Alfa Romeo Bulletin Board & Forums - View Single Post - Screw-in Thermostat: Convert to...?
View Single Post
post #18 of (permalink) Old 05-02-2019, 07:02 AM Thread Starter
Senior Member
Gold Subscriber
bruce1976spider's Avatar
Join Date: Aug 2016
Location: Chardon, Ohio
Posts: 476
Here's a couple of measurements - the 40mm screw-in style, and a later model drop in thermostat. I happen to have both...
The tops of the threads on the brass screw-in are just a bit under 39mm, and the diameter of the drop in is about 54mm

The 45mm thermostat is still in place - a 45mm socket arrives today.
Attached Images

50 years from now - how are we going to restore a "classic" microprocessor based modern car?? Alfas - 1980 Spider, 1987 Milano, 1976 Spider
bruce1976spider is offline  
For the best viewing experience please update your browser to Google Chrome