Carb Rebuild

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Carb Rebuild

Postby 71sup » Sun Jan 13, 2013 9:53 pm

I just got my engine rebuilt but the carb seem to be in definite need of an overhaul. Can I use a chain carb kit and will it be straight forward or are there some nuances I need to be aware of? Its a 34 Pict 3 and will be upgrading this summer. Thanks
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Re: Carb Rebuild

Postby vdubjim » Sun Jan 13, 2013 10:08 pm

nope nothing. No crazy checkballs or anything.
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Re: Carb Rebuild

Postby 71sup » Tue Jan 22, 2013 11:39 pm

20130120_225621 (800x600).jpg
20130120_225641 (600x800).jpg
I used this stuff rebuilding Holleys and quadrajets, it stinks pretty bad use gloves and let the carb sit overnight
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Here is what I started with, nice clean parts.
Okay last weekend I attempted to tackle this. I went to Oreillys and picked up a kit. Directions/exploded numbered view was a good guide to follow break down.
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Re: Carb Rebuild

Postby 71sup » Tue Jan 22, 2013 11:49 pm

20130120_225742 (800x600).jpg
20130120_225811 (800x600) (800x600).jpg
Pump diaphragm spring
Carb base
Attachments
20130120_225825 (800x600).jpg
diaphram
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Re: Carb Rebuild

Postby 71sup » Wed Jan 23, 2013 12:01 am

20130120_225921 (800x600).jpg
Install diaphragm on pump cover
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attach lever of pump diaphragm to throttle shaft tightened over screws
20130120_232439 (800x600).jpg
Main jet
Last edited by 71sup on Wed Jan 23, 2013 1:12 am, edited 1 time in total.
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Re: Carb Rebuild

Postby 71sup » Wed Jan 23, 2013 12:15 am

20130120_233844 (800x600).jpg
Here is where the main jet is installed.
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Plug and gasket ; at this point install new o-ring on volume control screw and air/fuel screw and install
20130120_234111 (800x600).jpg
Flip base over and install jet. Make certain that your flat head screw driver is skinny enough not to damage the plug threads, those damaged threads could clog this jet.
Main jet
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Re: Carb Rebuild

Postby 71sup » Wed Jan 23, 2013 12:21 am

20130120_234205 (800x600).jpg
20130120_234315 (800x600).jpg
20130120_234406 (800x600).jpg
Plug installation and jet Aux Idle Speed Fuel hole
Jet hole
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Re: Carb Rebuild

Postby 71sup » Wed Jan 23, 2013 12:27 am

20130120_234359 (800x600).jpg
Jet Aux Idle Speed Fuel
20130120_235337 (800x600).jpg
Fuel Cutoff Valve
20130120_235404 (800x600).jpg
Air Correction Jet
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Re: Carb Rebuild

Postby 71sup » Wed Jan 23, 2013 12:34 am

20130120_235433 (800x600).jpg
Here is where the Air Correction Jet goes
20130120_235522 (800x600).jpg
Here is where the float and pin goes. This is definite the time to make sure you do not have any holes/cracks in the float!!!
20130120_235732 (800x600).jpg
This copper shim sets your float level for the 34 pict 3 you want the .5mm
Jets continued
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Re: Carb Rebuild

Postby 71sup » Wed Jan 23, 2013 12:50 am

20130121_000859 (800x600).jpg
The copper shim gasket and needle seat screw to the top of the upper body assy of the carb. As with anything when tightening start in the middle and work out
20130120_233817 (800x600).jpg
My only gripe with this kit was I had to make a slight modification to this gasket because as manufactured it covered this hole.
20130121_001337 (800x600).jpg
Here I marked the carb cover in respect to the notch on the heater element shown in the next pic
Carb top cover
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Re: Carb Rebuild

Postby 71sup » Wed Jan 23, 2013 1:11 am

20130121_001355 (800x600).jpg
Notch on heater element
20130122_235443 (600x800).jpg
Attachments
20130122_235429.jpg
Here is my 34 Pict 3 installed ready to go. I haven't fired it up yet. I still need to change the spark plugs. Out of mere curiosity I pulled one and realized it was fouled. I'm pretty sure it wasn't a control leaked Ha ha! Anyway as soon as I get the plugs installed I'll post results!!!!!
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Re: Carb Rebuild

Postby vwlimoguy » Fri Jan 25, 2013 3:35 pm

Nice documentation. I usually had to do this after a month of sitting on my last car that had this carb. A disassembly and blown out with air would suffice. GAasket usually hold up to about 6 disassemblies.
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Re: Carb Rebuild

Postby vdubjim » Sat Jan 26, 2013 2:10 pm

And like i said on that other post, ENSURE that the fuel inlet nipple is not loose. Years of vibration etc cause it to wiggle. If it pops off the pump pumps fuel all over the engine. BOOM.

Image
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