dirty intake issues

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Jul 26, 2023 | 02:22 PM

Jack360

Thread Starter

4th Gear

Joined: Oct 2010

Posts: 4

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dirty intake issues

FE motor intake manifold has rust and glop inside. Carb was pulled and intake hole plugged with rag and covered with a scrap of aluminum siding weighted down by a brick for a while. I'd hate to take the intake out as I'm not sure it would ever get back in. Any thoughts? Salespeople at the store aren't my fav and I'm not convinced to do the water-down-carb once it's warmed up and running like a friend suggested. Fresh carb is ready to go on, but I don't want to run the starter to turn the motor with that stuff in intake.

Is there a product to break down the buildup and slowly push it through cranking the motor by hand? I'd much prefer that than removing the intake. Vehicle could see some good use as a farm truck.
Thanks in advance

Jul 26, 2023 | 02:28 PM

Pickupmanx2

Lead Driver

Joined: Jun 2006

Posts: 5,676

Likes: 997

From: Near Yosemite CA

Well... since you don't want to pull the intake, and I don't blame you, those suckers are heavy, get a shop vac and a small hose and vacuum out what you can, then install fresh carb and cross your fingers...

Jul 26, 2023 | 02:36 PM

Jack360

Thread Starter

4th Gear

Joined: Oct 2010

Posts: 4

Likes: 0

I do have a vacuum and some attachments, along with an air compressor. Sandpaper, dowels (tool handles) and stuff.. I'd like to put something wet in there after giving her the best scrub-down from up above as possible. This is all new to me but I have vacuumed out a clutch housing in another vehicle and couldn't believe how much debris came out

Jul 26, 2023 | 03:07 PM

tbear853

Hotshot

Joined: Feb 2004

Posts: 10,833

Likes: 2,611

From: The Shenandoah Valley

Get the glop out using longish scraper and shop vac, don't worry about rust unless a hole. Don't know what "glop" is, but intake removal would be best.

Jul 26, 2023 | 04:00 PM

Old Guy F-250

Laughing Gas

Joined: Aug 2020

Posts: 821

Likes: 292

From: Pelham Alabama

Jack
IMO the BEST tools to get that situation solved correctly is a set of sockets, wrenches and screwdrivers and new gaskets..
Reason is if all that is in the manifold, surely it is in the head also.
Once you THINK it is clean enough, and fire it up, All that stuff goes into the cyls, and the rest will be history.
If it was mine I would take the intake off, CLEAN everything up including head intake ports.
.

Jul 26, 2023 | 11:13 PM

SlikWillie

Cargo Master

Joined: Sep 2013

Posts: 3,259

Likes: 1,321

From: Pryor, OK

I say do it right and remove the intake. But, if you don't want to do that, then follow these steps:

1. Scrap and vacuum what you can, the best you can.
2. Get some parts cleaner solvent and clean it some more.
3. Remove all the spark plugs.
4. Spray a whole can of carb cleaner into the intake while someone is turning over the engine repeatedly until can is empty.
5. Reinstall spark plugs and bolt on a carb.

This will ensure you get as much crud out of the intake and cylinders as possible. But, like I said, remove the intake, do it right.

Jul 27, 2023 | 08:50 AM

Viper Pilot

Fleet Mechanic

Joined: Feb 2022

Posts: 1,377

Likes: 709

Just remove the intake manifold. “If you don’t have time to do it right, do you have time to do it twice?” These aren’t modern vehicles that require 500 things to be removed before you can get to the manifold. Yeah, it’s heavy. Oh well. Get a helper if you need to. Might be a good excuse to spring for an aluminum manifold in case you have to pull it again.