Tapping M52 Cylinder head for E30 browm Temp Sender

Post Sun Jun 30, 2019 2:09 pm

Hi,
I am looking to drill and tap (M14x1.5) the cylinder at the blank location shown in the picture below to accept E30 Brown temp sender . Before embarking on this I would like advise if this is approach is a good idea or not?

DSC_0976.JPG

Option 2, can I install the following line with the top radiator hose for installing the E30 temp sender?

DSC_0978.JPG

Any advice greatly appreciated

Post Sun Jun 30, 2019 3:15 pm

You would need to stop swarf going inside when you drill through and then the same when tapping. Next to impossible I would have thought.

Post Tue Jul 02, 2019 5:55 pm

on the right hand side of the pic is a hose , take this off it's not needed. then undo the fitting the pipe was attached to and remove it from the head, take this fitting with an e30 brown temp sensor to an engineering firm or an engine builders near you and get them to turn the thread on the sensor down to match the threads on the fitting you removed.

Post Wed Jul 03, 2019 8:19 am

As above, or just send me £25 and I can post you a brand new sensor with the correct thread ready to fit

Post Wed Jul 03, 2019 4:56 pm

magpie wrote: ↑
Tue Jul 02, 2019 5:55 pm
on the right hand side of the pic is a hose , take this off it's not needed. then undo the fitting the pipe was attached to and remove it from the head, take this fitting with an e30 brown temp sensor to an engineering firm or an engine builders near you and get them to turn the thread on the sensor down to match the threads on the fitting you removed.

Thank you for the advice, this what I was thinking of doing after doing some more research on the internet. With regards to removing the hose pipe, this is currently connected to the throttle body, do I not need this or do I just not connect the throttle to the water system?

Post Wed Jul 03, 2019 4:59 pm

DanThe wrote: ↑
Wed Jul 03, 2019 8:19 am
As above, or just send me £25 and I can post you a brand new sensor with the correct thread ready to fit

I have managed to re-grind the existing temp sensor and tapped the correct thread on it (M12x1.5). If I get any issues with I will come back to you to purchase the sensor. Below is the picture of the finished sensor with the correct thread.