Welcome to the North American Subaru Impreza Owners Club Monday July 28, 2014
Home Forums WikiNASIOC Products Store Modifications Upgrade Garage
South West Impreza Club
Here you can view your subscribed threads, work with private messages and edit your profile and preferences Home Registration is free! Visit the NASIOC Store NASIOC Rules Search Find other members Frequently Asked Questions Calendar Archive NASIOC Upgrade Garage Logout
Go Back   NASIOC > NASIOC Chapters > South West Impreza Club Forum -- SWIC

Welcome to NASIOC - The world's largest online community for Subaru enthusiasts!
Welcome to the NASIOC.com Subaru forum.

You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. By joining our community, free of charge, you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is free, fast and simple, so please join our community today!

If you have any problems with the registration process or your account login, please contact us.
* Registered users of the site do not see these ads.
Reply
 
Thread Tools Display Modes
Old 05-30-2009, 04:34 AM   #1
C-grunt
Scooby Specialist
 
Member#: 152713
Join Date: Jun 2007
Chapter/Region: SWIC
Location: North Peoria
Vehicle:
2010 G37 Sedan
Gray

Default Electrical Guru needed, 1970 Chevelle

Hey guys, Im most likely going to be buying a bad ass built 70 Chevelle pretty soon. Im getting it for an exceptional price because he's my friend but also because its got an electrical problem. The battery is getting drained at a high rate and he hasnt been able to figure it out. Anyone out there that could help me with this?

Ill get some specs and pictures tomorrow.
* Registered users of the site do not see these ads.
C-grunt is offline   Reply With Quote
Old 05-30-2009, 09:53 AM   #2
kpluiten
Scooby Guru
 
Member#: 120273
Join Date: Jul 2006
Chapter/Region: SWIC
Location: AZ
Vehicle:
06 WRBWRXWGN
Now with 100% more Spec-C

Default

Wirelessly posted (LG Voyager: Mozilla/4.1 (compatible; MSIE 6.0; ) 400x240 LGE VX10000)

I'll help you out, but I live on the other side of the world from you. It should be easy enough to figure out what is draining it, there are no computers to worry about so it should just be some damn junky little circuit, you just need to identify. Just take your time and use a systematic approach to figuring out where the problem lies. There is likely a bulb stuck on somewhere or a short to ground that is not large enough to pop the fuse. It could also possibly be that the alternator isn't charging the battery?
kpluiten is offline   Reply With Quote
Old 05-30-2009, 09:54 AM   #3
kpluiten
Scooby Guru
 
Member#: 120273
Join Date: Jul 2006
Chapter/Region: SWIC
Location: AZ
Vehicle:
06 WRBWRXWGN
Now with 100% more Spec-C

Default

Wirelessly posted (LG Voyager: Mozilla/4.1 (compatible; MSIE 6.0; ) 400x240 LGE VX10000)

OH, and pictures of said bad ass car!
kpluiten is offline   Reply With Quote
Old 05-30-2009, 12:49 PM   #4
02blkwagn19
Scooby Specialist
 
Member#: 146496
Join Date: Apr 2007
Chapter/Region: SWIC
Location: Tempe, AZ
Vehicle:
02 WRX Wagon 2.1L
Built not bought. #0003

Default

thats awesome C-Grunt! I'm actually looking to buy a 70-72 chevelle to restore pretty soon as well, good luck and hope you find the problem!

American Muscle FTW!!!
02blkwagn19 is offline   Reply With Quote
Old 05-30-2009, 01:13 PM   #5
02blkwagn19
Scooby Specialist
 
Member#: 146496
Join Date: Apr 2007
Chapter/Region: SWIC
Location: Tempe, AZ
Vehicle:
02 WRX Wagon 2.1L
Built not bought. #0003

Default

Oh i forgot to mention, if that car has an aftermarket tach, 8 out of 10 times the drain comes from those because they are often times wired incorrectly and sometimes people accidentally wire them drawing constant power. and you wouldn't believe the rate at which i have seen those little mistakes drain a battery.

just fyi
02blkwagn19 is offline   Reply With Quote
Old 05-30-2009, 01:55 PM   #6
*6STARS*
Scooby Newbie
 
Member#: 205327
Join Date: Mar 2009
Chapter/Region: SWIC
Location: New Mexico
Vehicle:
2006 WRX TR
1970 Camaro

Default

You cant really wire a tach wrong.

Any way how fast does it drain? It may be the voltage regulator, it should be on the driver side mounted on the radiator support on the inside on the engine bay. it could also be the connection in the alternator on the big +POS wire going into it. Also make sure the 2 should be blue and yellow wires are pluged in to the alternator aswell, unless they converted it to a single wire alternator. I melted said wire on time and may it gave me problems like you would not believe. I may also be an underdrive pulley that does not spin fast enough to actually charge at cruising speed. Does the tach wig out and bounce around when cruising? Last but not least if you want to build a big block for the car I have a ton of stuff to make a 496CID motor. LMK if I can help any more. Sorry for the so jummbled post but I just woke up.
*6STARS* is offline   Reply With Quote
Old 05-30-2009, 01:58 PM   #7
*6STARS*
Scooby Newbie
 
Member#: 205327
Join Date: Mar 2009
Chapter/Region: SWIC
Location: New Mexico
Vehicle:
2006 WRX TR
1970 Camaro

Default

I would also look at poor ground connections.
*6STARS* is offline   Reply With Quote
Old 05-30-2009, 02:11 PM   #8
ShaggyTR
Scooby Specialist
 
Member#: 197159
Join Date: Dec 2008
Chapter/Region: SWIC
Location: Gilbert
Vehicle:
89 SR20 30r Coupe
Aspen White 05 STi

Default

i was poking around on google and alot of people seem to say it was a bad alternator.

or wired incorrectly
ShaggyTR is offline   Reply With Quote
Old 05-30-2009, 03:48 PM   #9
szeny
Scooby Guru
 
Member#: 81383
Join Date: Feb 2005
Chapter/Region: SWIC
Location: Paradise Valley
Vehicle:
07 335i e90
TiAG/Dakota Black

Default

Quote:
Originally Posted by AZrubasu View Post
i was poking around on google and alot of people seem to say it was a bad alternator.

or wired incorrectly
good call
szeny is offline   Reply With Quote
Old 05-30-2009, 07:48 PM   #10
v8eaterWRX
Scooby Guru
 
Member#: 108547
Join Date: Feb 2006
Chapter/Region: SWIC
Location: boondock camping
Vehicle:
2013 RAM 2500 4x4
6.7l Cummins

Default

Quote:
Originally Posted by szeny View Post
good call
lulz^
v8eaterWRX is offline   Reply With Quote
Old 05-31-2009, 06:21 AM   #11
C-grunt
Scooby Specialist
 
Member#: 152713
Join Date: Jun 2007
Chapter/Region: SWIC
Location: North Peoria
Vehicle:
2010 G37 Sedan
Gray

Default

So I talked to my buddy today and got some more info.

Crate 350 bored 30 over
Built to take 175 shot nitrous
NOS wet system, no pill in it....thinking just a 100 though to be safe
Munsy (spelling) 4 speed with new clutch
Chevy 12 bolt rear end from 68 Camaro with 4.10 gears
Stronger axles
Rear disk brakes from a Corvette (unknown year)
Line brake
Coilovers all around

Interior needs some tlc but its mechanically pretty good. Sorry pics arent that good.








Last edited by C-grunt; 05-31-2009 at 06:28 AM.
C-grunt is offline   Reply With Quote
Old 05-31-2009, 12:22 PM   #12
*6STARS*
Scooby Newbie
 
Member#: 205327
Join Date: Mar 2009
Chapter/Region: SWIC
Location: New Mexico
Vehicle:
2006 WRX TR
1970 Camaro

Default

Nice car. Muncie 4 speed, which one M20,M21 or the infamous rock crusher M22? This car seems to set up pretty well. Just to play it a little more safe find out what pistons and the ring end gap if you can. That would just let you further know what kind of N2o hit you can take . Is it a 4 link car, being tubbed and coilovers and all? This is weird I have a 68 camaro rearend with 4.11's too also with corvette C4 disk brakes and an M21 muncie 4 speed. This is where the similarities end though.
*6STARS* is offline   Reply With Quote
Old 05-31-2009, 01:04 PM   #13
02blkwagn19
Scooby Specialist
 
Member#: 146496
Join Date: Apr 2007
Chapter/Region: SWIC
Location: Tempe, AZ
Vehicle:
02 WRX Wagon 2.1L
Built not bought. #0003

Default

Quote:
Originally Posted by *6STARS* View Post
You cant really wire a tach wrong.
Like I stated before, yes one REALLY CAN wire a tach wrong, you seem to know your stuff, so you should know the kinds of hacks that own old cars like this that think they know everything about cars and screw up the easiest tasks, even wiring a tach.

But either way this looks like a great setup and a beauiful car, you are certainly going to have fun with this car!!
02blkwagn19 is offline   Reply With Quote
Old 05-31-2009, 01:54 PM   #14
kpluiten
Scooby Guru
 
Member#: 120273
Join Date: Jul 2006
Chapter/Region: SWIC
Location: AZ
Vehicle:
06 WRBWRXWGN
Now with 100% more Spec-C

Default

Wirelessly posted (LG Voyager: Mozilla/4.1 (compatible; MSIE 6.0; ) 400x240 LGE VX10000)

I would imagine you could wire a tach incorrectly for sure. What if you connected it to a constant +12 volt and not an ignition switched +12? I'd bet that would drain the battery at some rate. I've seen it done on other cars...
kpluiten is offline   Reply With Quote
Old 05-31-2009, 02:06 PM   #15
ShaggyTR
Scooby Specialist
 
Member#: 197159
Join Date: Dec 2008
Chapter/Region: SWIC
Location: Gilbert
Vehicle:
89 SR20 30r Coupe
Aspen White 05 STi

Default

Quote:
Originally Posted by szeny View Post
good call
thanks chief
ShaggyTR is offline   Reply With Quote
Old 05-31-2009, 02:27 PM   #16
*6STARS*
Scooby Newbie
 
Member#: 205327
Join Date: Mar 2009
Chapter/Region: SWIC
Location: New Mexico
Vehicle:
2006 WRX TR
1970 Camaro

Default

Quote:
Originally Posted by 02blkwagn19 View Post
Like I stated before, yes one REALLY CAN wire a tach wrong, you seem to know your stuff, so you should know the kinds of hacks that own old cars like this that think they know everything about cars and screw up the easiest tasks, even wiring a tach.

But either way this looks like a great setup and a beauiful car, you are certainly going to have fun with this car!!
True you are correct. I just think that is crazy how someone could screw that up, but you are ciorrect. I said that in this case cause the guy who he is getting it from seems like he knows his stuff.
*6STARS* is offline   Reply With Quote
Old 05-31-2009, 04:26 PM   #17
kpluiten
Scooby Guru
 
Member#: 120273
Join Date: Jul 2006
Chapter/Region: SWIC
Location: AZ
Vehicle:
06 WRBWRXWGN
Now with 100% more Spec-C

Default

Wirelessly posted (LG Voyager: Mozilla/4.1 (compatible; MSIE 6.0; ) 400x240 LGE VX10000)

Buy the car already. It's badass.
kpluiten is offline   Reply With Quote
Old 05-31-2009, 04:36 PM   #18
C-grunt
Scooby Specialist
 
Member#: 152713
Join Date: Jun 2007
Chapter/Region: SWIC
Location: North Peoria
Vehicle:
2010 G37 Sedan
Gray

Default

Quote:
Originally Posted by *6STARS* View Post
True you are correct. I just think that is crazy how someone could screw that up, but you are ciorrect. I said that in this case cause the guy who he is getting it from seems like he knows his stuff.
Well he is pretty good mechanically but admits he's no electrician. He thinks the problem is somewhere in the rear of the car but isnt sure.
C-grunt is offline   Reply With Quote
Old 05-31-2009, 06:04 PM   #19
bobturismo
Scooby Specialist
 
Member#: 42145
Join Date: Aug 2003
Location: cruizin' down the street in my
Vehicle:
6-4 jockin da bish-
es and slappin the hoes.

Default

let me know if you need my help.

I've been doing auto electrical for almost 15 years, I've done numerous engine swaps, including into sandrails, carburated and FI. Just got done wiring factory repo console gauges in a 69 camaro.

Im up near the glendale arena so I'm too far away.
bobturismo is offline   Reply With Quote
Old 05-31-2009, 07:07 PM   #20
want2004stipronto
Scooby Newbie
 
Member#: 207273
Join Date: Apr 2009
Chapter/Region: SWIC
Location: Gilbert
Vehicle:
2003 Ford
Mustang gt supercharged

Default

thats a badsas chevelle and those muncie trannys are very strong ur gunna have with that car gl with the electrical problem
want2004stipronto is offline   Reply With Quote
Old 06-02-2009, 06:03 AM   #21
C-grunt
Scooby Specialist
 
Member#: 152713
Join Date: Jun 2007
Chapter/Region: SWIC
Location: North Peoria
Vehicle:
2010 G37 Sedan
Gray

Default

Hey guys update. So the loan was approved. Price is 14k for the car plus lots of extras (tires and misc parts).

We talked about what exactly happens with the electric. The car will start fine but after about 5 miles the volts will drop and the car shuts down. You can jump it and your good to go for a little while more. So he changed out the alternator for a new one and re wired it to the battery but it still happens. Again he is no electrician and wires it all by diagram.

So Im probably gonna have to flat bed it to my house until we can figure out whats wrong.

Oh and the tranny is, I believe, a Muncie M22.
C-grunt is offline   Reply With Quote
Old 06-02-2009, 08:04 AM   #22
*6STARS*
Scooby Newbie
 
Member#: 205327
Join Date: Mar 2009
Chapter/Region: SWIC
Location: New Mexico
Vehicle:
2006 WRX TR
1970 Camaro

Default

Quote:
Originally Posted by C-grunt View Post
Hey guys update. So the loan was approved. Price is 14k for the car plus lots of extras (tires and misc parts).

We talked about what exactly happens with the electric. The car will start fine but after about 5 miles the volts will drop and the car shuts down. You can jump it and your good to go for a little while more. So he changed out the alternator for a new one and re wired it to the battery but it still happens. Again he is no electrician and wires it all by diagram.

So Im probably gonna have to flat bed it to my house until we can figure out whats wrong.

Oh and the tranny is, I believe, a Muncie M22.
My guess is it is grounding out to the chassis somewhere form a wire that had rubbed through to casing. You will know if it an M22 if you can hear major gear whine, because the m22 is a straight cut gear. Does it have a Battery shut off switch in the back lower valance somewhere?
*6STARS* is offline   Reply With Quote
Old 06-02-2009, 11:25 AM   #23
SaabaruMike
Scooby Specialist
 
Member#: 113342
Join Date: Apr 2006
Chapter/Region: SWIC
Location: AZ
Vehicle:
2014 WRX
WRB

Default

M21's are somewhat loud too, so if you've never heard a Muncie before you might not know what to listen for. Unfortunately you will have to pull the tranny to truly identify what it is. Here is some info:

http://www.5speeds.com/muncie2.htm
SaabaruMike is offline   Reply With Quote
Old 06-07-2009, 06:34 AM   #24
06STi
Scooby Specialist
 
Member#: 97561
Join Date: Oct 2005
Location: GT30R Cosie-Hybrid
Vehicle:
2006 Widebody
WRB/Carbon/Primer

Default

So clean all the grounds.... Then put a meter on it and see what the drop is at the battery.

Does it run a HEi or MSD distrbutor? I'm betting it will turn out to be a bad alt. Does it have a internal or external voltage regulator? Get the GM one wire altenator, Easy to install, bolt it on, run one wire to the battery and your done. But start with a fully charged battery and do a draw test 1st. The draw test will tell you if it happening all the time or just while its running.

There would have to be a hella of a drop somewhere to eat up the current and battery when that car is running.
06STi is offline   Reply With Quote
Old 06-07-2009, 06:34 AM   #25
06STi
Scooby Specialist
 
Member#: 97561
Join Date: Oct 2005
Location: GT30R Cosie-Hybrid
Vehicle:
2006 Widebody
WRB/Carbon/Primer

Default

posted twice..
06STi is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
subi electrical guru needed desperately xxlostxx Tri-State Area Forum 16 06-11-2008 06:38 PM
Need an electric Guru In NNJ! Chandy69 Tri-State Area Forum 17 05-07-2006 10:44 PM
1970 Chevelle 70SS454LS6 Member's Car Gallery 14 03-25-2006 11:45 PM
B'ham Tech Geek openings: Lan Guru, and Comm Guru needed ShagnRS South East Region Forum 4 07-07-2004 10:02 AM
1970 Chevelle ...26 original miles... SkirtBoy Off-Topic 28 06-04-2004 02:26 PM


All times are GMT -4. The time now is 02:05 PM.


Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Powered by Searchlight © 2014 Axivo Inc.
Copyright ©1999 - 2014, North American Subaru Impreza Owners Club, Inc.