Re: Temperature Gauge 1939 120
Posted by HH56 On 2018/3/6 12:16:10
I wish I could help on the specifics of the 39 but don't have personal experience taking one apart.
I can say that probably starting with the 120 and maybe earlier then going thru 47 the instruments were attached to mounting plates which in turn were attached to the cluster and were accessed from the rear. Taking an entire dash panel or cluster out is possible on some models but the amount of wiring you would need to disconnect in order to pull it out very far would vary and with some switch and component locations protruding behind the dash even accessing the screws holding the panels could be an adventure.
The shape of the plates and pairing of gauges varied with models and years but all were typically 2 gauges mounted on one plate and the plate was held to the cluster by screws in the corners. In 48 they started using single gauges individually mounted to the cluster but still accessed from the rear.
Here are some photos of a 42 gauge pair and a 47 cluster. It shows the typical mounting plates used 40 and beyond and probably 39 too but I cannot say for sure on 39. In the case of the 42 someone has already destroyed the instruments by cutting the tubing to remove the plate rather than pulling the tubing thru into the passenger compartment and then removing the complete assy. The gauges can probably be repaired but note the single nut holding each gauge to the plate. By undoing the nut the gauge frees from the plate and can be removed. That is what I was mentioning when saying the entire bulb and tubing needs to be pulled inside and then thru the mounting plate.
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I can say that probably starting with the 120 and maybe earlier then going thru 47 the instruments were attached to mounting plates which in turn were attached to the cluster and were accessed from the rear. Taking an entire dash panel or cluster out is possible on some models but the amount of wiring you would need to disconnect in order to pull it out very far would vary and with some switch and component locations protruding behind the dash even accessing the screws holding the panels could be an adventure.
The shape of the plates and pairing of gauges varied with models and years but all were typically 2 gauges mounted on one plate and the plate was held to the cluster by screws in the corners. In 48 they started using single gauges individually mounted to the cluster but still accessed from the rear.
Here are some photos of a 42 gauge pair and a 47 cluster. It shows the typical mounting plates used 40 and beyond and probably 39 too but I cannot say for sure on 39. In the case of the 42 someone has already destroyed the instruments by cutting the tubing to remove the plate rather than pulling the tubing thru into the passenger compartment and then removing the complete assy. The gauges can probably be repaired but note the single nut holding each gauge to the plate. By undoing the nut the gauge frees from the plate and can be removed. That is what I was mentioning when saying the entire bulb and tubing needs to be pulled inside and then thru the mounting plate.
Attach file:
(173.66 KB)
(88.85 KB)
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