Head Still On, ... Cleaning Carbon

[BillCNC]

Hey All,

It turns out my head gasket is fine so no need to pull the head, ... Whew!

However, I wanted to clear out any carbon off the head and the top of the pistons if I removed the head for the gasket. In the past with modern engines, I have always slowly poured water DOWN a running engines carburetor to blow off carbon through steam pressure.

Question here is, How does one pour down an updraft carburetor?

Possibly though the vacuum port on the intake, but even slower?

Regards
Bill

[Patrick L.]

It could be put thru the vacuum port, or, use a spray bottle thru the carb throat.

[Keith True]

Why? What kind of problem are you having with carbon?Are there chunks of it causing detonation or something?The A has a low compression engine,there is always going to be a little black in it.With modern gas and oils carbon hasn't been a problem for many years.

[BillCNC]

Hi Patrick,

I'm not sure spray bottle could deliver enough and it would already be well on its way to being atomized, but I guess I could give it a try.

Keith,

I looked inside the cylinders with a borescope and did see some carbon buildup, not a lot so if I can knock it out now all the better. I have no previous history of the car except from the Widow of the owner which passed 10 years ago.

Regards
Bill

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[Bill Pursel]

I would use seafoam spray thru carb

[SeaSlugs]

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Originally Posted by Bill Pursel

I would use seafoam spray thru carb

Could run the engine directly off sea-foam use an old gas line screwed into the carb and a funnel and run it.

[BillCNC]

Originally Posted by Bill Pursel

I would use seafoam spray thru carb

Thanks Bill for reminding me.

I do have some seafoam here and I use it in the gas tanks of my modern cars. My Carb and Manifolds are brand new, so I think I'll just go through the vacuum on the intake manifold.

I might need to speed up a bit, age is on my heel's and is trying to catch up to me.

Regards
Bill

[40 Deluxe]

Originally Posted by BillCNC

Hey All,

It turns out my head gasket is fine so no need to pull the head, ... Whew!

However, I wanted to clear out any carbon off the head and the top of the pistons if I removed the head for the gasket. In the past with modern engines, I have always slowly poured water DOWN a running engines carburetor to blow off carbon through steam pressure.

Question here is, How does one pour down an updraft carburetor?

Possibly though the vacuum port on the intake, but even slower?

Regards
Bill

Since the advent of unleaded fuel, there is no carbon depositing from lead. So that leaves 2 causes: 1. Excessively rich fuel mixture-Fix the carb! 2. Worn/damaged pistons and/or rings. Again-Fix it!

[BillCNC]

Originally Posted by 40 Deluxe

Again-Fix it!

I owned and drove the car for about 3 week's, tore it down and did a complete body off chassis rebuild. I just put it all back together and drove it about 10 miles total and just wanted to clear out the existing carbon.

Regards
Bill

[Chuck Sea/Tac]

I think you’re always going to have a little carbon on the tops of the pistons. Find the sweet spot of your gav and don’t run rich.. (I wouldn’t run it lean either)

[BILL WILLIAMSON]

Originally Posted by BillCNC

Thanks Bill for reminding me.

I do have some seafoam here and I use it in the gas tanks of my modern cars. My Carb and Manifolds are brand new, so I think I'll just go through the vacuum on the intake manifold.

I might need to speed up a bit, age is on my heel's and is trying to catch up to me.

Regards
Bill

SO, another OLD BILL! Don't feel like the Lone Ranger! Several OLD BOBS, here also! Half the Men are either BILL or BOB---LOL
Once a cop asked my Friends' name,---"Bill Smith" The cop laffed, until Bill showed his Drivers' License!
Farmersville is an OKIE town, near here, a cop asked a Guy for his License,---"Ain't got none"----"Got any I.D."----"Idee about whut"?
This was a TRUE story, told to me by a Highway Patrol Friend!
IF you ever want to lurn a second language, OKIE is EASY. Just say it or write it, like it sounds.
Bill Old (82)

[abachman3]

Use Seafoam as recommended above. With the engine running, and a small flexible tube in the vacuum port on the intake manifold, just put the tube into the bottle of Seafoam and it will be sucked up into the engine... probably stalling the engine.. but ok. Let it sit for awhile, 15 minutes or so and then re-start the engine.... it may smoke quite a bit but ok.