carb newb

[canonball]

Hey guys, I'm doing my first carb rebuild, going pretty good so far although I'm getting into the tricky part of getting it put back together (correctly) and then the tuning which will be fun I'm sure. Anyway, before I start getting it back together I wanted to post a couple photos so some more experienced individuals could look it over. Mainly what I noticed is in the main body, in each of the barrels, there's a layer of crud that's got a rough texture and super tough to get off, not to mention it's tough to even get in there with a brush. The photos are from before the carb dip but that part looks about the same after I pulled everything out of the dip after letting them soak overnight. I should get all that gunk cleaned off before reassembly right? Probably a dumb question but just want to make sure. I also threw in a photo of the throttle body, just because.

model: Stromberg WW 23-153
no idea when it was cleaned or rebuilt last

[luvbowties]

I think if you post the very same pics ( plus cleaned disassembled parts) AFTER complete disassembly AND then soaking, you may get more "hits". I think I see a major problem already which after proper dipping should show up clearer. If I'm seeing correctly now, you may need a "new/different" carb to rebuild, or at least a good used major part for your carb.

BTW: GOOD carb-soak should remove practically ALL old scale and crust that has attached to carb--both inside and outside.

Good luck 'til then.
Sam

[canonball]

True, yeah the dip took care of a lot of the grime, not so much in the body though. I'll get some photos of the post-dip parts in a bit and put them on here.
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[canonball]

Alright, had a chance to get back to the carb, everything is dry and should be ready to put back together. Looked through my kit and looks like I've got all the gaskets and parts that I need. While the three main sections of the carb were soaking in the dip I cleaned up some of the other parts with carb cleaner. When I pulled the parts out of the dip I also hit them with carb cleaner and did a little scrubbing with a brush. There was some greasy gunk in the main body. The only oil I have around at the moment is some motorcycle oil, non-synthetic 4 stroke 10W-40, is that ok to use to soak the accelerator pump plunger in? Or should I use regular car oil? Might be a dumb question but I'd like to avoid as many dumb mistakes as possible. I attached photos of the parts post-cleaning, am I missing anything that anyone can tell? I'm going to soak the acc. pump plunger for a few minutes, start putting everything back together, replacing old parts for new ones that came with the rebuild kit. Once the carb is back on the engine and accelerator, choke, vacuum, and fuel are hooked back up is there anything I should do before starting the engine? I know the air/fuel and idle screws will need to be adjusted right?

[T and S]

That looks like maybe it has been burned ?

[canonball]

On the main body right? I thought it didn't look quite right. This is the first carb I've cracked open though so what do I know! If that's what it is what does that mean?

[geezer#99]

Originally Posted by canonball

On the main body right? I thought it didn't look quite right. This is the first carb I've cracked open though so what do I know! If that's what it is what does that mean?

That means you should get another carb!
Those boosters won't flow right like that.

[T and S]

That carb may be ready for the junk pile.

[canonball]

Yikes, that's what I was afraid of. Ok, next question, I've seen folks around here talking about a 2 barrel holley being a good replacement for the stromberg. Let me mention again I'm pretty new to getting down and dirty with carbs lol. So what do I need to look for as far as getting one that will play well with the truck? I've got a '63 GMC 1/2 ton with the V6.

Will this 500 cfm model work?

http://www.jegs.com/i/Holley/510/0-4...oductId=743827

[canonball]

Am I right in thinking that I could use the above mentioned Holley carb but it would need an adapter for the intake manifold? Anyone know of a pretty simple setup that would work pretty well for the 305E I have?

[geezer#99]

Look here.
http://6066gmcguy.com/holley.html

[canonball]

Yeah, I was looking over that earlier, had a couple questions about that that I found answers to on this thread...

http://67-72chevytrucks.com/vboard/s...39#post6264139

So this is what I'm looking at, part numbers match to what the 6066 guys listed (although on Jeg's site on the item description for the adapter plate it says "Large Holley 2bbl to any Rochester 4 bolt 2bbl"). A couple people in the above used that adapter plate with no issues. Some people bolted everything up with no issues, a couple said they had to run new choke cables or fab new accelerator brackets but aside from that it was just a matter of bolting everything up.

[canonball]

Forgot to include the screenshot with the parts...

[canonball]

Ok... got the new carb and adapter plate. Seems like people are having different experiences as far as linkages matching up, choke cable not reaching, etc. So I got the adapter plate bolted up and put the carb on and the bolts that came with it are JUST too short, only about 1mm sticks out from under the adapter plate. I'll stop by the the hardware store and grab some slightly longer bolts tomorrow. The rear left bolt doesn't go in to very easy either, it doesn't get straightened out enough to go in and took some light tapping in with the handle of a screw driver. Looks like the fuel lines will need some fabrication to match up to the carb. Also I'll need a new fuel filter, the old glass one looks sweet but doesn't filter anything. I'll check out the throttle linkage and choke cable tomorrow and see if they're going to work or not.

No idea why the photos show up sideways on here :-/

[MusicMan70]

http://67-72chevytrucks.com/vboard/s...=546588&page=2

[padresag]

Originally Posted by canonball

Ok... got the new carb and adapter plate. Seems like people are having different experiences as far as linkages matching up, choke cable not reaching, etc. So I got the adapter plate bolted up and put the carb on and the bolts that came with it are JUST too short, only about 1mm sticks out from under the adapter plate. I'll stop by the the hardware store and grab some slightly longer bolts tomorrow. The rear left bolt doesn't go in to very easy either, it doesn't get straightened out enough to go in and took some light tapping in with the handle of a screw driver. Looks like the fuel lines will need some fabrication to match up to the carb. Also I'll need a new fuel filter, the old glass one looks sweet but doesn't filter anything. I'll check out the throttle linkage and choke cable tomorrow and see if they're going to work or not.

No idea why the photos show up sideways on here :-/

looks like your filter should have an element in it. that bolt appears to be a little long. more than likely should be studs in there that come up through then all you have to do is put the nuts on, sometimes you can put that type of bolt in first and lift the carb up, put the bolt in and then thread it in. make sure that it doesn't bottom out. one should never force a bolt to start it. one should always start by finger first to make sure theu start ok or you will be having greater problems. A BFH doesn't always solve the problem. that fuel filter should be moved a little further away from the carb so that it sits right
ron