Hi Burton, I went through all of this about a year ago and it turned into a bit of a sh*t show with one thing leading to another … a new too tight fan belt resulting in a destroyed generator having to be replaced with an alternator etc.
The dimensional information for pulley diameters and pulley centre distances for my car are contained in this thread Tip of the day - R&R the water pump and ... the fan belt stretcher - #9 by Lopena .
A couple of comments:
- I am not sure how to embed a thread link, so if the above does not work, search on the word stretcher which is in the thread title.
- The dimensions were taken from my car which must have at least one odd part as the “proper” fan belt would not fit correctly.
Cheers
Steve