Rebuilding/Cleaning a carburator

[key-z]

Does anybody know where I can get intructional information on how to rebuild and clean out a caburator from Lacquer build-up?

Thanks,

Key-z

 

[KYHunter2]

Re: Rebuilding/Cleaning a carburator

A manual , is the first thing you need to get, preferrably OEM.

Thoroughly soak , and clean all passages , bowl etc. etc. etc.

If you have plastic carbs, be carefull with the carb cleaner.

Blow out with compressed air, cleanliness, is the most important thing.

Spray can be used, along with the soaking, but they have to be disassembled, to be cleaned correctly.

Simply spraying cleaner into throats, doesn't get'er done.

Install rebuild kits, and do a link and sync.

It's not as critical, in this post, but you need to post your motor info.

ie: make, year, model , etc. etc.

KYHunter

 

[rickdb1boat]

Re: Rebuilding/Cleaning a carburator

http://www.meegsonline.com/tmd/TMDsVideoChronicle2.wmv ] Click Here [/url]

 

[funpilot]

Re: Rebuilding/Cleaning a carburator

I think KYHunter advised me once to get the gallon container of carb cleaner with the metal basket in it. It was expensive, but I do several carburetors a year it seems, and the set up can be used many, many times with the same cleaning solution.

fp

 

[ratracer]

Re: Rebuilding/Cleaning a carburator

Get the OEM repair manual. It will show the correct procedures for carb removal and installation as well as the carburetor disassembly/reassembly for your particular model, and you won't get this level of detail in a 3rd party (Clymer etc) manual.

You will need the correct make/model/year of your motor so you can order the correct rebuild kit(s).

 

[key-z]

Re: Rebuilding/Cleaning a carburator

Thank you! Thank you! Thank You!
I appreciate you all sharing your knowledge.

Key-zd

 

[BoatBuoy]

Re: Rebuilding/Cleaning a carburator

After making sure your carb kit has replacements, remove the welch plugs before cleaning. Simply drill a small hole in each - just barely through. They're soft so they drill easily. Then flip them out with an ice pick or similar.

If you have a digital camera, take pics as you go. You may want to refer to them when re-assemblying.

 

[hunt-fish.com]

Re: Rebuilding/Cleaning a carburator

After making sure your carb kit has replacements, remove the welch plugs before cleaning. Simply drill a small hole in each - just barely through. They're soft so they drill easily. Then flip them out with an ice pick or similar.

If you have a digital camera, take pics as you go. You may want to refer to them when re-assemblying.

Do you really need to remove the welch plugs? What do you use to put the welch plugs back in? I saw a video that the guy used a socket extension with a rounded tip. What other ideas for putting them back in?

Also, when doing the lync & sync do you need the OMC piston stop? Is there another way to lync and sync without the OMC piston stop?

 

[KYHunter2]

Re: Rebuilding/Cleaning a carburator

Removing the welch plugs, allows for a better cleaning / inspection.

The ext. works very well, thats what I use.

As far as the link and sync. , if your just rebuilding carbs , you can do without the stop.

You just want to be sure the carbs are in sync. with each other.

As well as throttle cam, throttle valve, etc.

The stop tool , is to align your timing point, if needed.

You probably don't have to worry about it.

If you want to check it , do a search for stop tool.

They are easy to make.

KYHunter

 

[BoatBuoy]

Re: Rebuilding/Cleaning a carburator

I've used socket extension, works good - just anything blunt or slightly rounded. You could use an inverted carriage bolt, or place the rounded end of a ball-peen hammer on the plug and tap with another hammer. Doesn't take much, just a little tap cause they're soft. Coat the edge with gasket sealer before putting in place.

Without removing, there's the possibility that some passages don't get thoroughly cleaned and/or examined for cleanliness.

 

[91cajun]

Re: Rebuilding/Cleaning a carburator

I've never taken the welch plugs out. They look like they are lead. What holds them in? Is there some sort of molded lip that they get wedged into?

 

[tschamp20]

Re: Rebuilding/Cleaning a carburator

rick,where can i find his videos.or is that you?impeller replacement was good video.please post a link.thanks

 

[Paul Moir]

Re: Rebuilding/Cleaning a carburator

TheMarineDoctor.Com

Look in "Chronicles"

The plugs are soft metal discs - I'm not sure which but certainly stronger than lead alone. They're convex shaped and you tap the centre with a hammer & punch to expand the plug until it spreads and seals into it's seat. The "outer edge" is actually the carburetor itself.

 

[KYHunter2]

Re: Rebuilding/Cleaning a carburator

I allways thought they were aluminum.

When you install them, the dome goes up.

When you hit it , it spreads to fill port.

Like Paul said.

Lead would be too soft,wouldn't stay set.

KYHunter

 

[funpilot]

Re: Rebuilding/Cleaning a carburator

You don't even need to drill the plugs to remove them, which could spread little shavings around. You can just take a small countersinking punch for brad nails and drive it in and lever them out.

fp

 

[andy6374]

Re: Rebuilding/Cleaning a carburator

I think KYHunter advised me once to get the gallon container of carb cleaner with the metal basket in it.
fp

I thought I heard on this forum many times that regular old automotive carb cleaner that you buy by the gallon is very harsh for the casting in the carb metal. The main benefit of this stuff is that you can completely immerse the carbs in the cleaner.

I've been told just to use a can or two of CRC carb cleaner instead. Or if you want to soak that using acetone is the way to go.


Comments, please

 

[funpilot]

Re: Rebuilding/Cleaning a carburator

I'm confused now too Andy. The stuff in the gallon container was almost oily feeling, didn't feel agressive at all. The CRC stuff in the spray cans evaporates very fast and feels much harsh.

Here's the thread, and it was rickdb1boat who suggested the gallon of carb cleaner.

http://forums.iboats.com/bbBoard.cgi?a=viewthread;fid=28;gtid=1103468;gpid=1103468#gpid1103468

fp