Remove it, skim it, replace with new gasket

Worth checking the manifold bolts again, particularly No 1 stud at the front, it’s not unknown for them to snap but stay rusted in the manifold so it’s still looks o.k. Also look for black sooty streaks.

Hi All, For info, all the components for the well known TM2 temp alarm with oil level alarm have been used up. The TM2 has been replaced by the TM1 temp alarm also with oil level alarm. The TM1 does everything just the same but the red readout has been replaced with with a normal black on white lcd ...

Don’t be put off from fitting a sensor screw to the tank. 10s of thousand have now been fitted and not a single problem….also the alarms have proved to be extremely reliable over many years..

No 1 MAnifold stud ???

Phone Jo now, and see what she can do,,, ask for ‘dads discount’

When would you need it by

It only takes 30mins to fit a coolant alarm if you have the tools to hand....
You don’t lose any coolant fitting one of ours..

Do you have a coolant alarm fitted cos that should have given you early warning.

If the tank was empty and you just refilled it you will almost certainly have trapped air in the cylinder head and the result of that can be very bad news. Needs checking out ASAP by a specialist.

Northern Bongolow hnows what his stuff.......but I always had 0.9 on tank and 1.1 on rad

I think that tank cap should be 0.9, 1.1 on the Rad if your rad is the type that needs a pressure.....


You want the tank to release before the rad.........clean the screw when the alarm takes ages to Turn off when starting.

The temp gauge could be letting you know your system is due a overhaul, if you didn’t have it you could be driving in ignorance thinking all is well until it all goes to rat shit !

Stevievee wrote: ↑Tue May 18, 2021 8:25 am Same view... Straight through that hatch on previous photo... I am now really confused!! I'm even starting to doubt I actually own a Mazda Bongo!!

Don’t know what’s going on....the 2 x photos you posted (side by side) are not of the same area.

Yep!