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Thu Feb 17, 2011 8:20 pm

I originaly posted that I had not seen any R 5 40 horse distributors with vacuum pipes at 9 o'clock. I have seen several since then and I do not believe they are any different from the ones that have the pipe at 11 o'clock.

Thu Feb 17, 2011 9:22 pm

tasb:
Quote: I originaly posted that I had not seen any R 5 40 horse distributors with vacuum pipes at 9 o'clock. I have seen several since then and I do not believe they are any different from the ones that have the pipe at 10 o'clock.

Thanks,

Mon Sep 12, 2011 12:25 pm

Does anyone know where I could locate the hard line vacuum with the loop?
I just put on a new SVDA and did not put the little loop in the line, I have a new cloth covered rubber line going from the carb to the SVDA.

Thanks.
Paul

Mon Sep 12, 2011 5:32 pm

That loop was only used for a short time in the 1962-63 or so, it was soon replaced by the simpler up-then-down "shepherd's crook" style. If you search the Classifieds for "vac line" there should be some matches, there always are when I look.
-Andy

Mon Sep 12, 2011 5:52 pm

I think this is the one Andy is referring to. My old looped line had seen better days and I found this one on Samba.

Tue Sep 13, 2011 9:55 am

I will check the classifieds, looks like wolfsburg west carries the part, but it's on back-order / wish-list. . .

Driving it without the crook or loop is not advised?

Tue Sep 13, 2011 9:59 am

It's there for more long-term prevention of fuel getting down there. You can drive it without it.

Tue Sep 13, 2011 10:27 am

Keep an eye on the classifieds.

I had one for sale... until today, someone bought it.

Tue Sep 13, 2011 3:03 pm

http://www.thesamba.com/vw/classifieds/detail.php?id=1190007

Tue Sep 13, 2011 4:49 pm

beryl green'62bug wrote: http://www.thesamba.com/vw/classifieds/detail.php?id=1190007

Yeah, that's mine. :)

Tue Sep 20, 2011 9:05 am

'67 bug, stock 30PICT1 and 205K distributor.
Car is new to me and has a high/wandering idle problem. I assumed it was a loose throttle shaft and was preparing to bush it but thought I'd take a close look at the distributor first.
After much searching I have discovered that the vac can installed by the PO is actually for a '68 (VW pn ends in -279, '67 should end in -271).
The '67 sets timing at 7.5deg BTDC w/ vac line (I think) connected, and this is how mine is currently timed. '68 sets timing at 0deg w/vac disconnected & plugged.
Car runs quite well ('cept for the idle) but gets low 20's mileage and I am concerned about the timing being too advanced and leading to problems... full advance occurs at 2600-ish rpm.
Can I time it like a '68? It seems that the vac can effectively turns the dist into a 205M.
Anybody got an extra Bosch vac can, 113 237 121 210 (short# 07 017)?
TIA.

Tue Sep 20, 2011 9:45 am

You can and should time it based on what that vacuum canister is doing.

You said your full advance happens at 2600, but you never said how much that total advance was. The "M" canister timed statically to TDC will end up giving you around 32 total advance. Yours at 7.5BTDC would end up around 40, way too much! So check that..! Make a 30 or 32 mark on your pulley if you don't have a timing light with the advance dial on it.

If you're going to set your base timing with a timing light, do it with the vacuum line unhooked.

That 2600RPM sounds about right, comparing the vacuum pull of a few carbs I've tested vs the specs in the book, maybe a little low, as some used carbs would take longer to get up to the 75mmHg or so that the M gets for full advance. However that implies the return spring is set correctly. It is adjustable, do you see any pliers marks on the stud where the spring hooks onto? Not many people have the little factory tool that fits over that stud to turn and adjust it (if it'll even budge after 4 decades)

-Andy

Tue Sep 20, 2011 10:30 am

Thanks Andy for the prompt response.
I will set the base timing to TDC and see how it does. The car has a paint mark on the pulley to indicate full advance, and this mark is stationary with a strobe (mine has no adjustment for advance) at 26-2800RPM which seems low based on other threads here.
The can is new Bosch installed at the last tune up, about 500 miles (and 6 years) ago per the records that came with it.

I'll check for marks on the pin, I was unaware they could be adjusted.

Tue Sep 20, 2011 10:59 am

I would go and check what degrees that full advance paint mark really is. Print this out and use it to determine.

https://www.thesamba.com/vw/gallery/pix/288726.jpg

-Andy

Wed Sep 21, 2011 8:00 pm

Set timing at 0 with a strobe, vac disconnected and plugged.
"Full advance" paint mark on pulley seems to be at 30 degrees (thx for the link above) and the mark now appears stationary (on cc seam) at 34-3500rpm.

It will now idle at 850RPM (though not much lower) with the stop screw barely clear of the cam and using mixture screw to set idle. (Turning it in to stumble and then out approx 1/4 turn.)
In achieving this, the mixture screw is now closed fully 1/2 turn from it's previous setting. Hope this helps improve the gas mileage a bit.
Thanks again, Samba rocks!

Sun Oct 30, 2011 2:53 pm

For another thread, I took apart a vacuum canister from the common SVDA 043905205 / 1237170034 distributor. I thought I'd put a better quality photo in here as well. This is a Bosch 1 237 121 579 (07 059) or VW 043905271 vacuum canister.

-Andy

Fri Mar 22, 2013 1:06 pm

I need a 1237 121 279 vac can. Can't find one anywhere. Or what can I use for a distributor. My dizzy is a 113 905 205t. Its going on a 1641sp with a 30 Pict 2 carb. Thanks.

Fri Mar 22, 2013 4:37 pm

The most likely reason you will not find that particular vacuum can is because during the production of these cans Bosch was not putting numbers on the pull arms like they did later on. Your best bet is to find a used one that is still good. The 113 905 205 T's are very plentiful. You can also use the vacuum can off of an 113 905 205 M as the cans are the same. During the production run the part numbering system was different. The number you have is a later numbering system . The other earlier number ends in 024.

Sun Mar 24, 2013 7:47 pm

Would it be more easy to get a different dizzy that's all together.? If so which one? I looking to get the car back on the road soon.

Tue Apr 09, 2013 6:37 pm

glutamodo wrote: You can and should time it based on what that vacuum canister is doing.

You said your full advance happens at 2600, but you never said how much that total advance was. The "M" canister timed statically to TDC will end up giving you around 32 total advance. Yours at 7.5BTDC would end up around 40, way too much! So check that..! Make a 30 or 32 mark on your pulley if you don't have a timing light with the advance dial on it.

If you're going to set your base timing with a timing light, do it with the vacuum line unhooked.

That 2600RPM sounds about right, comparing the vacuum pull of a few carbs I've tested vs the specs in the book, maybe a little low, as some used carbs would take longer to get up to the 75mmHg or so that the M gets for full advance. However that implies the return spring is set correctly. It is adjustable, do you see any pliers marks on the stud where the spring hooks onto? Not many people have the little factory tool that fits over that stud to turn and adjust it (if it'll even budge after 4 decades)

-Andy

How exactly is this adjustment made? I have a 07024 can on a 113 905 205T, but can't get more than about 27' of advance...it looks like the spring is actually keeping the can from fully retracting. Are 205K and 205T return springs the same? does the spring have to be a certain tension? and lastly, anyone have an extra spring they want to give me?

Thanks
Ben