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Roger Blakeman (Roger)
Junior Member
Username: Roger

Post Number: 57
Registered: 2-2002
Posted on Saturday, August 10, 2002 - 9:19 pm:   

Yeah, now that its almost over it doesn't seem like it was so bad, but I'll tell you there were times------------Anyway the fat lady isn't singing yet but she's getting closer, The alt. had 3 bad diodes and the volt. reg was gone, so I had the rectifier that has the 6 diodes in it and the v/r replaced and everything cleaned up and repainted(looked new) and the fee was $125 plus tip-he had it done in 2 hours. I didn't think that was too bad. This next week I'll get the a/c charged and hopefully I did a satisfactory job on that and it should work fine. Then on to some cosmetic stuff. Thanks again for the support, Roger B.
Bruno (Originalsinner)
Member
Username: Originalsinner

Post Number: 373
Registered: 5-2002
Posted on Saturday, August 10, 2002 - 8:21 pm:   

I didnt think it would be as bad as you thought. The alternator took the abuse.What was the final alternator $$$.GOOD JOB.Get driving.Got a/c charging ? let me know.
Michael N. (Man90tr)
Member
Username: Man90tr

Post Number: 619
Registered: 4-2001
Posted on Saturday, August 10, 2002 - 6:32 pm:   

Congrats that it all turned out ok!!! Enjoy.
Roger Blakeman (Roger)
Junior Member
Username: Roger

Post Number: 54
Registered: 2-2002
Posted on Saturday, August 10, 2002 - 5:33 pm:   

Just got back from a road test and everything works fine including the radio. Put in fuel and no leaks there and no coolant leaks, runs fairly cool(its 112 out and the temp. gauge read 195 with the 2 radiator cooling fans on) and the engine runs nice and smooth and responsive. YIPPEE!!!!!! So its time to get the a/c charged and see if I did a good job on that. If so, then I'm going to start on some cosmetic stuff. Roger B.
Roger Blakeman (Roger)
Junior Member
Username: Roger

Post Number: 53
Registered: 2-2002
Posted on Saturday, August 10, 2002 - 11:08 am:   

Thanks to: PHIL, BRUNO, Rivee, Mitchell, Dave, Magoo, Ed, Ken, and Verell for your comments/help. Will be doing the road test this weekend. Roger B.
Roger Blakeman (Roger)
Junior Member
Username: Roger

Post Number: 51
Registered: 2-2002
Posted on Friday, August 09, 2002 - 6:10 pm:   

Okay, the 308's all back together, hit the starter and she fired up right away and it looks like all the gauges and warning lights function. I haven't test driven it yet so the speedo may be a problem. Also the radio doesn't work-I'll have to check the fuse on that, but things seem to be going right for a change. I'll post the testing results tomorrow. If anyone is interested in the step-by-step process from bad a/c hoses to a backwards battery I'd be glad to post it and/or answer any questions. Later, Roger B.
Roger Blakeman (Roger)
New member
Username: Roger

Post Number: 50
Registered: 2-2002
Posted on Thursday, August 08, 2002 - 11:35 pm:   

Installed the reworked Alt. today as well as replaced the water hose that fell apart when I twisted the water tube out of the way. So after I install the inner fender panel I'll fire it up and continue my trouble shooting. The Alt. had 3 cooked diodes and a bad Volt. Reg. Parts, labor and paint(it looks like new) was $125. I thought that wasn't too bad. Later, Roger B.
magoo (Magoo)
Advanced Member
Username: Magoo

Post Number: 2967
Registered: 2-2001
Posted on Thursday, August 08, 2002 - 12:14 am:   

Verell, Forget about welding with that guage cable. The point is that fusible links over the years have saved many a gen., alt.,starter etc.. Not a bad idea in my opinion. I really wasn't sure if there were fusible links used but I guess burning up the alt. shows there isn't. Just a thought and wishful thinking I might add.
Roger Blakeman (Roger)
New member
Username: Roger

Post Number: 49
Registered: 2-2002
Posted on Wednesday, August 07, 2002 - 9:16 pm:   

The alt. shop called this P. and he's done with the repair-he replaced the rectifier, so I'll pick it up tomorrow and get it installed and proceed with my trouble shooting. Per the schematic I have 2 groups of wires and related components to check out and resolve the problems I created. I'll keep you posted. Roger B.
Greg Rodgers (Joechristmas)
Member
Username: Joechristmas

Post Number: 424
Registered: 3-2001
Posted on Wednesday, August 07, 2002 - 5:22 pm:   

Monster cable. I have seen these for guitar amps. Is that what you are referring too?
Verell Boaen (Verell)
Junior Member
Username: Verell

Post Number: 242
Registered: 5-2001
Posted on Wednesday, August 07, 2002 - 5:17 pm:   

FUSEABLE LINK - NAAAAH, THIS IS A FERRARI...
My 308 QV has a ~6-gauge flexable cable with a fibreglass jacket that runs from the alternator output terminal to the battery. Not much voltage drop in that cable. You could easily weld with it.

It feels very similar to the Monster Cable sold for high-power amps.
Bruno (Originalsinner)
Member
Username: Originalsinner

Post Number: 355
Registered: 5-2002
Posted on Wednesday, August 07, 2002 - 5:13 pm:   

125. seems good. Does it include price of new diodes?
Roger Blakeman (Roger)
New member
Username: Roger

Post Number: 48
Registered: 2-2002
Posted on Wednesday, August 07, 2002 - 5:07 pm:   

Just finished removing the alt. and took it to an alt. repair shop. The alts. have 6 diodes in them, so we'll see how many are bad. He gave me an est. of $125 to rebuild. Doesn't seem too bad. I'll advise later what the outcome is. Roger B.
magoo (Magoo)
Advanced Member
Username: Magoo

Post Number: 2962
Registered: 2-2001
Posted on Monday, August 05, 2002 - 11:42 pm:   

Roger are you sure there is not a fusible link in the electrical harness diagram as a fail safe. Probably not, but this is a new one to me and have not had occasion to deal with it before. It does seem like a awful lot to knock out but then there may not be one. Check it out.
Roger Blakeman (Roger)
New member
Username: Roger

Post Number: 47
Registered: 2-2002
Posted on Monday, August 05, 2002 - 9:47 pm:   

I've been out of town a few days, so I'm going to get back to work on the 308 shortly. I'm convinced the alternator is fried and after a thorough review of the wiring diagram at least 1 heavy duty diode to the + terminal is shorted, maybe more-this provides a path from the battery even when the key is off to the alt. light. The other side of the alt. light goes to the switch side of the 2nd fuse on the left bank that keeps blowing and thats why gauges, etc. don't work. So, back to work.
JohnR. (Rivee)
Junior Member
Username: Rivee

Post Number: 69
Registered: 1-2002
Posted on Tuesday, July 30, 2002 - 5:29 pm:   

I knew it had been a long time since I tried the polarizing trick.........
Edward Gault (Irfgt)
Intermediate Member
Username: Irfgt

Post Number: 1665
Registered: 2-2001
Posted on Monday, July 29, 2002 - 7:20 pm:   

You could do that on a generator but not an alternator. The diodes are puked.
JohnR. (Rivee)
Junior Member
Username: Rivee

Post Number: 67
Registered: 1-2002
Posted on Monday, July 29, 2002 - 6:55 pm:   

Roger, I think they're is a way to reset your alternator and/or regulator. What will happen is that instead of charging, it will discharge your battery the way it is now. If I'm not mistaken, you can jump a couple of the connections on either your alternator or regulator to re-polarize it. I've done this before, but don't remember how. Call you local generator shop and ask.
Mitchell Minh Le (Yelcab1)
Junior Member
Username: Yelcab1

Post Number: 250
Registered: 11-2001
Posted on Sunday, July 28, 2002 - 10:48 pm:   

Sorry to hear that. Check all your fuses and relays first to see if they simply blew out before you replace any thing. And then, if those are good, then chances are you did major damage to the electrical components. They really do not like to be reverse polarity.
David Feinberg (Fastradio2)
Junior Member
Username: Fastradio2

Post Number: 114
Registered: 4-2002
Posted on Sunday, July 28, 2002 - 10:01 pm:   

Roger,
It would be pretty safe to say that all the items you mention, including the alternator are now toast...

Replace the alternator/regulator first...and go from there.

Best of luck,
David
Ken Ross (Kdross)
Junior Member
Username: Kdross

Post Number: 95
Registered: 2-2002
Posted on Sunday, July 28, 2002 - 9:53 pm:   

Roger:

You did a very bad thing. I am not familar with the eletrical system on a 308 to say what is wrong, but my mechanic has just replaced $26K worth of electronics on a 1981 Rolls where the owners son misconnected the battery as you did. Hopefully you only blew a $10 part.
Roger Blakeman (Roger)
New member
Username: Roger

Post Number: 45
Registered: 2-2002
Posted on Sunday, July 28, 2002 - 9:44 pm:   

I screwed up and hooked up my battery wrong and as a result, the tach. doesn't work, the radio doesn't work, oil press. and fuel gauges don't work and the alternator warning light comes on when the ignition is OFF, but when the car is running, the light is off. All the fuses are ok and all the rest of the electrical stuff seems to work ok, however I haven't driven the car, so I would imagine the speedo is also not working. Please help, Roger B.

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