How about this new Stromberg linkage for the OTB Sling Shot intake? Or any other crazy 2×2 side-by-side carburetor application come to that – like the Frenzel flathead supercharger. In fact we have supplied a couple of made-to-order kits for those. But this is an off-the-shelf kit that will accommodate spacing of up to 6-11/16in. Kit 9263-D.
These are the highlights.
Complete 2×2 non-progressive linkage for ‘side-by-side’ carburetor applications
Unique low-line stainless steel brackets support the Back-bar shaft at four points for zero flex and positive operation. Oilite self-lubricating bushes and two small washers to take up any height difference in the base castings.
Stainless steel Back-bar shaft with two end stops to prevent lateral movement.
Two stainless steel links from the Back-bar levers with Stromberg Linkage Bomb clips (9564K-R) for attachment to the carburetors.
One Stromberg 9096K long lever, which can be positioned anywhere along the Back-bar shaft to align with your throttle pedal ‘pull’ point. Complete with swivel and clamping screw.
Easy to fit. Supplied part-assembled, with instructions!
Want to see the linkage in action? This was an earlier model, but the principle is the same. Twin-plug flathead motor built by Austin Speed Shop and Keith Tardel for our buddy Doc from Louisiana.
Check it out on the Stromberg website right here …
Check out our newest product! Part Number 9168K. Two threaded linkage ball studs with 7mm (0.275in) diameter balls – the same as Stromberg choke and throttle shaft connections. These handy new Stromberg linkage products feature half an inch of thread and nuts are included. Price is US$15.95 or £9.95 depending on where you live.
Use Linkage Ball for Cable Throttle
So where do you use them? For hot rod throttle cable connections! At 0.275in diameter, (others are only 0.25in) Stromberg linkage balls are designed to work perfectly with our 9164K Linkage Bombs and 9166K Rocket Clips. Check out these two applications below. Some aftermarket throttle cables come with a bare cable – use the 9166K Rocket Clip. Some come with a threaded connector swaged to the end of the cable – use a 9164K-R Linkage Bomb (with a right hand thread).
On both applications you simply insert the Linkage Ball in place of the small set screw in the end of the swivel on the lever you are pulling. It clamps the linkage rod perfectly – you can use the small hex on the ball to tighten it. Both use the same 10-32 thread. The lock-nut is supplied for other applications as required.
Here, they are pictured with Stromberg 9091K lever arms (as part of a TwoStep 2×2 direct linkage), and a 9136K Cable Throttle Mounting Bracket.
New from Stromberg. Three cool stainless steel clips that solve so many hot rod linkage problems. There’s one for that pesky oversized Stromberg 97 choke ball so you can quickly convert it to cable operation. And two for the throttle linkage, to replace that spring-loaded old Ford piece that stretches open every time you accelerate!
Stromberg owner, Clive Prew, said “we’re all about about making Stromberg carburetors easier to use in more applications. And these smart new speed parts do that and more, in a cool traditional-looking way.”
First up, the new Stromberg Linkage Bomb (check the shape!), part 9164K-R and -L . They are sized to clip straight onto the bigger Stromberg throttle lever ball (most clips fit a 1/4in ball only). And they’re threaded 10-32 in left and right-hand versions for a 3/16in rod, with included lock nuts and small wrench flats for easy tightening.
Applications? Linkage Bombs are the perfect start for your hot rod pedal-to-carb linkage – use one right and one left and you can twist the rod to adjust the length. It’s also a straight swap onto that swaged end fitting on most hot rod throttle cable kits.
The Stromberg Rocket Clip (part 9166K) is a great new answer for that annoying Stromberg choke lever with its weird (0.275in) size ball! Just slide your choke cable or push/pull wire into the end. Fix it reliably with the the knurled set screw. And clamp the outer sleeve with a Stromberg 9552K-B choke bracket. If your hot rod throttle cable comes with a bare end, of course, the Rocket clip is the perfect answer, especially when used with our 9168K 0.275 inch diameter Linkage Ball.
New Stromberg Linkage Bombs and Rocket Clips are available from Stromberg dealers, worldwide. Prices are just US$15.99 and £8.29 plus tax where applicable. And you can click here to find out more at www.stromberg-97.com
Our 9136K Cable Throttle Bracket is compatible with pretty much all Stromberg 97-based intake manifolds, though some Ford Flathead intakes need a remote fuel pump to work with cable throttle. It’s easy to install, of course, especially if you download our ‘How To: Install 9136K Cable Throttle Bracket’ instructions from the Stromberg Tech Center. Just remember to stick it under the rear carburetor on your intake. And note that on a 3×2 direct linkage, the bracket lifts the rear carburetor a little, so the front two carbs may need packing with extra gaskets (see our kit 69447K) for perfect linkage alignment. On a 2×2 direct or 3×2 progressive linkage, this is not a problem.
Aftermarket throttle cable kits should come with a fitting on the carburetor end of the cable which clips into a small threaded ball. To attach that ball to your Stromberg linkage, simply remove it from the cable end fitting. Remove the small black set-screw from one of the Stromberg linkage swivels. Screw the threaded ball into the swivel (clamping the linkage rod as with the set screw) and clip your throttle cable end back onto it. If you have a 2×2 linkage, fix the cable to the front carburetor. On a 3×2 system, fix it to the center carb, either into the swivel or (on the longer progressive lever) through the lower adjustment hole. Always check that the threaded ball clamps the linkage rod tight.
WARNING! Always double check that you have connected all of the linkages – throttle, choke, accelerator pump – and fuel lines correctly. Manually (and from inside the car), operate the throttle lever and choke mechanism to ensure free movement. Any sticking, binding, or ‘over-center’ movement in the linkage could result in uncontrolled engine speed, property damage, serious personal injury, or death. Always use a throttle return spring.
A few guys have emailed us asking about Stromberg 97 hand throttle parts and how to install them. We don’t supply the hand throttle parts on new Genuine Stromberg 97 carburetors simply because most of the carbs we supply go onto hot rods and the hand throttle is not required. Some guys use the parts off their own 97 when they update to a new model, of course, but if you don’t have the parts try Max Musgrove at 97 Express, who recons a lot of 97s and often has spare hand throttle kits. Email him at email@example.com . If you have parts, here’s how to fit them.
Align the holes and…
The Stromberg hand throttle parts came on the 97, 48, 40, 81 and LZ models. There’s the main lever with the ball on the end, a small collar, a spring and a cotter pin. Note that at the bottom end of the main lever, on the outside edge, half of the circle is missing (you can just see it in the pic). This mates with the tab on the inside edge of the small collar piece. The tab is smaller than the ‘half of the circle’ that is missing on the lever for a reason.
To install it, you push the lever onto the throttle shaft (obviously the other end to the foot pedal throttle bracket). Make sure that the ball is pointing outwards. It should slide right over the throttle shaft bush. If you have a brand new 97, we paint that bush. So you may need to scratch the paint off first. Make sure the lever spins freely on the bush. Then push the spring over the end of the throttle shaft. It goes inside the lever a little at the bottom.
…insert the pin
Now push the small round collar onto the end of the throttle shaft (compressing the spring) so that the tab on that collar fits into the gap (the ‘half a circle’) in the bottom end of the lever. Align the holes in the end of the throttle shaft and the collar and insert the pin. Make sure you get the holes in the correct alignment. You want the lever pointing to about 10pm when you put the pin in vertically. If you do this you will notice that when you pull on the pedal lever, the hand lever does not move because the collar tab rotates in the ‘half a circle’ gap in the lever (mentioned above). Without this, the hand throttle knob would move in and out of the dashboard as you drive. It may need a little adjustment to ensure that the hand throttle knob does not move in normal driving. One more thing. It’s a good idea to support the end of the throttle shaft with a block of wood when driving the new pin, to prevent tweaking it. And if you do use the hand throttle, push it back in to dashboard (the off position) before using the pedal. It’s not like a modern cruise control where the pedals (throttle or brake) automatically overide the hand throttle! Any questions? Email us at firstname.lastname@example.org
Update – 16 Sept 2015.
Max Musgrove sent us some pics of the clever jig they built to support the 97 throttle shaft to fit the hand throttle parts. Thought we’d share them with you.