On our '90 745, the sensor was in the top of the radiator on the right side, rear.

When the original fan seized, I had just put a new Volvo fan in our '90 744 TI and was getting rid of the wagon, so I found an aftermarket fan nearly the exact size as the Volvo one.

I attached the fan to the shroud with about 8 pieces of repair wire - It fit and looked quite nice.

The fan was reversible, so that care had to be taken to have it rotate in the proper direction.

Why bother.
Better spent time(really none) Dollars? A 3 Row HD Radiator.

Done this before and my advice is that unless your adding a turbo and need room for an intercooler/etc its hardly worth the effort. The mechanical fan is reliable and contributes to the durability of the b230.

Hi,

You should contact Mr Nabisco. He is showing off a bunch of his modifications at the location below.
He can give you the pros and cons of doing it. One being trying to sell them as a group package.

https://newyork.craigslist.org/brk/cto/d/volvo-240-wagon-5-speed/6385259239.html

I'm sure he would sell you everything around the fan and behind it along with his extra ponies, he bragging about.

This is to Mr. Nabisco for the most part. I do not intend to insult him but just tell my perspective.

He has spent a lot of money on the thrills of modifying things. This while the most of us lose our money doing normal maintenance items especially, over the years paying someone else to do the work.
It all ends up being some money not recoverable.
These things are paid for at a retail level and later sold at the wholesale level. It's life, Just like for our nations farmers. They Pay retail for seeds and farm equipment. Then in turn, sell the end result to wholesale bidders or loose out at an auction.
Our farmers must like what do and I'm thankful.

There are those who are looking a normal car that exhibits itself as being well taking care of. Most of these people pay up better to avoid the fanfares of surprises. That's me for the most part as I try to appreciate someone's effort to keep things nice against Father Time!
I modify things a liitle but I appreciate originality.

Then there is a lot smaller group of consumers that Mr. Nabisco and maybe you are in. This makes the aftermarket go round and untilizes innovational ideas. Electric fans or coolant recovery bottles were not on earlier cars.
It's not all bad if you realize some limits.

The limit is just you have to find that person who is different enough to want an orange or purple car. That's a little exaggerated but manufactures spend big bucks on building cars that fit the largest crowd of buyers on the target plate. There are compromises made throughout the whole car so in short of building your own car at a greater expense, than most hobbies afford, losses have to be expected.

All said and done cars are the worst investment you can ever make in life with money. So as long as you play with them, like the toys of our youth, we live past them and that makes them worthy to us!

Phil

Everything (and more) that you ever wanted to know about the possibilities....

http://forums.turbobricks.com/showthread.php?t=1572&highlight=electric+fan