Question about dual carbs for a porsche pancake engine??

[Bleyseng]

yes, its either a early 411 or 914 1.7 depending on the engine code near the back of the case. Should start with either a "W" or "EA" which is a 80hp 1.7L with djet.
With carbs who knows its output.

Send the carbs out to be rebuilt as most guys f*uck em up...and the shafts need to be bushed for proper operation.

I have never seen a good running POS single carb.... I have seen ones that run, start crappy, and have poor MPG.

Clean that engine off so it runs cooler..
_________________
70 Ghia Black convert-9/69 build date-stock w/133k 1600 SP-barn find now with a rebuilt tranny and engine
77 Westy 2.0L w/Ljet, Camper Special engine-95hp and with LSD!(sold)
76 Porsche 914 2.1L L20c, 120hp Djet (sold)
87 Syncro Westy Titan Red 2.1L 2 knob 100k miles

[Wildthings]

Definitely looks like a hodge podge of parts. 411 or Porsche fan shroud, but with a bus fan and timing scale. Same with the dip stick, some parts from both. Not really important except for the PCV valve, how is it plumbed? Did any carburated engines use a PCV valve? On D-jet engines that used PCV valves the valve fed into the intake air plenum, plus filtered fresh air was supplied into the rocker boxes.

Looks like his valve is feeding into the air cleaner not the manifolds, it will pass almost no crankcase fumes this way. If he doesn't have vented rockers then I would bet his oil has a lot of water in it and he might have a few extra oil leaks do to higher than normal crankcase pressure. He should either go back to the original carburetor system with an open breather or correctly install all the parts to a PCV system.

[mikebigh]

[deadwesty]

yeah ur right abt many ppl fuck around with motor, etc.... but i can tell the piece that is on top of carbs is purely stock (not the center thing). it got me thinking, it might have different or not stock mainfold or carbs??

hard to find unmolested 1.7 liters??? i had a bunch of them including every bits...i let them go not long ago...

[keifernet]

[deadwesty]

i had few stock 1.7 liter on my old 72 buses.

i noticed in the pics, the stock oil bath is higher- am surpised cuz i recall that 914 dont have that much space in engine bay either...why would porsche have higher oil bath?? or am i missing something??

[BIGTSV]

I use brake cleaner, and a hose. I also use some POR Marine Cleaner and a power washer.

If you clean up your motor keep water away from your dist and carb openings and you should be good to go.
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1989 VW White Star
English made DR Martens

[vwTattoo]

yeah i am meaning to do that, i was always scared i would mess somthing up because there are so many wires and stuff running all over the place
whats a good engine cleaner?

[BIGTSV]

A good motor cleaning may be a good first step
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1989 VW White Star
English made DR Martens

[VDubTech]

[LeeE]

It looks like it is a 914 engine
Oil filler and dipstick on top
That's about the only difference between Bus and 914 engines that I know

EXCEPT the 914 2.0 as stated above
_________________
1978 Westfalia stock 2.0 FI
Welcome to the Okeedokee Swamp

[Wildthings]

It looks like you have the stock 72 engine set up. 1700cid with dual Solex carbs. The carbs are no big deal to rebuild yourself is the throttle shafts are still tight. If the bores for the throttle shafts are worn to the point you can feel play in the shaft send them off to someone like Kiefernet to get them rebushed. Keeping the original Solex's is the cheapest and best solution.

[SublimeBus]

whats your engine code thats stamped in more than one place....

Looks to me like a standard type 4 Bus Engine....Not a Porsche motor

This will tell you what you have exactly.....Given parts wern't changed all around the engine and taken from a different year.

Type 1 Engines (found on Bus thru 1971)

D
Thru 8/65, 1200cc (34 hp),

O
1964, 1500cc (44 hp)

H
1965, 1500cc (44 hp)

HO, TO
1966-67, 1500cc (44 hp)

B5
1968, 1600cc single port, single relief

B
1969, 1600cc single port

B6
1970, 1600cc single port, dual relief, for Type 1 vehicles

AE
1971-72, 1600cc dual port, 8/70-7/71

AH
1973-1974, 1600cc dual port, for Type 1 vehicles

AJ, AS
1975-79 1600cc dual port, for Type 1 vehicles

F1, F2
1300-1600cc replacement engine case

AK
1967-74 1500-1600 replacement engine case

AB, AD, AM
1600cc replacement engine case






Type 4 Engines (found on 1972-1983 Bus & Vanagon)
CB 1972-73 Bus, 1.7 liter, Dual carb, manual trans
CD 1973 Bus 1.7 liter, Dual carb, auto trans
EB 1973 VW 412, 1973 Porsche 914, Calif emissions, L-Jetronic
EA 1972-74 VW 411 / 412, 1972-73 Porsche 914, 1.7 liter, D-Jetronic

EC
1974 VW 412, 1974 Porsche 914, 1.8 liter, Calif emissions, L-Jetronic

ED
1975 Bus, 1.8 liter, L-Jetronic fuel injected

AW
1973-75 Bus, 1.8 liter

GA
1973-74 Porsche 914 , 2.0 liter, D-Jetronic

GC
1975-76 Porsche 914 , 2.0 liter, D-Jetronic

GD
1976-77 Bus, 2.0 liter, L-Jetronic, Solid Lifter

GE
1978-79 Bus, 2.0 liter, L-Jetronic, Hydraulic Lifter (Same code was used on '78 w/oval exhaust ports and '79 with square exhaust ports.)

CV
1980-83 Vanagon, 2.0 liter, L-Jetronic, Hydraulic Lifter

[vwTattoo]

ok so heres a pic of my engine--any idea on the model?

i dont know much about vehicles so im still learning alot

also i attached pics of the carbs--do you guys recomend a certain dealer for the rebuild kits? and would it be a specific model?

thanx alot for all your help guys
joey

[Wildthings]

A new engine will not solve a problem caused by a bad carb, and a rebuilt or new carb will not solve a problem caused by a bad engine. Don't throw money wildly at your problem. Ask questions and learn what is wrong with your rig. Check the state of your tune up carefully, are your cap and rotor good, are your points and spark plugs fairly new and gapped right? How old are your spark plug wires, are they stiff and light up like fireworks at night? You have bought an old car that is going to need a lot of love and attention.

Having run a progressive for twenty years I would recommend not going that route. 95% of the progressive installs out there are junk, including the one your mechanic will do unless he has lots and lots of T4 progressive experience and you have the dough to pay him for several days of labor. Mostly what you will get with progressives is a new set of problems with no easy solutions.

[Karl]

[busman78]

There is nothing wrong with the progressive, it can be jetted, it will work in chilly climates and if duals intimidate you then it is a viable set up.

Here is the write up for warm air to the progressive.

http://ad-libs-vw-technical.blogspot.com/2007/10/long-awaited-progressive-carb-warm-air.html

[Randy in Maine]

You can probably rebuild these carbs yourself......

http://www.ratwell.com/technical/VacuumHosesCarb.html

http://www.ratwell.com/technical/DualCarbs.html

http://www.ratwell.com/technical/FuelHoses.html

Here is the best adjustment link I have seen fopr adjusting the factorydual solexes......

http://www.thesamba.com/vw/forum/viewtopic.php?t=173175&highlight=dual+solex

Don't go back to that mechanic if he wants to install a weber progressive. Once properly set up, the dual solexes are a nice set up. They are however prone to vacuum leaks with all of the connections, hoses, and stuff.

[Millennium Falcon]

[Bleyseng]