Rebuilding Throttle Bodies, New service. No more sticky throttle! Options

[Bartlett 914]

Recently I got tired of my sticky uneven throttle body. I was stuck in construction traffic and inching forward became almost impossible. I decided to repair mine. The throttle body shaft has no bearing. It is steel against aluminum. In time the round hole becomes an oval one. This makes the throttle plate operate erratically. It even sticks when in the closed position.

I made a setup in my machine shop to repair these. I accurately locate the shaft hole and boar it to fit an oilite bushing. I have done a dozen of these so far. In my car, the difference was incredible. I expected the operation off idle to be improved which it did but I also found the operation was smoother through the operating range.

I decided I could offer this as a service. In this, I will clean the body and install the new bushings. This operation requires special machining in order to keep things aligned properly. At this point, I am not plating anything. I am only cleaning the steel components. I may offer plated parts later but not at this time. I will need a core in exchange for one I send out or I can repair yours but there will be a delay in doing this. There are some that have 2 ports and some with only one. Some have a built in return spring and the other does not. You can see the differences in the ones pictured.

If you are interested in this service, My starting price is $125.00 plus shipping

[McMark]

Got a spare TB stripped down. Wire brushed all the steel parts. Ready for zinc plating. Polished the throttle plate for fun. And soda blasted the body. Once I get the steel back then it'll head your way. It actually feels like it's in pretty good shape, but I'll send it along anyway and wait for your assessment. (IMG:style_emoticons/default/smilie_pokal.gif)

[Bartlett 914]

Got a spare TB stripped down. Wire brushed all the steel parts. Ready for zinc plating. Polished the throttle plate for fun. And soda blasted the body. Once I get the steel back then it'll head your way. It actually feels like it's in pretty good shape, but I'll send it along anyway and wait for your assessment. (IMG:style_emoticons/default/smilie_pokal.gif)

Hi Mark

That look really nice. I realized more people are going to expect a better finish that what I pictured. My camera does seem to make things look worse than they are. I have started to glass bead blast the parts. They are looking better. I am also replacing the nut with a silver colored zinc plated nut. I am also replacing the 2 washers with Stainless steel ones. These are also silver but will never corrode and are very smooth. I am looking into plating.

[euro911]

Hi Mark

That look really nice. I realized more people are going to expect a better finish that what I pictured. My camera does seem to make things look worse than they are. I have started to glass bead blast the parts. They are looking better. I am also replacing the nut with a silver colored zinc plated nut. I am also replacing the 2 washers with Stainless steel ones. These are also silver but will never corrode and are very smooth. I am looking into plating.

Need to be vigilant with thorough cleaning when bead blasting anything that will introduce particles into a motor's internals. Glass beads will destroy a motor's internals.

May I suggest soda blasting as Mark has done? I've seen motors destroyed due to captured, then dislodged glass beads.

[Bartlett 914]

Hi Mark

That look really nice. I realized more people are going to expect a better finish that what I pictured. My camera does seem to make things look worse than they are. I have started to glass bead blast the parts. They are looking better. I am also replacing the nut with a silver colored zinc plated nut. I am also replacing the 2 washers with Stainless steel ones. These are also silver but will never corrode and are very smooth. I am looking into plating.

Need to be vigilant with thorough cleaning when bead blasting anything that will introduce particles into a motor's internals. Glass beads will destroy a motor's internals.

May I suggest soda blasting as Mark has done? I've seen motors destroyed due to captured, then dislodged glass beads.

I too was concerned about this. I also have soda blasting and it did an OK job. I am bead blasting the steel parts. The bodies I have blasted are followed up with a real cleaning with soap and water. I am sure they are clean

[euro911]

Need to be vigilant with thorough cleaning when bead blasting anything that will introduce particles into a motor's internals. Glass beads will destroy a motor's internals.

May I suggest soda blasting as Mark has done? I've seen motors destroyed due to captured, then dislodged glass beads.

I too was concerned about this. I also have soda blasting and it did an OK job. I am bead blasting the steel parts. The bodies I have blasted are followed up with a real cleaning with soap and water. I am sure they are clean

Maybe a shake session in an ultrasonic tank (HF sells an fairly inexpensive one) would dislodge any captured beads?

[Bartlett 914]

Need to be vigilant with thorough cleaning when bead blasting anything that will introduce particles into a motor's internals. Glass beads will destroy a motor's internals.

May I suggest soda blasting as Mark has done? I've seen motors destroyed due to captured, then dislodged glass beads.

I too was concerned about this. I also have soda blasting and it did an OK job. I am bead blasting the steel parts. The bodies I have blasted are followed up with a real cleaning with soap and water. I am sure they are clean

Maybe a shake session in an ultrasonic tank (HF sells an fairly inexpensive one) would dislodge any captured beads?

Good Idea. I have an expensive one. I will see if it fits