Volvo RWD 200 Forum

INDEX FOR 1/2026(CURRENT) INDEX FOR 1/2003 200 INDEX

[<<]  [>>]


 VIEW    REPLY TO THIS MESSAGE    PRINT   SAVE 

What is "r' ratio on face of mechanical speedo? 200 1979

posted by  sutherml on  Wed May 25 07:29 CST 2011
Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS] RSS Feed     [IGNORE ALL POSTS]
last visit: Sat Jun 29 19:15 CST 2013
[RELATED]

My 1979 244 BW55-tranny sedan mechanical speedo is making loud annoying gear(?) noises which probably means its worn out at 555,000 km (350,000 miles).

I managed to source a speedo out of a 1979 265 (only 142,000 km, 88,000 miles) but only after buying it I noticed that it has "r 0.585" on the speedo front but mine is "r 0.605".

There is only a 3% difference between the "r" ratios which seems close enough, but I can't find out what "r" is and whether my new speedo reading will be a bit too high or too low.

All I could find on Internet is that (most?) metric speedos have "r of 0.605" and imperial speedos have "r" 0.980"?






THREADED THREADED EXPANDED FLAT PRINT ALL
MESSAGES IN THIS THREAD

New What is &quot;r' ratio on face of mechanical speedo? [200][1979]
posted by  sutherml  on Wed May 25 07:29 CST 2011 >


<< < > >>



©Jarrod Stenberg 1997-2022. All material except where indicated.


All participants agree to these terms.

Brickboard.com is not affiliated with nor sponsored by AB Volvo, Volvo Car Corporation, Volvo Cars of North America, Inc. or Ford Motor Company. Brickboard.com is a Volvo owner/enthusiast site, similar to a club, and does not intend to pose as an official Volvo site. The official Volvo site can be found here.