![]() |
2nd valve adjust rebuild backfiring like crazy
Wondering if the backfiring is caused by incorrect valve adjustments or should I look elsewhere?
|
Make that "2nd after rebuild"
|
It is more likely an air leak, or you have plug wires mixed up.
|
Or you turned the crank in the wrong direction when you adjusted each cylinder. Car will run but sounds dreadful.
|
Quote:
|
I don't think there is anyway to adjust the valves so badly that it would cause backfiring.
|
Ronnie,
when you adjust the valves you turn the crank in a specific direction as you work from cylinder #1 onward. Go backwards and you have a disaster. The valve settings are completely wrong. Did it years ago on a Volkswagen. Jim |
I hear you, but it would be hard to mess it up by accident as over two-thirds of the cam surface is off the lobe. That means even if you rotate the engine with a blind spin you have a 66% chance of having the rocker face off the cam lobe, which is then in a perfect position to adjust the valves.
|
Though I feel a bit like a http://forums.pelicanparts.com/support/smileys/wat5.gif ya that's it "blockhead", I'm http://forums.pelicanparts.com/suppo...s/boldblue.gif for Joy.
I crossed wires 4nad5 or 5and4 however you want to look at it. I love this place. Thanks for the help... |
Shane, you may well be right but just try it then start the motor. It will run, and sound like you put quarters thru all of the spark plug holes.
|
Quote:
|
Quote:
... Even if I did do it with a blind spin, and stopped on the lobe I would be able to tell because if the valves were even close before, then I would have to back the adjuster out all the way to release the spring tension. That would be an indicator that I was going down the wrong road. I do understand how it could happen to someone who had never done a valve adjust. Good point, thanks! |
All times are GMT -8. The time now is 06:15 AM. |
Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2025, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2025 Pelican Parts, LLC - Posts may be archived for display on the Pelican Parts Website