location
- Near Houston, TX
- My Car
- 1971 Coupe. 302 2V - C4 trans
OK, car generally runs good, no problems, but needs some engine cosmetic work. So we sprung for some awesome new valve covers, and replaced the spark plug wires with some beautiful red custom hi$ stuff.
New PCV valve, new PCV hose, and cleaned up alot. Spent alot of time trying to get the plug wire routing looking nice.
NOW, however, engine starts and runs ok, seems to run good at hi-rpm, but as soon as I release the throttle, a lot of back-firing, popping, and general unpleasantness.
So, we have double, triple, quadruple checked the wires go to right cylinder (we replaced them one at a time anyway), I'm virtually certain the distributor didn't rotate during the replacement - seems firmly in place now. But - sure sounds like a timing issue.
Help? What could we have screwed up? Thoughts?
Was: looks bad, runs good
is: looks good, runs bad
Not exactly the change I was looking for.
Jay
New PCV valve, new PCV hose, and cleaned up alot. Spent alot of time trying to get the plug wire routing looking nice.
NOW, however, engine starts and runs ok, seems to run good at hi-rpm, but as soon as I release the throttle, a lot of back-firing, popping, and general unpleasantness.
So, we have double, triple, quadruple checked the wires go to right cylinder (we replaced them one at a time anyway), I'm virtually certain the distributor didn't rotate during the replacement - seems firmly in place now. But - sure sounds like a timing issue.
Help? What could we have screwed up? Thoughts?
Was: looks bad, runs good
is: looks good, runs bad
Not exactly the change I was looking for.
Jay