Holly 3367

[Bill W.]

Mornin' all, A few weeks ago I asked for advice with my '66-350hp Holly list 3367. The problem was rich idle, no effect on engine when adjusting idle air screws and idle speed could not be set properly, either to high or to low. It was suggested that I change the power valve. I did, but it had no effect. The answer turns out to be warpage of the bowl, metering block and body. The tempoary fix is double gasketing metering block and very carefully tightening bowl screws. Engine runs perfect now. Permanent solution is a visit to Mr. Braswell or Mr. Luck for machining of surfaces.

This is a twenty year old replacement carb that has been cared for all it's life. Those members with old original carbs having similar problems might seek the same solution. Bill

[Jack H.]

Re: Holly 3367

Welcome to the low tech world of carbs, Bill! My '71 Q-Jet was declared a 'goner' by all who played with it. After a visit to Jerry Luck it has arisen and runs flawlessly....

[Jack H.]

Re: Holly 3367

Welcome to the low tech world of carbs, Bill! My '71 Q-Jet was declared a 'goner' by all who played with it. After a visit to Jerry Luck it has arisen and runs flawlessly....

[GDaina]

You can see just how warped..............

the surface is, by using a flat metal file and filing the carb's body. I alleviated a number of carb problems by filing, time consuming, and tedious work, but the results are the same, flat surface on both sides and the carb works.

[GDaina]

You can see just how warped..............

the surface is, by using a flat metal file and filing the carb's body. I alleviated a number of carb problems by filing, time consuming, and tedious work, but the results are the same, flat surface on both sides and the carb works.

[Alex Gilmour]

Re: You can see just how warped..............

You should never file a metering body. If you look at the metering body, there is a raised lip that runs the circumference of the body that should not be removed. A better choice is to replace the metering body with a new on if you find one that is warped. If you file this lip off, you may find yourself with leaks or other maladies.

Alex

'66 A/C Coupe

[Alex Gilmour]

Re: You can see just how warped..............

You should never file a metering body. If you look at the metering body, there is a raised lip that runs the circumference of the body that should not be removed. A better choice is to replace the metering body with a new on if you find one that is warped. If you file this lip off, you may find yourself with leaks or other maladies.

Alex

'66 A/C Coupe

[GDaina]

I guess I didn't make myself clear......

No, you don't touch the metering body, you file the carb bady, the surfaces that meet the metering bodies/metering plates.

If you're not in a great hurry, you can take the carb BODY down to your local machine shop and have them mill the surfaces. Normal turnaround time from the machine shop is one to two weeks.

[GDaina]

I guess I didn't make myself clear......

No, you don't touch the metering body, you file the carb bady, the surfaces that meet the metering bodies/metering plates.

If you're not in a great hurry, you can take the carb BODY down to your local machine shop and have them mill the surfaces. Normal turnaround time from the machine shop is one to two weeks.