Temperature Sender Location on 948

[oilypaws]

Hi,

I'm thinking of adding a temperature gauge to my 948 engine (1962), which never had one. I have a nice little gauge and sender left over from another project.

Is there a standard location in the 948 block for the sender (i.e. a hole with a plug in it)? I note that there is something like that just below the oil pressure switch (behind the distributor) but I am wary about unscrewing it without knowing what it is!

If there isn't a handy hole already, how are they usually installed? There's a blank plate on the back of the head where the heater hose would come off - I was thinking I could drill a hole in that (at least until I add a heater!).

Thanks for suggestions!

[brucek]

Don't be tempted to try and put your temp sender in behind the dizzy - the nut you can see is the oil pressure relief valve and nothing to do with the cooling system. 948 - and for that matter, 803 engines are not easy to fit a sender to as there are no tapped locations to use. Simplest fix is to source a thermostat housing with a temp sender tapped in - something like this: http://www.mmoc.org.uk/viewtopic.php?f=13&t=22385 If you look carefully at your next autojumble, you should be able to find one

[bmcecosse]

Easiest by far is to use a section of bottom hose with the T outlet intended for the heater return. Use this as a top hose - shorten the T and fit the temp sender in so it partly protrudes in to the water flow. If it is an electrical gauge - you will need to run an earth wire to the sender.

[Trickydicky]

I added a Temp Gauge to my 948cc engine, here is the post and with added pictures
http://www.mmoc.org.uk/viewtopic.php?f=11&t=46293

I have to admit after fitting it I would say a Oil Pressure Gauge is more usefull....

[bmcecosse]

An oil pressure gauge is indeed the most useful gauge....followed by an ammeter. The engine soon lets you know if it is boiling......

[JOWETTJAVELIN]

Don't waste money on a special thermostat housing - I bought one for £1 and later sold it for nearly £30 to some poor misguided soul.

Buy a bottom hose for a 1098, cut it so it'll fit in place of the standard top hose and trim the heater take-off to fit the temp. sender, securing with a Jubilee clip. This is the system I used for my 803 and have never had any trouble.

[oilypaws]

Thanks for the suggestions! Glad I didn't undo the tempting bolt behind the distributor...

[JOWETTJAVELIN]

Yes - leave that nut alone.