Carb Cleaning - Getting it Right

[tcgravy]

Cleaning Carburetor...

Currently soaking in lacquer thinner, just have a couple of questions...

1st:
I could NOT remove one of the primary main jets (the brass is stripped out). I assume this shouldn't matter as it should still clean up just fine?

2nd:
Is there any cleaning that needs to be done AFTER the soaking is complete? should I brush things? clear with compressed air? dry with washcloth? Please answer.

Engine is 89 454 magnum, Rochester Quadra jet is carb. Thanks in advance for the response.

 

[fossill]

Re: Carb Cleaning - Getting it Right

1. Main jets should be out in case of crud under the jet.

2. I always rinse with hot water and blow dry with compressed air thouroughly..

 

[tcgravy]

Re: Carb Cleaning - Getting it Right

Any suggestions for removing the primary main jet??

Again, its brass and extremely stripped out.

 

[fossill]

Re: Carb Cleaning - Getting it Right

If the screw slots are stripped out, the jet is ruined as that will cause disruption of fuel flows. A small easy out should get it out.

 

[jtmarten]

Re: Carb Cleaning - Getting it Right

Run a thin wire through the jet passages, spray with carb cleaner, blow out with compressed air.

 

[Flukinicehole]

Re: Carb Cleaning - Getting it Right

Never run a wire through a jet while it is still in the carb. Brass and aluminum are very easily scored by a steel wire. One little burr will make your engine run like crap.

 

[fat fanny]

Re: Carb Cleaning - Getting it Right

after soakiing wash it in warm soapy water and re- soak it in the (lacquer???) but before putting the kit on it you need to get that jet out period any kind of cleaner tip and or wire will disort the flow of fuel

 

[jtmarten]

Re: Carb Cleaning - Getting it Right

Never run a wire through a jet while it is still in the carb. Brass and aluminum are very easily scored by a steel wire. One little burr will make your engine run like crap.

jet PASSAGES

 

[171mach1]

Re: Carb Cleaning - Getting it Right

Lacquer thinner? did ya ever hear of carb cleaner? lol

 

[Bondo]

Re: Carb Cleaning - Getting it Right

Again, its brass and extremely stripped out.

Ayuh,... That means it's Junk,+ needs replacing....

 

[tcgravy]

Re: Carb Cleaning - Getting it Right

Thanks for the responses guys.


I'm planning to replace the primary jet thats stripped out -

Question:
How can you identify the primary jet size on the jet itself?

I've got 2 other sets of primary jets from other Quadrajets, unfortunately I can't seem to identify what size they are. According to service manuals I need a .068.....

 

[tcgravy]

Re: Carb Cleaning - Getting it Right

Nevermind. Got out the magnifying glass to identify the jets. Had a .068 to spare, all is good, and carb is back together, time to get it running....

Thanks for all the help.

 

[smarks]

Re: Carb Cleaning - Getting it Right

I guess you were able to get the bad/stripped jet out. Can you share how you did that with the rest of us?
Glad you got it...
Steve

 

[tcgravy]

Re: Carb Cleaning - Getting it Right

Easy Out / bolt extractor. Very simple with the right easy out and a drill.