I am trying to install the gas pedal in my car and I have issues (be nice). I need help from anyone who had to install their linkage up to a blower, tunnel ram, slingshot, etc. I have a 471 on top of a Navarro manifold, 8BA, 3 97's on top of the blower/carb adapter. To say the least it is tall, my carbs are breaching the hood line without air scoops. Enough background. We have all talked in previous posts about cable linkage (devil's appendage) being used and aside from their appearance (not too good it seems) we have said that the cables should never be "ess" bent or flexed greatly to avoid throttle jams. My throttle pedal wants to come through the firewall about 15 or so inches under the Stromberg's progressive linkage. A big sweeping ess is going to look like *** and may not be safe. I need to see some ideas on how to engineer a throttle ***embly (hard linkage or a combination of the two) so I can build a reliable and safe linkage system. Any help is appreciated, close to finishing mock up and I need to get this part tackled. This is not a recent photo but close enough for this question. The lower arrow is where the offenhauser pedal wants to exit the firewall. The top line is the height of the 97's progressive linkage so you can see the elevation climb I have to make. There are 3 holes in the left Navarro head for the oil filtration system that I will not be utilizing (at least not on the head). I was thinking I could incorporate the lower mount there but my mount will move with engine torque if I do. I was thinking about using a cable from the pedal to the lower bell crank mounted here (to absorb the torque flex?). I was thinking the top could be anchored with the rear carb and extra gasket. 2 bell cranks, a riser tube, some linkage bars? Make it out of stainless or aluminum and polish it (could use a bit more gleam and glitter). Bearings maybe in the ends? If you have pictures and advice I am in need of both.
Billy Kind of hard giving specifics having not seen your particular deal in person. I simply Googled "throttle linkage bellcrank" and came up with a plethora of ideas. https://www.google.com/search?q=thr...ved=0ahUKEwjOy5-0udrKAhVM8GMKHbtaAwkQ_AUICCgC A little time spent studying some of these diagrams may help. Knowing what hardware is available (with pictures) is half the battle. If your more of a hands-on guy, some of this stuff can be made and/or pieced together with various components, in most cases store bought universal kits seldom cover all the bases.
Look at this banger with dual carbs. Might spark an idea. http://www.jalopyjournal.com/forum/threads/lame-power-plants.1007294/page-4#post-11370588
Just saw this post....Thinking out loud here....just trying to help.....This is a big if....if you do not mind a small u cable..you could engineer a bracket at maybe head/intake manifold height ...kinda like a clutch deal...then have a short u cable(bottom of u facing front of motor)...up to carb flange height with plate/arm... So when pedal is pushed it pulled throttle towards firewall...??did that make any sense at all?...,
When I built my 56 Dodge pickup a few years ago, I used an accelerator cable ***embly from an 80s Jappa ute.. Not sure if it was a Nissan, Isuzu or Toyota, but where the cable came thru the bulkhead from the pedal, it had a bolt on alloy mount enclosing a 3'' ?? guide wheel (this allowed a 90 degree angle change). The cable was about 2' 6'' in length approx.. It worked really well and was an easy fit..
Thanks as always Denny, I have been on-line but the options look too commercial? Not sure if that was the word I was going for but you get my meaning I trust. I have seen a few at shows that had style and functionality without being "steampunk" which you can do in a hurry when putting gears together. Somewhere in the middle is what I am after. Maybe i can use some of those ideas on-line and make them my own. I appreciate the responses, I like the idea of running the cranks from a cable initially like Oldtffdriver mentions. In my OP I mentioned that i thought it might also reduce the motor torque from effecting the throttle by isolating it from the firewall. Sort of the same idea that intheweez cam up with, Id like to see that throttle cable. I checked out the link on the banger, I had seen that before and it is cool but a bit too steampunk for my engine bay. It look cool in his with his fuel system on the firewall, if it looks too "Jules Verne" it wont fit what I am building. Make sense? If there is more, I'm listening.
It is kind of hard to see from this picture, but I fabbed a pivot arm off the back of the blower case that attaches to the stock s**** pedal linkage on the bottom and to the lower linkage on the carb off the top. This set up has worked flawlessly for nearly a decade of abuse.
Try this link. Might be stuff here you can utilize...,http://goodvibesracing.com/Enderle_Linkage_Kits.htm
Russco, it is really hard to make out anything in that pic. I saved it and opened it in MS Office where I could enlarge and sharpen but it is not high enough quality to blow up. If you can get a better picture I would be grateful. That link to the linkage site is very cool. If nothing else it is giving some ideas on how to make a good looking system.
Maybe give you ideas. I realize it's Holleys riding side saddle but you can see how the arms and linkage can be setup to move stuff as required after it transitions from the throttle cable.
I think I have an idea. I am going home tonight to mock up 2 bell cranks, one that will mount to the rear Stromberg and the other I will build a mount to the left head. I have some 1/8" aluminum that I thought I would make four arms out of (carbon copies of each other about 3 inches in length) and then pound some br*** rivets through them and lightening holes. I have measuring to do but probably set at 90 degrees. I also bought a couple of small bearings for the center of the bell cranks. Once mounted, I can measure for rods and heim ends. These pictures really help. Ill post up my solution as soon as I have it out of my head and onto the motor. You guys rule. Thanks. Oh and 4thhorseman, that looks ridiculous...in a scaring old ladies, small children and Prius drivers sort of way.
Done that many times Billy, even used heavy cardboard at times when nothing else was available. Not sure your plans on rod ends but I'd consider 10-32×3/16" male rod ends.
I spent some time on the linkage this weekend since there was no football on TV. I mocked up a couple of paper templates. The bottom one uses the head bolts for the oil filter, the top is under the carb gasket on the rear 97. they line up well, the question is do I use bearings or just bushings? I figured I would contact Clive tomorrow at Stromberg and get 4 chrome carb linkage levers and use them top and bottom. Pics: Top bracket under the rear carb, cur from one piece of stainless. Needs lightening holes. Bottom bracket using the oil filter mounts Also one piece of stainless. The inside of the bottom bracket and the outside of the top bracket line up. I figure I would tie the pedal to the outside of the bottom bracket. The inside of the bottow bracket will connect to the outside top and the inside top to the center 97. So, next question, do I use bearings or bushings to support the rod? I figure a cross rod welded in will keep the structure uniform, insert a .275" rod. Add 4 Stromberg center carb linkage levers and it should look and work good.. I will make the brackets in thin aluminum before building with stainless. I need you opinion on the bushing vs the bearings.
Billy Are you talking about mounting a belcrank on those two upward pointing tabs? Most small belcranks have an integral bearing. Regarding bushings; best suggestion is oilite bronze, a self lubricating bushing.
Denny, I'm thinking about building my own using Stromberg arms so it matches my carb linkage. Clive can sell me the pieces. Here is an excerpt from he email I sent him this morning, it is crude as it is drawn with my mouse. You can see the idea I have of making a bracket, using .275" carb main shaft and the Stromberg arms. I just need to support that rod with bushing or bearings. Maybe I am over thinking this, maybe a flat bracket and mount support bearings to hold the rod rather than the uprights I have designed? did that make sense Denny? I fashioned these brackets so they be made from one cut of stainless, no welding. The brackets I show here would be 1 1/2" wide, 1 1/2" tall. There is a 3" move necessary from the outside of the lower bracket so it lines up with the pedal to the inside of the upper bracket so it aligns with the center carb lever. Thus the 1 1/2" brackets.
Looks good for the most part Billy. Two thoughts though; your bracket (pattern) has a somewhat oem stamped steel bracet look about it. Just like a lot of the shots I found on my Google Image "throttle linkage/belcrank" search suggestion previously. I say this because the oem look bracketry kind of clashes with the hot rod/blown flatty vibe you got going on. The other thought is; that .275 shaft dimension does not equate to any standard size for bearings, bushings, rod ends, etc. or common reamer size, which may be required to get two "oilite" bushings to be lined up and/or reamed to get them "looking at each other". Clear as mud right!
Denny, I did not think this was going be so complicated when I started thinking about mechanical linkage. You are correct, the brackets start to look too "calcustom" ..."not that there's anything wrong with that" as Seinfeld would say.
I knocked out some pieces in thin aluminum tonight (what I do before wasting money on stainless), changed the approach a bit. Any better Denny? I am thinking of running over to the hardware store tomorrow and looking for some short bearing retainers rather than my first idea of the triangular brackets. like this then mount them to a stainless steel bracket in line with the carb linkage And perhaps the "piece de resistance"...(You know you like it), just needs a buff and a hole to bolt it on.
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