I need a couple vacuum locations....

[malcolm2]

I have borrowed a nice set of carbs to break-in my engine and maybe even drive the bus around my neighborhood a bit.

Now that the engine etc... is almost assembled, I noticed that this dual set of weber 44s and their intakes don't have a vacuum fitting for the vacuum advance in my distributor. And I guess I need something for the brake booster, right?

Any suggestions for this temporary set up?

Thanks.
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My Toys: '75 Porsche 914, '92 Ski Nautique and now a 1972 VW Transporter Deluxe (punch list fixing)

[SGKent]

a SVDA needs ported vacuum - meaning above the throttle plate so it goes away when the throttle is closed. Brakes use manifold vacuum - well below the carb so it is always there.
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“Most people don’t know what they’re doing, and a lot of them are really good at it.” - George Carlin

[old DKP driver]

If they are Real Weber’s and Not Chinese knockoffs they have ports next to the
Mixture screws on the base of the carbs.
Could also be that no one ever removed the tiny screws and installed the tubes
For the vacuum hose
Dual Weber’s work best on our buses if both carbs have a tee then another
Hose to the distributor port.

If in doubt you could call or email John at aircooled.net for parts.

_________________
V.W.owner since 1967

[malcolm2]

I'll take a pic today and see if someone can point out this port. These were on a 1.7 in a 914, so the PO may not have needed a vacuum.
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My Toys: '75 Porsche 914, '92 Ski Nautique and now a 1972 VW Transporter Deluxe (punch list fixing)

[malcolm2]

Both sides. Thanks for the markings.

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My Toys: '75 Porsche 914, '92 Ski Nautique and now a 1972 VW Transporter Deluxe (punch list fixing)

[malcolm2]

[malcolm2]

Next issue. And maybe it won't matter, but let's hear what you got.

These carbs were purchased some time ago, and to the best of my knowledge, they have never been used.

What should I do about that? Also should I worry about jetting, etc....? How do I know what I have? What do I need?

Remember my plan is to use these carbs to break-in my fresh 2 liter. That might pretty much be it. However, the guy that loaned them to me is a long ways from needing them. Maybe I could keep them a bit longer...

Originally purchased for a 1.7 914. No idea what i have here.

Thanks
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My Toys: '75 Porsche 914, '92 Ski Nautique and now a 1972 VW Transporter Deluxe (punch list fixing)

[Wildthings]

If they were yours, you could pull the lids and see what jetting they have, but since they aren't yours maybe you should leave them alone. I know I would be really pissed if I lent a set of carbs to someone and they rejetted them without my prior consent.

[airschooled]

Besides a door stop, there is no better use for a non-vacuum distributor than breaking in a new engine.
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[malcolm2]

[airschooled]

[Danwvw]

The carbs might run straight out of the box, worth a try. I would disassemble & clean passages jets etc and make notes of what all the jet sizes are and what venturi it is. 44's are kind of big for a 1.7 or 1.8 ltr but would work on a 2 ltr Type 4 engine with 28-32mm venturi's. I would prefer Weber 40 Idf's on a bus though. As far as brake boost just tap the closest intake manifold on just one of the cylinders somewhere easy for a thread in 1/4 or 3/8" pipe fitting to 1/2" tubing.
Example: just one is needed though. Be sure to run a check valve.

[img][/img]
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1960 Beetle And 1679cc DP W-100 & Dual Zeniths!

[malcolm2]

Should have better worded my OP.

Theses are borrowed 44s. Borrowed for engine break in on the stand. So the brake booster question was for after break in and engine install. Since I have them and he doesn’t seem to be in a rush to get them back, it was kind of a “what-if”. But now i know. Plus these intakes have no manifold ports.

2ndly, I have learned much from these forums. Car things and people things. There are only a few people that I would jump off a bridge with. But I learn from most.

Lessons Learned here: small vacuum tee and hoses Go from both carbs to the vacuum can on the distributor. But may not be needed. Don’t worry about jetting. And of course brake boost is not needed.

I plan on the disty vacuum cause everyone on the internet says connection is needed to set the timing at 3000 rpm.

Thanks to all you people on the internet.
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My Toys: '75 Porsche 914, '92 Ski Nautique and now a 1972 VW Transporter Deluxe (punch list fixing)

[Wildthings]

[SGKent]

After you told us what your needs are, I would have just left them alone, set the timing with the mechanical advance only, then break in the cam and call it a day. You aren't going to run the engine up to a wide open throttle full load scenario on an engine stand anyway. If someone does without a block house and remote controls then they are suicidal.
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“Most people don’t know what they’re doing, and a lot of them are really good at it.” - George Carlin

[halfassleatherworks]

you borrowed them... get a 019
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