Short(s)

[Peter Roberts]

Fellow Listers, I have a problem and need some suggestions on how to solve. TC0604 will not start. Battery reads 12 volts. No tick from the fuel pump when I turn on the ignition. No red generator light on the dash. No lights, no map light. I went out this morning and got map light, fuel pump tick, etc. Pulled on the starter and everything went dead. Can you suggest where I should start looking and how? _Peter

[fnitz]

First thing that comes to mind is a dead battery. An open circuit lead acid battery could read near 12 volts but have very little charge. A fully charged 6 cell lead-acid battery will read 2.15 volts per cell open circuit, or 12.9 volts. The same battery, fully discharged will read 1.9 volts per cell or 11.4 volts. The state of charge is linear so that if you subtract 11.4 from the measured voltage, then divide by 1.5 and multiply by 100, you will get the percentage of charge. As an example, if you measure 12 volts, the battery has 40% of its charge remaining (12-11.4)/1.5 x 100 = 40. Fred TC1353 -----Original Message----- From: mg-tabc@yahoogroups.com [mailto:mg-tabc@yahoogroups.com] On Behalf Of Peter Roberts Sent: Tuesday, May 03, 2005 7:07 AM To: mg-tabc@yahoogroups.com Subject: [mg-tabc] Short(s) Fellow Listers, I have a problem and need some suggestions on how to solve. TC0604 will not start. Battery reads 12 volts. No tick from the fuel pump when I turn on the ignition. No red generator light on the dash. No lights, no map light. I went out this morning and got map light, fuel pump tick, etc. Pulled on the starter and everything went dead. Can you suggest where I should start looking and how? _Peter Yahoo! Groups Links

[Peter Roberts]

The prize goes to David in Bad Soden, Germany, for the answer. It was a marginal battery that finally gave up the ghost. "course I should have figured since it was a eight year old battery. Many thanks to all who responded so promptly. This List is a great resource! Now, on to the other problem that developed over the Winter. No brakes. Pedal to the floor. Since I had brakes when I put it into storage, it is pretty clear that something perished. There are no leaks. With no hydraulic pressure, I conclude that the cup in the Master brake cylinder has packed it in. What may be instructive is that I have not touched the Master Cylinder for over 25 years. As you know, it is a real pain to remove so why fix what ain't broke? Well, sudden no brakes might be a motivation. Anyway, I think I bought a lot of that 25 years by using silicone fluid. Does anyone have a fix on a reasonable cycle for rebuilding the brake system? _Peter

----- Original Message ----- From: Davidtasa@aol.com To: mgtc@comcast.net Sent: Tuesday, May 03, 2005 10:14 AM Subject: Re: [mg-tabc] Short(s) Hi Peter, It really sounds like the battery. It should have a reading of 13-14 Volts to delivery 12. They can read 12 and still be dead. Try changing out the battery with one you know is good, or at least checking the cells to make sure they all have enough water in them and charge or have the battery charged. To me it sounds like a classic dead battery. I'd start there first. David TC 3896 Bad Soden Germany [Non-text portions of this message have been removed]