1978 Porsche 911SC Throttle Cross Bar Kit,
Weber and Zenith* Carburetors

Product Description:

Cross Bar Kit, Weber and Zenith* 3-Barrel Carbs
Includes the reverse lever, pull rod from reverse lever to crossbar, two drop down links from the crossbar to carburetor and two pivot brackets that bolt to the intake manifold with included pivot balls.

*Please Note, when using with Zenith 40TIN carburetors: The original cross bar is no longer available from Porsche, and when using this aftermarket cross bar assembly on cars that are running the Zenith 40 TIN carburetors you will need to make the following changes due to the shape of the bar not being the same as the original.

1. When assembling the ball sockets onto the crossbar at the carburetor end, you will need to space out the ball socket by adding an additional nut to the ball stud before installing and tightening it to the cross bar. This will better position the drop down link so that it is directly above the ball stud on the carburetor linkage.

2. The cross bar preload must be correctly set, otherwise the bar will move back and forth. Refer to the factory manual for more details on this. 

3. The drop down linkages must be adjusted to be as long as possible without interfering with the air filter cans; this will position the cross bar arms to be as high as possible.

4. The cross bar may still need to be modified slightly if you are unable to get full throttle because the linkage is hitting the accelerator pump rod. If this is necessary, mark the linkage where it is hitting the carburetor. Using a small die grinder or angle grinder, carefully remove only as much material as needed to allow the carburetors to reach full throttle. Treat the bare metal with clear lacquer to prevent rust.

5. Finally, adjust the remaining throttle linkages and ensure that the throttle action is smooth and does not bind anywhere through the entire operating range.

If you are uncomfortable with any of these instructions, we suggest that you take the vehicle to an experienced mechanic to install these parts for you. The parts cannot be returned after you have modified them.

Manufacturer Information:

PMO
PMO offers caburtetors of their own design with some key advantages over the factory Weber 3 series. Partsklassik is a PMO distributor. We stock many PMO parts including rebuild kits, jets, tools, and much more. If you don’t see a particular PMO part on our site, please contact us. Full carburetor sets are also available and typically ship in about a week.

Reviews and Ratings:

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all it's ok, thank you!!

Reviewed by DI FUSCO  F

4/12/2019 2:41:39 AM

• 1965 Porsche 911
• 1967 Porsche 911
• 1968 Porsche 911
• 1969 Porsche 911
• 1970 Porsche 911
• 1972 Porsche 911
• 1973 Porsche 911
• 1974 Porsche 911
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• 1976 Porsche 911
• 1977 Porsche 911
• 1985 Porsche 911 Carrera
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• 1987 Porsche 911 Carrera
• 1988 Porsche 911 Carrera
• 1989 Porsche 911 Carrera
• 1978 Porsche 911SC
• 1979 Porsche 911SC
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• 1971 Porsche 914/6
• 1972 Porsche 914/6
• 1973 Porsche 914/6
• 1974 Porsche 914/6
• 1975 Porsche 914/6
• 1976 Porsche 914/6

All returns require pre-approval. All returns are subject to a 25% restocking fee, with the exception of approved warranty returns, or if we ship a different part number than ordered. We do not accept returns after 30 days.

Inspect your order immediately when it arrives. We must be notified within 5 days if there are any missing, damaged, or incorrect parts.

Returns (except warranty) won't be accepted if the part:
 - Has been installed, used, damaged, is dirty or incomplete
 - Is not sellable as new
 - Arrived in sealed packaging that has been opened
 - Is an electrical part, a distributor spring, a custom or cut-to-length item, or a Special Order
 - Was purchased more than 30 days earlier

Parts must be returned properly padded in a sturdy cardboard box. Returns sent in envelopes will be refused. Items damaged in transit to us cannot be refunded. All returns must be shipped prepaid.