MG MGB and MGB GT Tech Talk
I need to replace the combo oli pressure/water temp gauge in my 74 MGB. I can see the back of the gauge if I remove the dash vent, but there is no way to get tools or even a hand back there to loosen the mounting nuts. Is there a trick to this, or is this going to turn into a big job?
Check out this... I found it on this website regarding the guage problems..
Gauge Renovation [Oct 20, 2002]
Not much else to do, so I'm starting work on the dash. The only gauge I hadn't renovated was the dual coolant temperature & oil pressure gauge because you have to disconnect the oil and water lines to draw the back of the gauge off. Now that the dash is out of the car though, it was easy. Three small screws each hold the separate gauge mechanisms to the side of the housing. I can then be very carefully drawn away. Then I masked off the housing and painted the inside high gloss white, like I had done to the rest of my gauges. After this treatment the night visibility of the gauges is way better (ie readable). I discarded the translucent blue filter ring for the same reason, since the blue can be easily reproduced by painting the instrument bulbs. After assembly, I calibrated the temperature readings - click on the pictures for details.
run your hand in flat....untill you get to the guage, then unscrew the mounting bolts, let them fall to the floor, flatten your hand again and withdraw. I learned this from a friend in the chimp business, Goodall was her name, she put a bunch of bananas in a cage and as the chimp reached in for them she move into capture them, they would not let go of the bananas and hence could not get their hand back through the bars of the cage. the bottome and back of MG 's are like that.
like the old squirrel traps? they won't let go of the nut so they'll stay stuck in the trap until you come by. now, though doc jane proved they were a bit smarter than that?
