944 Battery Conection to 3 terminal blocks
03-25-2007, 12:36 AM
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944 Battery Conection to 3 terminal blocks
Hi. I have an 83 model 944 with some electrical problems. The battery is not charging even after i had the alternator replaced.
Today-I noticed in the battery area that the positive wiring has 3 terminal blocks about 1 inch by 1 inch in size. Seems that they are corroded badly. I measured 10Meg resistance between the two lugs on the block which tells me that the block is an "open".
Are they just passive wiring blocks?
There are also three small 1 inch by 1 inch boxes in the vicinity. I assume the terminal blocks are supposed to sit in these small mounted boxes??
Please help...
Vince
Today-I noticed in the battery area that the positive wiring has 3 terminal blocks about 1 inch by 1 inch in size. Seems that they are corroded badly. I measured 10Meg resistance between the two lugs on the block which tells me that the block is an "open".
Are they just passive wiring blocks?There are also three small 1 inch by 1 inch boxes in the vicinity. I assume the terminal blocks are supposed to sit in these small mounted boxes??
Please help...
Vince
03-25-2007, 12:47 AM
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Welcome to Rennlist. The corrosion on a cable can travel down the copper for quite a ways and you can't see it under the insulation. This results in very high resistance, especially when hot. Replace all your start/charge/ground cables now and you can get rid of a common issue on these cars. I've never seen the terminal blocks you are talking about unless they are the standard type used for higher end stereo equipment. The OE cables are encapsulated at the battery terminals with no splices or 'boxes'.
03-25-2007, 01:31 AM
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Alternator wire goes to the large post on the starter solenoid. The large cable from the starter solenoid goes to the battery. This is the path the electrons take to charge the battery. In some cases I've run a ten gauge wire directly from the alternator to the battery eliminating the one going to the starter.
If your battery has the clamp the large cable terminal then you need to replace it and the large cable with the proper soldered to the terminal cable. The three red wires at the battery positive terminal take the power into the car for everything. These can corrode at the terminal and cause lots of problems including engine stumbling. The DME needs it's clean electrons! Also check the ground straps from the top back of the engine to the chassis and the ground from the battery to the chassis. Clean the mating surfaces of all the connections.
If your battery has the clamp the large cable terminal then you need to replace it and the large cable with the proper soldered to the terminal cable. The three red wires at the battery positive terminal take the power into the car for everything. These can corrode at the terminal and cause lots of problems including engine stumbling. The DME needs it's clean electrons! Also check the ground straps from the top back of the engine to the chassis and the ground from the battery to the chassis. Clean the mating surfaces of all the connections.
03-25-2007, 10:04 AM
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Originally Posted by KuHL 951
Welcome to Rennlist. The corrosion on a cable can travel down the copper for quite a ways and you can't see it under the insulation. This results in very high resistance, especially when hot. Replace all your start/charge/ground cables now and you can get rid of a common issue on these cars. I've never seen the terminal blocks you are talking about unless they are the standard type used for higher end stereo equipment. The OE cables are encapsulated at the battery terminals with no splices or 'boxes'.
