Carbon Inside Intake Manifold

[c3po]

Originally Posted By: artificialist
At Carquest and NAPA, I have seen huge buckets of Chemtool that are designed so that a whole carb can be put in the bucket until the bad stuff dissolves away.

They aren't gone. I guess they get less popular once carb engines became much less common.


Wouldn't a product like Amsoil PI do the same thing, followed by a Maintenance Dose of MMO to keep everything cleaned and lubed.

 

[demarpaint]

No, nothing cleans like tanking a carb. Tanking the carb will get everything clean, but is usually done before a rebuild. I wouldn't tank the carb unless I was planning on rebuilding it.

 

[c3po]

Originally Posted By: demarpaint
No, nothing cleans like tanking a carb. Tanking the carb will get everything clean, but is usually done before a rebuild. I wouldn't tank the carb unless I was planning on rebuilding it.


Frank, how do we clean it without tanking it, spray a bunch of carburetor cleaner.

 

[demarpaint]

Spray it inside and outside with carb cleaner. I would spray the inside with the engine off and let it sit a little while. Then fire it up and spray the inside while its running. I would wait until you're ready to dump the oil.

Cleaning the outside of the carb gets any airborne junk off it, and will help if the linkage is binding up. When your done cleaning it with spray cleaner then treat it to some Amsoil PI.

Tanking is best done with the carb disassembled, prior to a rebuild. I wouldn't suggest tossing a fully assembled carb into a tank of solvent. Rebuilding a carb can be tricky too!

 

[c3po]

Frank, Sean Murphy told me that a little bit of carbon inside the intake manifold is normal, there was just a light dusty coating.

If it was totally clogged up with hard carbon then this would be a different story.

 

[demarpaint]

I think I mentioned that to you in a conversation we had.