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airschooled
Air-Schooled
Joined: April 04, 2012
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Location: on a bike ride somewhere
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 Posted: Tue May 20, 2014 9:49 pm Post subject: |
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Alright, so I tried feel-checking the mechanical advance with the distributor indexed in the engine instead of on the bench, and there was a bit of resistance in the retard direction that my fingers could nudge it past. This was NOT the same as out of the engine:
Link
Apologies if the video is "still processing"…
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airschooled
Air-Schooled
Joined: April 04, 2012
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Location: on a bike ride somewhere
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| Posted: Tue May 20, 2014 9:52 pm Post subject: |
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THEN… I checked to see if the play was in my Mallory… It was!!! So I checked the drive dog for play:
Link
So every distributor has this "play" I've been looking for. Problem is, only DVDAs have the brunt of vacuum retard pulling on it all the time. Is this much play normal?
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Glenn 
Mr. 010
Joined: December 25, 2001
Posts: 76949
Location: Sneaking up behind you
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| Posted: Wed May 21, 2014 3:27 am Post subject: |
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That amount of play is pretty normal for a used engine.
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Glenn
74 Beetle Specs | 74 Beetle Restoration | 2180cc Engine
"You may not get what you pay for, but you always pay for what you get"
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Tcash
Samba Member
Joined: July 20, 2011
Posts: 12844
Location: San Jose, California, USA
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| Posted: Wed May 21, 2014 12:34 pm Post subject: Distributor drive gear. |
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Hi, you may try a new drive gear. The brass drive gear is replaced more often do to being damaged when pressing the gear off.
Also Wilson talks about shimming the drive gear. This can account for additional timing variations. If you do this. Do yourself a favor and braze the shims together. Bad enough having one shim to deal with.
Good Luck |
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1500king
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Joined: January 05, 2007
Posts: 209
Location: Adelaide, Australia
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| Posted: Mon May 26, 2014 9:41 am Post subject: |
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| Tcash wrote: |
Hi 1500, just to confirm. The 853 you have, does not have the dimple in it?
Thank You
Tcash |
The 853 can I have has a dimple in it. My question still is "does it matter?" If an 853 can is needed as original spec...then bolt it up and check the final curve on a dizzy machine. Again, the arm bottoms on the housing from the inner frame(as I illustrated)..
Now...if you are thinking about an 851 Vac can, that is a different story. You need the distributor, the engine and the carburetor for it. |
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Tcash
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Location: San Jose, California, USA
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| Posted: Mon May 26, 2014 11:45 am Post subject: |
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Thank you 1500. It would be easy enough to test.
Pull a vacuum on the 853 and if the arm stops moving before the limiting stop hits. The dimple is limiting the advance travel.
I could see Bosch putting a dimple in the can cover. This would probably be more cost effective. Rather than making the tooling and stamping out another arm. They simply press a dimple in the can cover?
They may have had a run of X amount of arms in stock and needed to use them?
Thanks again
Tcash |
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emu88
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Posts: 1857
Location: UK
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| Posted: Sun Jun 08, 2014 7:57 am Post subject: |
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I have an 034 SVDA distributor. The can works and I might take it all apart to clean etc. If I do, the only things I need to be careful of OR have replacements for are the fiber washer and the two plastic clips that hold the shaft down right? And can those parts be taken off one of those Chinese 034 distributors?
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Tcash
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Location: San Jose, California, USA
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| Posted: Sun Jun 08, 2014 9:07 am Post subject: |
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Hello
I might take it all apart to clean etc
Just clean it with WD40 and grease where the weights ride and put a few drops of oil down the middle.
have replacements for are the fiber washer and the two plastic clips
You may want to have a fiber washer on hand. You can use vacuum hose in place of the plastic clips.
And can those parts be taken off one of those Chinese 034 distributors
asiab3 wrote: Some Brazillian 009s that don't cost much at swap meets have the same plastic post setup. Don't know about the 034.
http://www.ebay.com/itm/Bosch-Distributor-Repair-K...2333197150
http://www.amazon.com/Bosch-1237010007-Distributor-Shaft-Kit/dp/B001CO6G1K |
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airschooled
Air-Schooled
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| Posted: Sun Jun 08, 2014 9:45 am Post subject: |
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I'm not sure what's in the Amazon link page, but the eBay kit contains nothing usable besides washers, which you can find at Fastenal, Grainger, or McMaster-Carr for a few cents each.
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emu88
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| Posted: Wed Jun 11, 2014 5:39 am Post subject: |
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Hmm interesting. Thanks Tcash.
By vacuum hose do you mean shrink wrap?
Do you know of any place I can source a fibre washer bearing in mind I am outside of the US and have no swap meets near me?
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03/1971, 1302 Super Beetle 1600 dual port
Solex 34-pict 3
SVDA Bosch distributor
Long reach heads |
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Tcash
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Posts: 12844
Location: San Jose, California, USA
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| Posted: Wed Jun 11, 2014 8:43 am Post subject: |
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| emu88 wrote: |
Hmm interesting. Thanks Tcash.
By vacuum hose do you mean shrink wrap?
This is vacuum hose.
You cut two small pieces and slide one on where the spring goes put the spring on. Then slide the other piece on above the spring. This way the spring rides between the two pieces of vacuum hose.
Do you know of any place I can source a fibre washer bearing in mind I am outside of the US and have no swap meets near me? |
No I do not. Look for a hardware supplier in your area as asiab3 suggested.
Fastenal, Grainger, or McMaster
If you do not take it apart the fiber washers should stay in place.
Good Luck |
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Tcash
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| Posted: Wed Jun 11, 2014 8:46 am Post subject: |
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| asiab3 wrote: |
| I'm not sure what's in the Amazon link page, but the eBay kit contains nothing usable besides washers, which you can find at Fastenal, Grainger, or McMaster-Carr for a few cents each. |
Hi
I could find the steel washers in the past. But was unable to locate the big and small fiber washers. Would you have a source for these.
Thank You
Tcash |
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the Lariat
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Joined: June 08, 2014
Posts: 7
Location: Washington
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| Posted: Sun Jul 27, 2014 2:14 pm Post subject: dvda |
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| I have a similar dvda distributor - 205AN. But im confused . The #1 notch on the rim doesn't line up with the tdc. Its at 1o'clock instead of 5 o'clock. The distributor is identical to the one in the rebuild photos. Is there something wrong, and how do you make this work? This is regarding the original post from page 1 . |
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airschooled
Air-Schooled
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| Posted: Sun Jul 27, 2014 2:49 pm Post subject: Re: dvda |
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| the Lariet wrote: |
| I have a similar dvda distributor - 205AN. But im confused . The #1 notch on the rim doesn't line up with the tdc. Its at 1o'clock instead of 5 o'clock. The distributor is identical to the one in the rebuild photos. Is there something wrong, and how do you make this work? This is regarding the original post from page 1 . |
Is your distributor installed in the engine? If so, your drive gear could be installed wrong. Or you could have the whole thing rotated incorrectly.
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the Lariat
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| Posted: Sun Jul 27, 2014 2:53 pm Post subject: |
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No, not installed. I tried yesterday when I discovered this issue. The drive shaft lines up like the haynes manual shows.
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Tcash
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the Lariat
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| Posted: Mon Jul 28, 2014 9:06 am Post subject: dvda distributor |
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| tasb wrote: |
Good write up.
I have a few pointers:
Oil the heck out of the shaft before you install it in the housing.
The orientation of the drive dog is different on some of the later distributors like this one compared to earlier distributors ie: 180 difference.
The 009 you showed only has one advance spring when stock. You can ad a second which dampens the advance.
I've never encountered a stock roll pin holding the drive dog in place, they've all been solid. They are reusable if not beat up too badly. I lay the drive dog on the edge of my vice thusly keeping it from rolling around,and whack it with a BFH and the pin will come out.
On the later units like the 211 Q the points plate rarely just "slides out". Sometimes it must be rotated to clear a cleat that hold the bottom plate in place.
I like to stuff a paper towel around the points cam when I am removing the points cam circlip as they can make deep space orbit if your not careful. I also prefer to remove the distributor shaft and cam together as one unit since it makes it easier to work on them removed from the housing. |
So the drive dog is different from the distributor I have set up now.. how do you set this type up?
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Tcash
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| Posted: Mon Jul 28, 2014 9:57 am Post subject: |
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So the drive dog is different from the distributor I have set up now.. how do you set this type up?
You have to align index the dist. drive gear.
Or it is possible that someone put the drive dog on 180 deg off. No matter.
Find tdc
index drive gear
install dist.
put #1 spark plug wire on dist cap where the rotor points to. |
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the Lariat
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Location: Washington
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| Posted: Wed Jul 30, 2014 5:46 am Post subject: |
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| Tcash wrote: |
So the drive dog is different from the distributor I have set up now.. how do you set this type up?
You have to align index the dist. drive gear.
Or it is possible that someone put the drive dog on 180 deg off. No matter.
Find tdc
index drive gear
install dist.
put #1 spark plug wire on dist cap where the rotor points to. |
Ok, I understand now. My old distributors notch on the rim points to 5 o'clock, the dvda points to 1 o'clock. I just need to put the spark plug wires on accordingly. Although I think this dvda needs to be rebuilt. The points plate is loose and when I turn the rotor something is slightly grinding... I did find and purchase a new mexican bosch svda on the busdepot. Ill try and fix the old dist for a spare. Thanks for the help!
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c705ncp
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Location: North East England
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| Posted: Wed Aug 05, 2015 7:08 am Post subject: |
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I know this an old post but does anyone know where I can advance and retard springs for Bosch distributors that fit type 1 VW Beetle.
I've got a couple of part numbers 059 998 211 or 1237 010 007.One is VW and the other is Bosch. I live the other side of the pond in UK but I'm quite happy to get in touch with supplier in USA
Robert |
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