• Hi Guest!
    You can help ensure that British Car Forum (BCF) continues to provide a great place to engage in the British car hobby! If you find BCF a beneficial community, please consider supporting our efforts with a subscription.
    There are some perks with a member upgrade!
    **Upgrade Now**
    (PS: Subscribers don't see this gawd-aweful banner
Tips
Tips

temp gauge substitute?

Share this page

NutmegCT

NutmegCT

Great Pumpkin
Bronze
Offline
The sensor is broken off in the engine (1960 Mercedes).

Is there such a critter as an add-on temp gauge? A device to monitor the engine coolant temp that doesn't use the original sensor unit? with readout on the dash?

Something like this:

https://www.fullwavemarine.com/tempgauge.html

PAY NO ATTENTION TO THE PICTURE ON THE UPPER LEFT OF THAT PAGE!!!!

Thanks.
Tom
 
My first question is why not remove the old sender and replace it?

To get actual coolant temperature, you need a probe that is in contact with the coolant. That generally means adding a hole someplace, which is typically pretty easy. Just drill & tap to a suitable size, some place that will reach into the water jacket, like maybe the water pump housing (away from the impeller of course), or bypass line. Sometimes you can add a tee to an existing fitting, like perhaps the heater line, but make sure it is close to where the coolant always circulates or you'll get a false reading when the heater is off.

Or to get surface temperature, there are a variety of "cylinder head" temperature gauges available.
 
Tom, all I saw on that site was a girl in a bikini, was there something else on there? Why can you not get the old one out of the engine?
 
they make a coupler for coolant lines with a bung in it I think

But I also ask the above question
 
Success! Using a 50/50 mixture of ATF and acetone, I was able to get the old sensor out of the block. Hallelujah.

Back to (relative) normal.

Thanks for the suggestions.
Tom
 
Back
Top