Upper Tension Assembly - Singer Part # 422403-455

I think I got a bum part :( The pin was way too long. After carefully shaving down about 1/3 of its length to where it fits into my Singer 7110 and the pin is not touched when the presser foot is down, the tension is not right. Nothing was moved, shifted, or taken apart during any step of this process.

The upper tension assembly worked perfectly once I figured out how to pretension it. The new assembly replaced one from the late 1970's that had it's internal plastic gear broken and had worn out springs.

Appearance-wise it's not an exact match to what was originally on my 1980 Singer machine, but my sewing machine repairman was finally able to fix the tension.