carb issues

[rwhite65]

Looks like I had another hidden issue. I noticed a small tapping noise coming from the driver's side bank of cylinders today when I was going to a buddy’s house to adjust the idle mixture screws.

The tapping noise sounded like plastic on metal, not the sound I have heard from detonation in the past. The noise got louder, and the car finally started to lose power. I was able to get it home, where I realized my distributor hold down was lose , so I am not sure if the distributor was moving or not. The wires look good, and appear to be seated on the plugs.

The one odd thing I noticed was when it started to run crappy and rough, I went behind the car and could hear a serious change in my exhaust sound. The car actually sounded smoother and reminded me of what a Honda would sound like.

I believe I may have a bad plug, although they are only 1.5 years old. I have autolite 25's in it and hope to put some 24's in it tonight after work.

I will say this, I have pretty much eliminated the Trans and t.c. from the shutter problem now. I also had a slight backfire out the exhaust while I limped the car home, going down a pretty good sized hill.

Ryan

[82 GT]

Do you think it could be the U-joints causing the shutter...or maybe your carb. just needs rebuilt.
Out of curiousity, why are going to Autolite 24's instead of staying with the 25's? Are the 25's too hot a plug?

[rwhite65]

Originally Posted by 82 GT

Do you think it could be the U-joints causing the shutter...or maybe your carb. just needs rebuilt.
Out of curiousity, why are going to Autolite 24's instead of staying with the 25's? Are the 25's too hot a plug?

The carb was rebuilt either last summer or the summer before. I decided on the 24's because I cant leave anything alone, and thought I would try the hotter plug-which I was informed was the 24's.

[82 GT]

Uhh...I hate to tell you this but the 24's are a colder plug.
I know for a fact, at least for autolites, that a higher number means hotter plug. Hold the 24 and 25 next to each other and you will notice the 25 has a slightly longer reach into the combustion chamber. That's how you tell how a plug is hotter or colder than another.

[rwhite65]

Originally Posted by 82 GT

Uhh...I hate to tell you this but the 24's are a colder plug.
I know for a fact, at least for autolites, that a higher number means hotter plug. Hold the 24 and 25 next to each other and you will notice the 25 has a slightly longer reach into the combustion chamber. That's how you tell how a plug is hotter or colder than another.

Well, I guess thats what I get for goin to the auto parts store and leaving it up to them to give me the right ones.....lol....
Ryan

[PKRWUD]

Originally Posted by rwhite65

Looks like I had another hidden issue. I noticed a small tapping noise coming from the driver's side bank of cylinders today when I was going to a buddy’s house to adjust the idle mixture screws.

The tapping noise sounded like plastic on metal, not the sound I have heard from detonation in the past. The noise got louder, and the car finally started to lose power. I was able to get it home, where I realized my distributor hold down was lose , so I am not sure if the distributor was moving or not. The wires look good, and appear to be seated on the plugs.

The one odd thing I noticed was when it started to run crappy and rough, I went behind the car and could hear a serious change in my exhaust sound. The car actually sounded smoother and reminded me of what a Honda would sound like.

I believe I may have a bad plug, although they are only 1.5 years old. I have autolite 25's in it and hope to put some 24's in it tonight after work.

I will say this, I have pretty much eliminated the Trans and t.c. from the shutter problem now. I also had a slight backfire out the exhaust while I limped the car home, going down a pretty good sized hill.

Ryan

That all sounds like a timing issue, and if your distributor hold down was loose, I'd bet the farm that the distributor moved. Reset your timing, and all should be well again.

[rwhite65]

I reset the timing, still have the new issues. I thought the same thing. Now I am trying to decide what is causing the problem. The ignition is pretty simple on this thing....Mallory brain coil and a Mallory Unilite. The Unilite’s module has gone bad on me in the past.
Ryan