Join Date: Nov 2001
Thanked 5 Times in 5 Posts
Re: Stuck throttle plates on MC2100
Well, I didnít want to be the first bearer of bad news so I waited for somebody else to break it to you. All is not lost though.
Squirt it with PB Blaster several times where the shafts go through the base. Squirt it again tomorrow and the next day. Then try to move the shaft. If it doesnít move by hand squirt it again and let it set another day. Eventually the shaft will move DO NOT USE HEAT.
Now that you got the shaft to move, you have a core. Reassemble it and take it to AutoWhatever and trade it in on a rebuilt. From where you are at, you will probably never get it right. You might have a vacuum leak around the shafts, you may never get the plates back in close to right, and/or you may have slight binding of the shaft and/or throttle plates.
To remove the plates, you must have removed the screws that were bradded over on the ends to keep them tight. If, as most people do, you just unscrewed them, you distorted that little bit of threads in the shafts.
Itís just too much trouble to get it back right from where you are. To do it right, youíd need a new shaft, plates, and screws. Then you would then have to drill out the shaft holes in the base plate and install bushings. Then ALL of that is assuming that there is no pitting of the bores in the base plate.