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incynr8 Samba Member

Joined: September 23, 2003 Posts: 822 Location: Soylent Green is PEOPLE!
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Posted: Mon Oct 23, 2006 3:42 pm Post subject: Ignition switch repair? |
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Ok, I have
A good battery
good starter
good soleniod
clean connections at start switch
6.3 V on the guage
turn starter switch get 3-4V at soleniod
Is that enough to run the relay kit or is the starter switch suspect, I SOMETIMES get starts.
If the switch is suspect, it is a 1959 screw term and riveted to the body, any internal repair attemtp I can make?
My wires are very clean.
AL _________________ ..........
Do it right, or don't bother. |
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Eric&Barb Samba Member

Joined: September 19, 2004 Posts: 26323 Location: Olympia Wash Rinse & Repeat
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Posted: Mon Oct 23, 2006 8:01 pm Post subject: |
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Hi Al,
Check voltage at the battery posts and then use that amount for referance as you check for what voltage at EACH connection going from battery to ignition switch and back to the starter solinoid.
Good idea to replace each battery cable and the tranny to body grounding cable to see if that will do the trick.
Have you checked out the headlight rebuild article we helped to write up in the type2.com archives? Also solder the clips in each slot of the post-1960 fuse box together, and soldering the pre-1961 fuse box riveted connections helps a lot! _________________ In Stereo, Where Available! |
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npelton Samba Member
Joined: May 12, 2006 Posts: 36
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Posted: Mon Oct 23, 2006 9:26 pm Post subject: |
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| nice |
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incynr8 Samba Member

Joined: September 23, 2003 Posts: 822 Location: Soylent Green is PEOPLE!
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Posted: Tue Oct 24, 2006 3:24 am Post subject: |
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Hmm it might be the tranny grounding cable, but the others look nicer than my subaru outside. It's just odd I sometimes get starts and sometimes do not. I am trying a 6v ford relay once I find one around town today.
Thanks for the fuse box tips, I had read those in the archives and will look to tighten them up as well.
Al _________________ ..........
Do it right, or don't bother. |
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spiderjames Samba Member
Joined: October 30, 2004 Posts: 358
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Posted: Tue Oct 24, 2006 4:24 am Post subject: |
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My wires are very clean.
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The connection may be clean but the wire itself tends to increase in resistance as it ages. I would clean all the connections first, the switch and the selenoid and then try a relay. In my experience a horn relay works better than the bypass selenoid. If that doesn't fix it try replacing the starter selenoid.
If you bypass the switch entirely does it start consistantly? |
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incynr8 Samba Member

Joined: September 23, 2003 Posts: 822 Location: Soylent Green is PEOPLE!
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Posted: Tue Oct 24, 2006 4:46 am Post subject: |
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that's tonights testing, the wire to starter motor and then soleniod from the battery feed cable(which is new) for reliabilty testing.
The unit is a new Bosch starter with new soleniod. I do believe the condition is the overal total resistance of the wiring, but the ignition switch is suspect internally as well. Since it is a brass rivet, I was particualrly asking if there is a way to open them up and clean them or tighten the interal connections.
So far I get 5.8-6.3 volts at the soleniod at terminal 30. At the ignition wire trigger point, I get about 3.8 when the key is turned. I hope that would be enough to fire a 6v relay of some point. I am doing this relay regardless as it makes sense, just trying to keep my OG ignition if I can.
Seems like I have alot of little improvements to do..
Thanks for the help!
AL _________________ ..........
Do it right, or don't bother. |
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Big Bill Samba Member
Joined: June 21, 2005 Posts: 1816 Location: Fortuna Calif.
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Posted: Tue Oct 24, 2006 6:24 am Post subject: |
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| incynr8, I too had the problems you are talking about. I did all the repairs you tried plus the starter bushing and a WW hard start reley and still would get a no start sometimes. I bought a good used ignition switch in the samba classifieds, and had Gaberial(sp?) rekey it to my OG key code, has been flawless since then. I belive he said he cleaned up the contacts, but I wouldnt know how to open up the switch myself hope this helps. Bill |
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Mr. Loaf Samba Member

Joined: March 30, 2005 Posts: 2098 Location: Okra, Oklahoma
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Posted: Tue Oct 24, 2006 6:27 am Post subject: Switch |
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Your problem is your ignition switch. Maybe you could send it off to Gabriel if you can not figure out how to open it up. Otherwise, find one here on the SAMBA! _________________ Never drive faster than your Angel can fly
$24,100 was too hard to resist................. |
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incynr8 Samba Member

Joined: September 23, 2003 Posts: 822 Location: Soylent Green is PEOPLE!
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Posted: Tue Oct 24, 2006 6:28 am Post subject: |
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they have to come apart then by drilling that center brass rivet and popping the 'tabs' Only way I can see getting to the cyl as well. He had to get into there to retumble it somehow. I see no way from the 'front' or key side.
Has anyone opened one of these up?
I ordered the ww relay, it makes sense to use one, but I really want to keep my original ignition switch.
Thanks,
AL _________________ ..........
Do it right, or don't bother. |
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ToolBox Samba Member

Joined: January 27, 2004 Posts: 3447 Location: Detroit, where they don't jack parts off my ride in the parking lot of the 7-11
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Posted: Tue Oct 24, 2006 9:48 am Post subject: |
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| incynr8 wrote: |
they have to come apart then by drilling that center brass rivet and popping the 'tabs' Only way I can see getting to the cyl as well. He had to get into there to retumble it somehow. I see no way from the 'front' or key side.
Has anyone opened one of these up?
I ordered the ww relay, it makes sense to use one, but I really want to keep my original ignition switch.
Thanks,
AL |
You can if you are careful remove the electrical portion from the switch assembly. Look for 3 stake marks around the backside of the assembly, unstake them and the switch will come apart. I had a new switch and used the electrical portion in the original housing. |
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splitpile Samba's Worst Speller

Joined: May 03, 2000 Posts: 5928 Location: back to living where hell meets the suface
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Posted: Tue Oct 24, 2006 10:06 am Post subject: |
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| incynr8 wrote: |
they have to come apart then by drilling that center brass rivet and popping the 'tabs' Only way I can see getting to the cyl as well. He had to get into there to retumble it somehow. I see no way from the 'front' or key side.
Has anyone opened one of these up?
I ordered the ww relay, it makes sense to use one, but I really want to keep my original ignition switch.
Thanks,
AL |
A hard start relay is a bandaid to a problem, find the problem and fix it.
I have run a temp wire from the starter solinoid to the ignition switch before to test that area, but as you discribe the voltage drop is at the ignition switch, is that with or without the starter wire connected at the switch?
Does Jon Furst (aka Hazetguy) also rebuild ignition switchs like he does headlight switchs? _________________ Stocking distributor of "The Funky Green Panels"
www.BUSTORATION.com metal and more for your bus
"no more hacking my sig line" |
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incynr8 Samba Member

Joined: September 23, 2003 Posts: 822 Location: Soylent Green is PEOPLE!
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Posted: Tue Oct 24, 2006 10:23 am Post subject: |
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SO dont drill the center rivet out?
Thanks.
I am going to try and run contact cleaner through it first. _________________ ..........
Do it right, or don't bother. |
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incynr8 Samba Member

Joined: September 23, 2003 Posts: 822 Location: Soylent Green is PEOPLE!
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Posted: Tue Oct 24, 2006 10:27 am Post subject: |
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Alot of the problem I think is the Bosch starter, I have been reading they often need almost 7 volts to hit the soleniod?
I agree it should WORK without a relay.
Seems to me I have to check the headlight switch and possibly open it and do the internal solder gig, same with fuse box, and then clean/repair my ignition switch.
The relay is not an original implementation, but does reduce alot of wire resistance in the path.
The wiring is so nice it looks new, but beside the battery cable to starter, I do not believe it is.
The voltage drop measured was at the starter soleniod, I had 6 available, and then at the soleniod trigger I had only 3.8 when you would turn the key, so the resistance could be:
At headlight switch
At fuse box
at starter switch
I have alot more to empirically check
The annoying thing is, it SOMETIMES starts!
Al _________________ ..........
Do it right, or don't bother. |
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crofty Judas of the North

Joined: August 09, 2000 Posts: 19920 Location: Land of Whine and Phonies
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Posted: Tue Oct 24, 2006 10:29 am Post subject: |
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Can't you wire the hot lead directly to the ignition switch then to the light switch? I saw a tech article on that years ago... _________________ Your Vanagon sucks, Stop waving at me.
| HamburgerBrad wrote: |
I slept on crofty's tent once. I passed out drunk from two bottles of Everett's brother's wine. |
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incynr8 Samba Member

Joined: September 23, 2003 Posts: 822 Location: Soylent Green is PEOPLE!
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Posted: Tue Oct 24, 2006 10:32 am Post subject: |
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Yes you could.
I will chase the resistance dragon and post again. I really think it's the ignition switch internally, as it was fine for a bit ,then got crappy. It still sometimes fires right up, then doesn't then does, then doesn't. Not much is being manipulated in the meantime. _________________ ..........
Do it right, or don't bother. |
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spiderjames Samba Member
Joined: October 30, 2004 Posts: 358
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Posted: Tue Oct 24, 2006 5:21 pm Post subject: |
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| I agree it should WORK without a relay. |
True it should work without a relay and did when it was new. If its original wiring its 40+ years old. the wire to the selenoid is too long to begin with. Longer wire = more resistance. Long crusty 40 year old wire = too much resistance. Old ignition switch with dirty contacts = even more resistance. It's a wonder these old busses start at all.
| Quote: |
| A hard start relay is a bandaid to a problem, find the problem and fix it. |
Maybe so. The absolute correct fix would be to run new wiring to the selenoid and replace the igntion switch. That's a lot of work to me. If you clean the switch, all of your wire and battery connections, and plug in a relay, you will have a fairly permanent workable solution.
Considering the total length of wire from the back of the bus to the ignition switch and back again, this is really the way VW should have engineered it to begin with.
The relay in my bug has been running for 6+ years without a hitch. I made it out of $8.00 worth of parts from autozone. |
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Hella Bro Samba Member
Joined: February 28, 2002 Posts: 1143
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Posted: Tue Oct 24, 2006 6:54 pm Post subject: |
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| Have you checked your starter bushing? |
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Eric&Barb Samba Member

Joined: September 19, 2004 Posts: 26323 Location: Olympia Wash Rinse & Repeat
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Posted: Tue Oct 24, 2006 7:17 pm Post subject: |
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Hi Volks,
While the starter relay will often fix the starting problem. It will not remove resistance in the wiring connections that occurs due to corrosion, loose connections, bad battery cables, etc... This resistance keeps your lights, signals, horn, wipers, etc., dimmer, less loud, slower working, etc....
With the all the 40+ year old wiring systems in all our VWs and many friends we have helped with, been able to get voltage drop down to 1/10 of a volt when checked at the taillights and solinoid.
In the decades we have been working on VWs, have only seen one that needed the relay, and that due to the solinoid wire was partly fried by a DPO.
Unfortunately if there are no other causes of resistance in the wiring and the ignition switch is going. The ignition switch will just keep going bad from wearing out and finally will not get the starter working any more even with the relay. _________________ In Stereo, Where Available!
Last edited by Eric&Barb on Tue Oct 24, 2006 7:32 pm; edited 1 time in total |
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Stanagon Samba Member

Joined: July 11, 2003 Posts: 4196 Location: Boston, MA
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spiderjames Samba Member
Joined: October 30, 2004 Posts: 358
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Posted: Wed Oct 25, 2006 5:24 am Post subject: |
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| Eric&Barb wrote: |
Hi Volks,
While the starter relay will often fix the starting problem. It will not remove resistance in the wiring connections that occurs due to corrosion, loose connections, bad battery cables, etc... This resistance keeps your lights, signals, horn, wipers, etc., dimmer, less loud, slower working, etc....
With the all the 40+ year old wiring systems in all our VWs and many friends we have helped with, been able to get voltage drop down to 1/10 of a volt when checked at the taillights and solinoid.
In the decades we have been working on VWs, have only seen one that needed the relay, and that due to the solinoid wire was partly fried by a DPO.
Unfortunately if there are no other causes of resistance in the wiring and the ignition switch is going. The ignition switch will just keep going bad from wearing out and finally will not get the starter working any more even with the relay. |
I'm not doubting your experience. It just hasn't been my experience. Every older VW I have owned has had recurring peoblems with the ignition system even with new parts and clean connections. Maybe the resistance isn't the issue but without the starter relay I find myself cleaning connections routinely (every few months) with 6 volt systems being worse. When I use the relay my routine cleaning is limited to my battery connections with the other connection needing attention very seldom. Doesn't mean the connections are staying cleaner. Just means my car will still start.
Back in 1980 when I had my 1970 vw it didn't have this problem. But as I got into older VWs and starter pulling these older derelicts out from behind people sheds and such this problem routinely showed up. Now that all these VW are as old as they are I just use the relay period. I just saves me some hassle when I'm trying to get to work on time.
Clean the switches and connections it will probably start fine. Repeat every few months, ad nauseum.
| Quote: |
If you clean the switch, all of your wire and battery connections, and plug in a relay, you will have a fairly permanent workable solution.
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