home register FAQ memberlist calendar

Go Back   Turbobricks Forums > Mechanical > performance & modifications

Reply
 
Thread Tools Display Modes
Old 09-30-2018, 03:37 PM   #1
1971Gold142
Board Member
 
1971Gold142's Avatar
 
Join Date: Jul 2016
Location: Portland, OR
Default Is the Rallye Gauge water temp sensor specific - B20F?

Hello,

I have the Rallye Gauge cluster in my 1971 142E and as I just replaced the engine with a rebuilt B20F do I need to swap temp sensors for my gauge to work properly? I installed the engine with a standard temp sensor on the FI head but still have the old sensor that worked great.

Thanks in advance
__________________
71' 142E

Last edited by 1971Gold142; 09-30-2018 at 07:34 PM..
1971Gold142 is offline   Reply With Quote
Old 09-30-2018, 03:59 PM   #2
John V, outside agitator
Board Member
 
John V, outside agitator's Avatar
 
Join Date: Mar 2005
Location: Sleezattle, WA, USA
Default

clean the hex really good and look on the flats of the sender...Stamped in might be something like 0-150..
Look at gauge..is it the same range?
__________________
John Vanlandingham/JVAB Imports
Sleezattle WA, USA

--> CALL (206) 431-9696<----

www.rallyrace.net/jvab

www.rallyanarchy.com

Vive le Prole-le-ralliat

"When a man tells you that he got rich through hard work, ask him: 'Whose?'"
— Don Marquis
John V, outside agitator is online now   Reply With Quote
Old 09-30-2018, 04:09 PM   #3
Vincent Gagnon
Board Member
 
Vincent Gagnon's Avatar
 
Join Date: Sep 2015
Location: Quebec
Default

Quote:
Originally Posted by John V, outside agitator View Post
clean the hex really good and look on the flats of the sender...Stamped in might be something like 0-150..
Look at gauge..is it the same range?
0-120 if memory serves.
__________________


Quote:
Originally Posted by PromiseRing View Post
Had to google that one [...]
Quote:
Originally Posted by Lando View Post
Guys, save yourself the hassle and ignore deepfried.
Quote:
Originally Posted by Bready View Post
Beat it you wretched old fart...
Vincent Gagnon is online now   Reply With Quote
Old 09-30-2018, 04:39 PM   #4
1971Gold142
Board Member
 
1971Gold142's Avatar
 
Join Date: Jul 2016
Location: Portland, OR
Default

My old sensor that worked reads 120 MAX so I'll stick with that. Thanks!
1971Gold142 is offline   Reply With Quote
Old 09-30-2018, 04:50 PM   #5
John V, outside agitator
Board Member
 
John V, outside agitator's Avatar
 
Join Date: Mar 2005
Location: Sleezattle, WA, USA
Default

Quote:
Originally Posted by Vincent Gagnon View Post
0-120 if memory serves.

Well the big thing is does the marks on the sender match --0-120 or 0-150, whadd EVAR.
John V, outside agitator is online now   Reply With Quote
Old 09-30-2018, 04:53 PM   #6
John V, outside agitator
Board Member
 
John V, outside agitator's Avatar
 
Join Date: Mar 2005
Location: Sleezattle, WA, USA
Default

Quote:
Originally Posted by 1971Gold142 View Post
My old sensor that worked reads 120 MAX so I'll stick with that. Thanks!


Good. that's why we should stick with VDO or Moto-meter..they mark their senders on the flat of the hex...even stock idiot light for oil pressure senders ---in metric so 0,4-0,6 bar
John V, outside agitator is online now   Reply With Quote
Old 09-30-2018, 07:07 PM   #7
hiperfauto
Board Member
 
hiperfauto's Avatar
 
Join Date: Nov 2011
Location: So Cal
Default

The temp sensor, oil pressure sender and fuel sender are specific to the Rallye cluster. Only the oil pressure sender is readily available.

hiperfauto is online now   Reply With Quote
Old 09-30-2018, 07:35 PM   #8
1971Gold142
Board Member
 
1971Gold142's Avatar
 
Join Date: Jul 2016
Location: Portland, OR
Default

Great info hiperfauto!
1971Gold142 is offline   Reply With Quote
Old 09-30-2018, 08:28 PM   #9
John V, outside agitator
Board Member
 
John V, outside agitator's Avatar
 
Join Date: Mar 2005
Location: Sleezattle, WA, USA
Default

Quote:
Originally Posted by hiperfauto View Post
The temp sensor, oil pressure sender and fuel sender are specific to the Rallye cluster. Only the oil pressure sender is readily available.

Aside from the lack of a little tiny Saab logo, those look identical to the same things in a Saab "De Lux" instrument cluster of the same generation....All of them..

And a sender is a sender...
John V, outside agitator is online now   Reply With Quote
Old 09-30-2018, 09:02 PM   #10
hiperfauto
Board Member
 
hiperfauto's Avatar
 
Join Date: Nov 2011
Location: So Cal
Default

Considering the 4 gauge GT cluster works with all the stock senders, I'd say a sender is not a sender. The fuel gauge will work backwards on a Rallye cluster with stock sender and I doubt Volvo would have sold a special temp sender if the stock one worked.

http://forums.turbobricks.com/showthread.php?t=309835
hiperfauto is online now   Reply With Quote
Old 10-04-2018, 08:07 AM   #11
OttoB
Board Member
 
Join Date: Aug 2006
Location: E(Seattle!Vancouver! San Francisco!LA!) Helsinski
Default Sensor values for R-Soprt, Rallye and VDO gauges

I made measurements with 12,5 V for Rallye and VDO Series 1 water temp gauges. For R-Sport I bypassed that voltage regulator and after couple tests 7,5 V supply voltage was found to be ok.

Potentiometer simulated the sensor

VDO Series1 Water
Temp Ohm
40 103
80 48,6
100 30,7
120 19,7

Rallye 12,5 V
Temp (C) ohm
C 40 104
1. 71,2 60
2. 99,2 32
Red/black 110 25
H 120 20

R-Sport 7,5V
temp ohm
50 90
80 50
100 30
120 21

So use standard VDO sensor with 120C stamping on hex, or sensor from 73-> 140, with ->72 sensor reagings on the gauge will be lower.
OttoB is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On

Forum Jump


All times are GMT -4. The time now is 03:07 PM.

Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2018, vBulletin Solutions Inc.