Posted November 14, 20222 yr comment_647227 Still uncertain if this ahmeter is reading correctly. I know fuel does read correctly. Asides from this, the plastic lens is turning so i need to use some kind of glue to stick it as the factory. WHich is the safest method for removing the gauge without damaging any wire or leds? SHould i remove it through the glove box or through the front air conditioner panel? Link to comment https://www.classiczcars.com/forums/topic/67974-1972-240z-ahmeter-fuel-gauge-replacement/ Share on other sites More sharing options...
November 16, 20222 yr comment_647257 Remove the gauge after moving the heater control panel away from dash... the 4 heater cables has to be disconnected from the heater box before the control panel can be pull far enough. You will be able to get to the amp/fuel gauge and clock and oil/temp gauge through the opening. Edited November 16, 20222 yr by yippi427 Link to comment https://www.classiczcars.com/forums/topic/67974-1972-240z-ahmeter-fuel-gauge-replacement/#findComment-647257 Share on other sites More sharing options...
November 16, 20222 yr comment_647258 This is what it looks like from the rear. Make sure you disconnect the battery. If you zoom in you can see the one bolt that holds each gauge in place. HTH Link to comment https://www.classiczcars.com/forums/topic/67974-1972-240z-ahmeter-fuel-gauge-replacement/#findComment-647258 Share on other sites More sharing options...
November 17, 20222 yr Author comment_647268 On 11/15/2022 at 9:30 PM, yippi427 said: Remove the gauge after moving the heater control panel away from dash... the 4 heater cables has to be disconnected from the heater box before the control panel can be pull far enough. You will be able to get to the amp/fuel gauge and clock and oil/temp gauge through the opening. Yes but what is the correct procedure to remove this gauge? i dont have any heater box. This was removed when the gen mini air conditioner kit was installed under the dash. How many cables will i need to disconnect to remove the gauge without damaging any cable or causing any shorts? Link to comment https://www.classiczcars.com/forums/topic/67974-1972-240z-ahmeter-fuel-gauge-replacement/#findComment-647268 Share on other sites More sharing options...
November 17, 20222 yr comment_647271 Do you still have a heater control panel with sliding levers like the pic? If you do not you still have to remove your present panel to get to the gauges. The amp/fuel gauge is secure with 1 screw, the gauge has 3 wire harness with plug that plug into dash harness and 2 wires with connect to the amp gauge.0 Link to comment https://www.classiczcars.com/forums/topic/67974-1972-240z-ahmeter-fuel-gauge-replacement/#findComment-647271 Share on other sites More sharing options...
November 17, 20222 yr comment_647272 If you look at the pic of the back of dash posted by emccallum ..look at the amp/fuel gauge it is attach with 1 screw to a bracket. Remove the 1 screw and the gauge will be ready to come out after you unplug the 3 wire plug and 2 amp meter wires connected by nuts. Remember to disconnect your negative battery cable before working under your dash alway. Edited November 17, 20222 yr by yippi427 Link to comment https://www.classiczcars.com/forums/topic/67974-1972-240z-ahmeter-fuel-gauge-replacement/#findComment-647272 Share on other sites More sharing options...
November 18, 20222 yr Author comment_647294 I guess mine is fried also. Needle is stuck at 3/4 positive side. If you turn the engine off it still remains there. Any clues on how to solve this problem. The fuel section works perfectly. Its a pitty. Edited November 18, 20222 yr by jalexquijano Link to comment https://www.classiczcars.com/forums/topic/67974-1972-240z-ahmeter-fuel-gauge-replacement/#findComment-647294 Share on other sites More sharing options...
November 18, 20222 yr Author comment_647318 On 11/17/2022 at 2:03 AM, yippi427 said: Do you still have a heater control panel with sliding levers like the pic? If you do not you still have to remove your present panel to get to the gauges. The amp/fuel gauge is secure with 1 screw, the gauge has 3 wire harness with plug that plug into dash harness and 2 wires with connect to the amp gauge.0 How do you disconnect this upper 2 boots from the heater vent access. I have one spare out of the car and its quite a challenge to remove them. Imagine from the inside of the dash where its dark and just relying on braille system? Link to comment https://www.classiczcars.com/forums/topic/67974-1972-240z-ahmeter-fuel-gauge-replacement/#findComment-647318 Share on other sites More sharing options...
November 18, 20222 yr comment_647319 Once you remove the screw that holds the gauge in place, you should have enough slack to give you a little better access. Those boots can be stiff and tough to release after 45 years Link to comment https://www.classiczcars.com/forums/topic/67974-1972-240z-ahmeter-fuel-gauge-replacement/#findComment-647319 Share on other sites More sharing options...
November 19, 20222 yr comment_647329 Have you tried putting strong tape rolled outwards sticking to the ahm lens, pulling it out off the needle? I bought one that some dip $^!# tapped on the lense of the oil pressure gauge and knocked it down onto the needle causing it to be all funked up. After I got the lense off the needle it was showing good oil pressure. Link to comment https://www.classiczcars.com/forums/topic/67974-1972-240z-ahmeter-fuel-gauge-replacement/#findComment-647329 Share on other sites More sharing options...
November 19, 20222 yr Author comment_647330 27 minutes ago, siteunseen said: Have you tried putting strong tape rolled outwards sticking to the ahm lens, pulling it out off the needle? I bought one that some dip $^!# tapped on the lense of the oil pressure gauge and knocked it down onto the needle causing it to be all funked up. After I got the lense off the needle it was showing good oil pressure. The problem is not with the fuel gauge, it is on the ampmeter. Needle is stuck at the end of the positivr side as shown in the picture. I even disconnect the battery poles twice and the needle is stuck. I banged the dash and nothing. I am removing the instrument at the shop where they fixed the short. Idiots. I guess they fried the circuit somehow. Link to comment https://www.classiczcars.com/forums/topic/67974-1972-240z-ahmeter-fuel-gauge-replacement/#findComment-647330 Share on other sites More sharing options...
November 19, 20222 yr comment_647331 Get a small suction cup. Lick the inside of the cup and gently see if it adheres to the glass. Once pulled forward see if the gauge goes back to normal. In a shop you never know where there hands are going especially if you’re working under a Z dash. A finger or thumb may have pushed that glass in. My two cents… Link to comment https://www.classiczcars.com/forums/topic/67974-1972-240z-ahmeter-fuel-gauge-replacement/#findComment-647331 Share on other sites More sharing options...
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