About every carb I have has a worn shaft. It causes it lean condition.

On the Quadrajet it makes the throttle hang up which is exciting in the rain!

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'72 Duster 198 stock cam, 3:23's Hookers on jack stands for 8 years in the driveway
'79 Maxivan 360 Offy Qjet Comp RV cam/rusting in the driveway.
93 D350 160HP Cummins Auto Dually Clubcab needs a injector pump
2005 Golden Couch Buick

How do you fix the throttle bushings?

Cody

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Old truck: 82 D150 225, 2bbl, dutra duals, 2.5" straight pipe to dual 2.5" tail pipes. Mud tires, 4spd, old forest service truck.
Current truck: 98.5 Ram 2500 ccsb, sport, 24v cummins, 5spd, 4.5" lift, 35's, 5" straight pipe.

Machine shop can do the job, I have heard they can use valve guides (bronze).

Richard

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Part of Tyrde-Browne Racing

You can actually buy bushing from a carb supply place. I have rebuilt a couple where I just threaded the shaft on the passenger side and put in a screw with Loctite, washer and a plastic washer.


A slant racer showed me how to bush it with a straw from McDonalds! I used a straw from Sonic.

Tested it in a jar of gas.

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'72 Duster 198 stock cam, 3:23's Hookers on jack stands for 8 years in the driveway
'79 Maxivan 360 Offy Qjet Comp RV cam/rusting in the driveway.
93 D350 160HP Cummins Auto Dually Clubcab needs a injector pump
2005 Golden Couch Buick

Hah nice! How long would a straw last? I just need a temp fix for maybe a week till I get another carb.

Cody

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Old truck: 82 D150 225, 2bbl, dutra duals, 2.5" straight pipe to dual 2.5" tail pipes. Mud tires, 4spd, old forest service truck.
Current truck: 98.5 Ram 2500 ccsb, sport, 24v cummins, 5spd, 4.5" lift, 35's, 5" straight pipe.

Might just poke in some wheel bearing grease around it and try that.

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'72 Duster 198 stock cam, 3:23's Hookers on jack stands for 8 years in the driveway
'79 Maxivan 360 Offy Qjet Comp RV cam/rusting in the driveway.
93 D350 160HP Cummins Auto Dually Clubcab needs a injector pump
2005 Golden Couch Buick

Not long.

Gasoline does nasty things to some plastics.

Put a straw in some gas to see what happens....

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Ed
64 Valiant 225 / 904 / 42:1 manual steering / 9" drum brakes

Hobby shops have thin-walled brass and copper tubes...........

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Ed
64 Valiant 225 / 904 / 42:1 manual steering / 9" drum brakes

Cody,

When you had the 1945 apart, what size is the main jet?

How old are your spark plug wires? Ever look under the hood with no light (late at night with no street lights) to see if any are arcing?

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Aggressive Ted

http://cid-32f1e50ddb40a03c.photos.live ... %20Swinger


74 Swinger, 9.5 comp 254/.435 lift cam, 904, ram air, electric fans, 2.5" HP2 & FM70 ex, 1920 Holley#56jet, 2.76 8 3/4 Sure-Grip, 26" tires, 25+MPG

The jet in the 1945 is #66 it's what was in there when I got it. There is I think a 57 in the 1920. I did look under the hood at night at my friends house when working on it with all lights off and pitch black (he lives kind of in the woods) no arcing or blue streaks running the wires. My friends dad said it is probably the ignition module. I snagged one off of a chevy at the yard, it runs a little better but still hesitates and pops at low speed but it's much easier to start. Could it be my coil? I fixed the vac leak for now but it still doesn't run right.

Cody

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Old truck: 82 D150 225, 2bbl, dutra duals, 2.5" straight pipe to dual 2.5" tail pipes. Mud tires, 4spd, old forest service truck.
Current truck: 98.5 Ram 2500 ccsb, sport, 24v cummins, 5spd, 4.5" lift, 35's, 5" straight pipe.

I did. Put it in a jar of gas. Nothing happened for over a week.

Key words........"temporary fix."

Carb supply places sell bronze bushings.

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'72 Duster 198 stock cam, 3:23's Hookers on jack stands for 8 years in the driveway
'79 Maxivan 360 Offy Qjet Comp RV cam/rusting in the driveway.
93 D350 160HP Cummins Auto Dually Clubcab needs a injector pump
2005 Golden Couch Buick

Ross, take look at Carb Junkys Carburetors' Throttle Shaft Bushing Tool Repair Kits on eBay.

Olaf.

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Aspenized

Thanks Olaf. This is a thought that just came to me. With the low compression readings I posted earlier, would that mean a rebuild is in the nearish future for my engine? Would that be worn rings?

Cody

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Old truck: 82 D150 225, 2bbl, dutra duals, 2.5" straight pipe to dual 2.5" tail pipes. Mud tires, 4spd, old forest service truck.
Current truck: 98.5 Ram 2500 ccsb, sport, 24v cummins, 5spd, 4.5" lift, 35's, 5" straight pipe.

Ross, '78 factory manual says:

Minimum compression with engine warm, spark plugs removed, wide open throttle: 100 psi

Maximum allowed variation between cylinders: 25 psi

Olaf.

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Aspenized

That's what my factory service manual says too. So once it goes below those specks it time to rebuild?

Cody

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Old truck: 82 D150 225, 2bbl, dutra duals, 2.5" straight pipe to dual 2.5" tail pipes. Mud tires, 4spd, old forest service truck.
Current truck: 98.5 Ram 2500 ccsb, sport, 24v cummins, 5spd, 4.5" lift, 35's, 5" straight pipe.