Need better Carb Linkage

[Joe Ricard]

Ok, 74 2.0L with 44IDF's, The current linkage is some kind of swivel link with long rods going to each carb. Some of you guys have re-affirmed my thoughts as this being kinda CHEESY. So this week I might try my havd at making something else. Been Paging through some "Real old" HOT VW magazines. Who can zip out a good picture of thier linkage?

[dman]

Here's a pic othe linkage that came with my carbs from CB Performance. Has the hexagon cross bar, ball joints, very little play.

[Joe Ricard]

Hey thats what I'm looking for. Nice picture Dman. How about a fiberglass unit? very stiff and lighter. Already have the hiem joint pieces. Hmmm stay tuned.

[SteveStromberg]

Stay away from plastic arms they flex. I use Bugpack Fat hex linkage. You can use a type1 by cutting it down as a type4 is narrower. I use Six inch A-C from K-N. Steve

[TGM]

The drawback to the set up shown in the photo is that the throttle actuation effort is really high. I flipped the linkage around so the center pull is pointing up instead of down. This makes the ball joint rods more vertical and mimics the geometry in a rear engine vehicle.

[dman]

TGM, If you could take a picture of your setup I would like to see it because you are right there is a lot of pedal pressure. Did you need to get a new throttle cable because that was one of the determining factors in the orentation of my setup. I used my old one and made a simple bracket that mounted to the fan shroud.

[TGM]

Here's my set up. Not the most elegant bracket in the world but it works. Standard throttle cable works, just replaced mine with a Terry cable from Pelican.

[dman]

Thanks for the photo TGM, nice clean engine bay. I'll have to see if that setup works any better. By the way what kind of ignition system is that. I'm using Pertronics.

[TGM]

Its a Compufire DIS-IX Distributorless Ignition. It works great but Jake Raby had to modifiy the 050 distributor to allow the cap to fit. The interesting thing about this ignition is that it only has two coils so each plug fires on the combustion and exhaust stroke.

[Dave at Pelican Parts]

First, a shot of Matt Romanowski's carb linkage. I took this at the East Coast Ramble back in September.





And finally (if I do the upload correctly), a pic of the bracket that James Bricken--another Pelican Parts Tech Support advisor--installed on his 914 racer.

[Joe Ricard]

Man those are some cool engines. Thanks for all the pictures guys.
So it looks like the HEX bar is joined to each carb somehow. I think I will make a bracket with two sealed bearing each side and a way to compensate for engine growth when warm.

Now it is time to get to work. clean clean clean then paint. Seems like nobody runs with a sound pad in the engine compartment.

[echocanyons]

Heres mine(1.8) sadly my engine comparment is not as clean as the rest

The attachment of my throttle cable is different also I am not sure if this is only functional for the 1.8.

there is also a picture of the throttle carb connection





Kelly

[echocanyons]

oops heres the other pictures:

[James at Pelican Parts]

Dave Darling turned me on to this thread since I just asked to same question last week. He included a picture I sent him of my solution. I thought I would add dialog. The bracket is actually a 944 e-brake switch bracket bolted to the lifting eye near the oil filler. The bracket only required a slight bend and otherwise bolted right up. What you can't see in the picture is the clever way I attached the cross-bar. I didn't get the origional carb mounting brackets for the cross-bar when I got the linkage so I had to make my own. What I did was bored the cross-bar ends and pressed in some 911 swivel-foot rocker adjusters. Then I tapped the choke cover plates and threaded in the adjusters to the proper adjustment between the carbs. Looks good, light weight. Sorry, but I don't have a picture at the moment.

james

[mich914]

TGM

Where are the crankcase breather hoses in the picture running to?

Dan

[dman]

TGM

Where did you get your breather box that all the hoses go to?

Thanks in advance

[TGM]

The breather box is from CB Performance. The hoses run to the tube at the oil fill and to each head which have breather tubes next to the intake manifolds. If your heads don't have vent tubes you can use the fittings in the CB kit to add barbed tubes to the valve cover.

Hey TGM

I was also wondereing about your breather hoses. You said that 2 of them went to the heads and 1 to the oil filler box. What's the other one for?

Thanks!

[Dave at Pelican Parts]

Do you mean the hose with the bolt in the end of it??

TGM, do you have any problem with oil seeping out? I don't see any hose clamps anywhere, and curious if leaking/seeping has ever been a problem with this setup.

--DD

[philinjax]

Joe R,
What's wrong with the central mounted bellcrank with straight rods that operate the throttles? I have that on one of my cars and find it operates smoothly.. When the cross bar linkage came out, many years ago, bug and Porsche owners may have flocked to it because they thought it looked kinda trick. Recent owners of bugs and teeners (the last ten years), for the most part, have not been aware that anything but the "expensive" cross bar linkage existed. I didn't either, til I bought a teener out of a barn in Tallahassee, early last year. Now, I buy new, simple bellcrank throttle mechanisms from Applebee for a third of the CB Performance trick "hex bar".
Am I wrong about this?
Phil