Si water temperature sender

[DaveSeries1]

Hope someone can help. I've given up trying to find a working temp sensor for the early Alpines, seems no one has one. My question is, does anyone know the approximate difference in the reading of an early sensor to a later sensor? Does a newer one read higher or lower? I'm going to have to put a newer one in and compensate for the difference. Some kind of reading is better than none. Thanks for any help, Dave

 

[alpine_64]

Hope someone can help. I've given up trying to find a working temp sensor for the early Alpines, seems no one has one. My question is, does anyone know the approximate difference in the reading of an early sensor to a later sensor? Does a newer one read higher or lower? I'm going to have to put a newer one in and compensate for the difference. Some kind of reading is better than none. Thanks for any help, Dave

Have you tried the UK sunbeam suplliers? They seem to stock a lot of early seires mechanical parts....
Stateside maybe members @65sunbeam , @twautomotive , @Jaars , @volvoguys might have a lead.

 

[Tom H]

Dave,

The early gauges work on a totally different principle. The sensors for late gauges are not at all close enough to be useful for early series. The original sender for early gauges was a 4800 , and I thought supplier were offering 5720 as a replacement. Those are quite close.

Tom


.

 

[hartmandm]

Here's some info Tom Hayden sent me a while ago about a replacement sender:

The temperature sender is Speedy Spares part # 52700 with the number 3800/00 stamped on it

Here are a few of the test readings:

Thermometer Reading	Sender Resistance	Gauge Reading
Room temp (72F ?)	318 ohms
170	43	160
180	35	169
185	32	175
190	29	180
195	25	185
200	24	190
210	22	205

Mike

 

[alpine_64]

The temperature sender is Speedy Spares part # 52700 with the number 3800/00 stamped on it


Mike

Hurry on the purchase... Speedy spares will close in March 2024

 

[hartmandm]

Permanent closure?

 

[hartmandm]

Previous thread on this topic with lots of great info: https://forum.sunbeamalpine.org/ind...eries-1-2-temperature-gauge-adjustable.26873/

Mike

 

[alpine_64]

Permanent closure?

Unless someone buys it .. seems so

 

[volvoguys]

Have you tried the UK sunbeam suplliers? They seem to stock a lot of early seires mechanical parts....
Stateside maybe members @65sunbeam , @twautomotive , @Jaars , @volvoguys might have a lead.

Thanks for the plug, Michael. Sorry, but I don't have that sender.

Mark ..... volvoguys

 

[DaveSeries1]

Thank you, guys for all the help. I'll see if I can get in touch with Speedy Spares and see what they can do. Dave