| Author |
Message |
Caesar753
Samba Member
Joined: March 25, 2021
Posts: 10
|
 Posted: Fri Apr 02, 2021 6:40 am Post subject: 6v generator armature |
 |
|
The shaft of my 6v generator is stripped and my mechanic says he can change only the shaft on which are mounted the coils, on the internet i can find a part with this bosch codes : 1104013431 , 1104013434 , 1104013949 , 1104013956 fro bugs from 1949 ahead
Is it correct or not?
Thanks a lot
Last edited by Caesar753 on Thu Apr 08, 2021 3:55 am; edited 1 time in total |
|
| Back to top |
|
 |
Cusser
Samba Member
Joined: October 02, 2006
Posts: 31373
Location: Hot Arizona
|
| Posted: Fri Apr 02, 2021 7:23 am Post subject: Re: 6v generator coil |
|
|
| Caesar753 wrote: |
| The shaft of my 6v generator is stripped |
You mean the threads on the end? Cut to next smaller size with a die (SAE or metric) and use corresponding nut. I did same on one of my VWs.
_________________
1970 VW (owned since 1972) and 1971 VW Convertible (owned since 1976), second owner of each. The '71 now has the 1835 engine, swapped from the '70. Second owner of each. 1988 Mazda B2200 truck, 1998 Frontier, 2014 Yukon, 2004 Frontier King Cab. All manual transmission except for the Yukon. http://www.thesamba.com/vw/forum/album_page.php?pic_id=335294 http://www.thesamba.com/vw/forum/album_page.php?pic_id=335297 |
|
| Back to top |
|
|
mukluk
Samba Member
Joined: October 18, 2012
Posts: 7028
Location: Clyde, TX
|
| Posted: Fri Apr 02, 2021 9:43 am Post subject: Re: 6v generator coil |
|
|
What information I can find online seems to show that all of the listed part numbers are 12v generator armatures, not 6v.
_________________
1960 Ragtop w/Semaphores "Inga" |
|
| Back to top |
|
|
Caesar753
Samba Member
Joined: March 25, 2021
Posts: 10
|
| Posted: Fri Apr 02, 2021 2:45 pm Post subject: Re: 6v generator coil |
|
|
| mukluk wrote: |
| What information I can find online seems to show that all of the listed part numbers are 12v generator armatures, not 6v. |
Ok, thanks! Where did you find the part numbers?
| Cusser wrote: |
| You mean the threads on the end? Cut to next smaller size with a die (SAE or metric) and use corresponding nut. I did same on one of my VWs. |
Yes, a bad mechanic did this, using a spinneret M11x1,25; now I bought the right nut (M12x1,25) and obviously it doesn't tighten...
Now my current mechanic won't thread the shaft with an M10 spinneret and use a M10-to-M12 helicoil to use the right M12 nut (he says that the shaft would be too much thin and could break) so I asked to a local mechanical workshop to turn a M11x1,25 nut with the shape of the original M12 nut, but they are taking time and I don't know if this will work, so I'm thinking to change the internal coils and their shaft... |
|
| Back to top |
|
|
Cusser
Samba Member
Joined: October 02, 2006
Posts: 31373
Location: Hot Arizona
|
| Posted: Fri Apr 02, 2021 6:27 pm Post subject: Re: 6v generator coil |
|
|
| Cusser wrote: |
| You mean the threads on the end? Cut to next smaller size with a die (SAE or metric) and use corresponding nut. I did same on one of my VWs. |
Yes, a bad mechanic did this, using a spinneret M11x1,25; now I bought the right nut (M12x1,25) and obviously it doesn't tighten...[/quote]
If mine, I'd try to cut thread to 7/16-20 (7/16 inch, 20 threads per inch).
_________________
1970 VW (owned since 1972) and 1971 VW Convertible (owned since 1976), second owner of each. The '71 now has the 1835 engine, swapped from the '70. Second owner of each. 1988 Mazda B2200 truck, 1998 Frontier, 2014 Yukon, 2004 Frontier King Cab. All manual transmission except for the Yukon. http://www.thesamba.com/vw/forum/album_page.php?pic_id=335294 http://www.thesamba.com/vw/forum/album_page.php?pic_id=335297 |
|
| Back to top |
|
|
mukluk
Samba Member
Joined: October 18, 2012
Posts: 7028
Location: Clyde, TX
|
|
| Back to top |
|
|
Caesar753
Samba Member
Joined: March 25, 2021
Posts: 10
|
| Posted: Sat Apr 03, 2021 7:23 am Post subject: Re: 6v generator coil |
|
|
| Cusser wrote: |
If mine, I'd try to cut thread to 7/16-20 (7/16 inch, 20 threads per inch). |
Do you think that cutting thread to 3/8"-24 (that is about M10 in metric standard) would make the shaft too much thin? |
|
| Back to top |
|
|
Cusser
Samba Member
Joined: October 02, 2006
Posts: 31373
Location: Hot Arizona
|
| Posted: Sat Apr 03, 2021 8:06 am Post subject: Re: 6v generator coil |
|
|
| Caesar753 wrote: |
| Cusser wrote: |
If mine, I'd try to cut thread to 7/16-20 (7/16 inch, 20 threads per inch). |
Do you think that cutting thread to 3/8"-24 (that is about M10 in metric standard) would make the shaft too much thin? |
If you went smaller than 7/16 inch, I'd go to 10mm x 1.25mm instead, slightly larger than 3/8 inch. Plus, at 1.25mm spacing, would match the original thread spacing.
_________________
1970 VW (owned since 1972) and 1971 VW Convertible (owned since 1976), second owner of each. The '71 now has the 1835 engine, swapped from the '70. Second owner of each. 1988 Mazda B2200 truck, 1998 Frontier, 2014 Yukon, 2004 Frontier King Cab. All manual transmission except for the Yukon. http://www.thesamba.com/vw/forum/album_page.php?pic_id=335294 http://www.thesamba.com/vw/forum/album_page.php?pic_id=335297 |
|
| Back to top |
|
|
Caesar753
Samba Member
Joined: March 25, 2021
Posts: 10
|
| Posted: Sat Apr 03, 2021 11:31 am Post subject: Re: 6v generator coil |
|
|
| Cusser wrote: |
| Caesar753 wrote: |
| Cusser wrote: |
If mine, I'd try to cut thread to 7/16-20 (7/16 inch, 20 threads per inch). |
Do you think that cutting thread to 3/8"-24 (that is about M10 in metric standard) would make the shaft too much thin? |
If you went smaller than 7/16 inch, I'd go to 10mm x 1.25mm instead, slightly larger than 3/8 inch. Plus, at 1.25mm spacing, would match the original thread spacing. |
Thanks for your answer! Yes, it was my original idea: cutting thread M10x1,25 (or M10x1,5, the original nut has this thread) and see how it works...
Do you thing that this coil in these photos is for 6V and can mount on a 1967 generator?
|
|
| Back to top |
|
|
mukluk
Samba Member
Joined: October 18, 2012
Posts: 7028
Location: Clyde, TX
|
| Posted: Sat Apr 03, 2021 11:38 am Post subject: Re: 6v generator coil |
|
|
That looks like a 6v generator armature (it's not a coil  ). Since you now mention your car is a 1967, that begs the question as to whether your 6v generator is a 90mm or 105mm diameter body -- the armature you have pictured is for a 90mm diameter generator.
_________________
1960 Ragtop w/Semaphores "Inga" |
|
| Back to top |
|
|
Caesar753
Samba Member
Joined: March 25, 2021
Posts: 10
|
| Posted: Sat Apr 03, 2021 11:47 am Post subject: Re: 6v generator coil |
|
|
| mukluk wrote: |
| That looks like a 6v generator armature (it's not a coil ). Since you now mention your car is a 1967, that begs the question as to whether your 6v generator is a 90mm or 105mm diameter body -- the armature you have pictured is for a 90mm diameter generator. |
Thanks for your quick answer!!!!
So I should measure the diameter of the body?
Can it be useful if I know that the diameter of the generator pulley is 105mm? |
|
| Back to top |
|
|
mukluk
Samba Member
Joined: October 18, 2012
Posts: 7028
Location: Clyde, TX
|
| Posted: Sat Apr 03, 2021 7:47 pm Post subject: Re: 6v generator coil |
|
|
You definitely will need to know what diameter generator you have if you decide to swap out the armature since one for a 90mm will not work in a 105mm body, and one for a 105mm will not physically fit into a 90mm body. A simple exterior diameter measurement is all that's necessary.
_________________
1960 Ragtop w/Semaphores "Inga" |
|
| Back to top |
|
|
Caesar753
Samba Member
Joined: March 25, 2021
Posts: 10
|
| Posted: Thu Apr 08, 2021 3:33 am Post subject: Re: 6v generator coil |
|
|
| mukluk wrote: |
| You definitely will need to know what diameter generator you have if you decide to swap out the armature since one for a 90mm will not work in a 105mm body, and one for a 105mm will not physically fit into a 90mm body. A simple exterior diameter measurement is all that's necessary. |
Measured the diameter of the generator chassis, it is 90mm, can I buy that armature? Is it 6v for sure? These are some other photos:
The shaft looks a little rusty, can it be a problem? |
|
| Back to top |
|
|
|
