Triumph Tr 8 1980-1981 Banner Starting Bull 38Ah Battery Electrical Replace Part - TR8 Lower Engine Harness Replacement

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Went for a good drive on Sunday in the TR7. Abarth Strada 138A 1981-1987 Banner Starting Bull 44Ah Battery Replace somewhere for 3 hours and drove home at night.

Only got 10 miles as there was a voltage drop so I continued to drive and find a safe place to pull over before I lost all power.

Which I did and the car is fuel injected so the engine shut. No dash lights or any indication anything was wrong. Week before the drive I had the car on a 2 amp trickle charge for days and I think the battery is ok.

I did charge the battery when I got home and car started right up the next day. Took a look around in the engine compartment and saw a relatively new remand alternator. Haven't been able to check anything out yet so looking for suggestions as the where to start. Sounds like bad alternator or possibly the wires to the back of the alternator are loose. Start the car and put a test meter across the terminals on the battery. If its not charging, the number will drop slowly until the car dies.

The alternator should produce about A really bad battery can reduce this charging voltage. Google "battery state of charge". You will find charts for the battery voltage.

You should then read more than If it has Triumph Tr 8 1980-1981 Banner Starting Bull 38Ah Battery Electrical Replace Part much, your battery might be bad. You might also have something that is draining the battery. Recharge, then disconnect the negative terminal, and check after another 8 hours.

There is a large connector used with the red battery wire located near the battery. Have a look at it and clean it up. Use dielectric grease before reconnecting. If that connector is dirty it can prevent the alternator current from charging the battery.

I used to disconnect Triumph Tr 8 1980-1981 Banner Starting Bull 38Ah Battery Electrical Replace Part battery ground terminal with a car running when I was concerned over battery with an internal short Triumph Tr 8 1980-1981 Banner Starting Bull 38Ah Battery Electrical Replace Part a charging problem. If it died immediately I assumed the charging system was not up to snuff. That will not work with modern cars with electronic controls such as fuel injected Triumphs.

After Triumph Tr 8 1980-1981 Banner Starting Bull 38Ah Battery Electrical Replace Part the usual suspects and getting your car running again I would watch for a rapid voltage drop while turning on and off the headlights.

Maybe the lights were merely the critical current draw on a weak. But I would wonder if one of the motors to raise the headlights might have a problem. If your car is fine driving days and fails at night I would unplug the motors with the lights in the up position and see. Do you have any idea Triumph Tr 8 1980-1981 Banner Starting Bull 38Ah Battery Electrical Replace Part the PO sold this car to you, perhaps unresolved electrical gremlins?

I just did it with my FI Tr7. Start the car and disconnect the battery. If it stays running then the alternator is charging. If it dies then it's not. Since your car died while driving, it's most likely the alternator. While you are messing with the battery, do an "off key drain" test.

It'll let you know if there is battery drainage due to something being left on, like a trunk light. Ended up having to run a ground wire from the AC compressor electric pulley clutch back to the battery. A friend had the same issue with the Triumph Tr 8 1980-1981 Banner Starting Bull 38Ah Battery Electrical Replace Part cooling fans. Car would run great until water temperature turned the fans on. He ran a separate ground wire as well to correct the issue. I would use a meter setup on the battery, and with the car running, try every electric draw item on the car one at a time.

Ground issues have always been a big deal on British cars. I replaced my ground wires with heavier gauge copper and connectors running to the starter, engine block, and added one to the chassis. So far, no more issues. Poor electrical connectivity accounts for about Thanks for the replies. Friend gave me a Snap On analyzer today to try. Started the car with a volt meter attached and showed it wasn't charging. Came back 20 minutes later and it was charging Hooked up the analyzer and it said everything was normal.

Turned on lights and heater fan and charging at Triumph Tr 8 1980-1981 Banner Starting Bull 38Ah Battery Electrical Replace Part An intermittant electrical fault is the hallmark of a loose, dirty, corroded or otherwise compromised electrical connection Likely candidates are typically both battery terminal clamps, the connector for the large brown Triumph Tr 8 1980-1981 Banner Starting Bull 38Ah Battery Electrical Replace Part at the alternator, battery grounding point.

The battery connections can be tight but if they are not clean, they may not be making a good enough electrical connection all the time. This cannot be stressed. Many times batteries and alternators have been replaced before I worked on Triumph Tr 8 1980-1981 Banner Starting Bull 38Ah Battery Electrical Replace Part car, when the only problem was a bad battery terminal clamp that was not making a good connection.

Especially true with the replacement battery terminal clamps that bolt together to grasp the wire. They are notorious for not gripping the wire tightly enough after a year or two of service. Barely enough to keep up. I assume this was at idle speed. The alternator is not spinning fast enough to put out full power when the engine is idling. Did you try increasing the engine speed up to about RPM to see if the voltage went up as well?

Just to add to the confusion, My alternator did almost the. Sometimes it overcharged voltage way too high, mostly on startup sometimes too low. After playing with internal voltage regulators and diodes I just bit for a rebuilt and all the problems vanished. But all of the connections must be checked.

I did increase RPMs but don't remember an increase Rover 45 Rt 2000-2005 Vetech Battery 70Ah Electrical System Replacement Part voltage.

I'll try to do some cleaning up this weekend and double check voltages as long as it's not 8 degrees like last weekend. The day after the brake down I forgot to mention that I warmed the car up before we left and I didn't know it at the time but the 2 radiator fans were running. When the car stopped and we tried to jump it the cooling fans came on.

Interesting that Pauls friend had the same issue when his cooling fans come on. I do have fuel injection and AC in the car but it doesn't work. That's my next project after I complete the restoration on my TR3. Ok Saturday I took the battery out and disconnected all the brown and the one black wires from the big black terminal on the red battery lead wire.

Cleaned everything up nice and shinny. Even replaced the bolt and star washer on the body ground. Did the same with the 3 alternator wires. Started it up with the volt meter attached and no charging for the first 10 seconds or so.

Then it went to Turned the lights and the heater fan on and it dropped to Drove it 26 miles and again this morning for 20 miles no problems.

I do Toyota Aygo Wnb1 Kgb1 2005-2010 Banner Power Bull 50Ah Battery Replacement the volt meter at start up and it usually shows it's not charging then after a few revs it go to normal. Eventually it's been running at times at hi normal. Going on another drive shortly. Please Triumph Tr 8 1980-1981 Banner Starting Bull 38Ah Battery Electrical Replace Part this site no longer supports IE6.

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