Stock bellcrank on a weber the easy way(welder required)

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splatterdog
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Stock bellcrank on a weber the easy way(welder required)

Post by splatterdog » Tue Oct 12, 2010 8:19 pm

First, shake all the gas out of the old carb and let it air out while the conversion proceeds.

When it's time to hook up the throttle cable- Remove the crank and the piece right behind it on the throttle shaft. A hairpin clip and linkage rod are the only thing in your way. Note their position while removing. Here's what you should have.
10-12-10 078.jpg

On the inner piece everything behind the main plate gets cut off.
10-12-10 079.jpg
Here's what's left
10-12-10 081.jpg
Cleaned up and ready for assembly.
10-12-10 082.jpg

Bolt it back up tight and weld it up. Hopefully I shouldn't have to remind you that all the gas should have been thoroughly shaken out of the old carb and aired out by now.
10-12-10 084.jpg
Welded up.
10-12-10 085.jpg
Then remove and install to weber. The very end of the throttle cable support where the cable goes thru just need a little bend towards the carb for good alignment.

Naturally, results may vary. This information should be used at your own risk and is intended for off road use only. :wink:
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Last edited by splatterdog on Wed Oct 13, 2010 7:00 am, edited 1 time in total.

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ARCHINSTL
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My tercel:: Goldie is a 1986 SR5 attualmente con Weber/also owned the first T4WD in STL in late '82
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Re: Stock bellcrank on a weber the easy way(welder required)

Post by ARCHINSTL » Tue Oct 12, 2010 9:16 pm

Bravo - now a Sticky!
But - you failed to mention that it was also DEFINITELY not allowed in California!
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splatterdog
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Re: Stock bellcrank on a weber the easy way(welder required)

Post by splatterdog » Tue Oct 12, 2010 9:36 pm

Almost forgot about the whole reason for welding the two pieces together in the first place. The weber throttle shaft nut can only be tightened finger tight. That's nowhere near as tight as the stock carb and certainly not enough to keep the bump and hole engaged between the two pieces. The crank must stay aligned to the inner plate as it has the flats or as I like to say "back to back double D". Sounds more fun to me!

I can be easily amused sometimes..

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Petros
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Re: Stock bellcrank on a weber the easy way(welder required)

Post by Petros » Fri Nov 26, 2010 11:14 pm

Is there any reason you could simply first weld these two parts together (before you take them off the throttle shaft), and than remove the two parts and cut off the inner piece? That is presuming you get all the fuel out of the carb.

That way you do not risk welding them together the wrong way.
'87 Tercel 4wd SR5 (current engine swap project)
'84 Tercel 4wd (daily driver, with on going mods)
'92 Mazda MPV 4wd (wife's daily driver)
'85 Tercel 4wd DLX auto(daughter's daily driver)
'01 Honda Civic (other daughter's daily driver)

danzo
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Re: Stock bellcrank on a weber the easy way(welder required)

Post by danzo » Sat Nov 27, 2010 8:55 am

Another Q - wouldn't JB Weld due the trick? It doesn't seem like the joined parts would be under much stress.

I swear I will finally do my swap Monday!
It's a scientific fact that in a twin engine aircraft, when one engine fails there is always enough power in the remaining engine to make it all the way to the crash site.

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splatterdog
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Re: Stock bellcrank on a weber the easy way(welder required)

Post by splatterdog » Sat Nov 27, 2010 12:40 pm

No on the JB weld. A rivet or small nut/bolt could work.

Welding could be done before taking it apart. However, 25 years of gunk buildup gets in the way of good welds. Burning off impurities as you are welding doesn't really work on a couple quick tacks.

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Re: Stock bellcrank on a weber the easy way(welder required)

Post by dlb » Wed Apr 03, 2013 9:14 pm

looking at helping another member with this conversion soon but i don't have a welder. it looks to me like drilling out the bump on the bellcrank and inserting a small nut and bolt (like SD mentioned) through it and the hole of the cut part would work just as well as welding. can anyone else who has done this verify for me though? i don't want to leave another member stranded at my place after i've hacked up his carb.

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My tercel:: Goldie is a 1986 SR5 attualmente con Weber/also owned the first T4WD in STL in late '82
Location: Kirkwood, a 'burb of St. Louis

Re: Stock bellcrank on a weber the easy way(welder required)

Post by ARCHINSTL » Wed Apr 03, 2013 9:22 pm

See first two pix here: http://www.tercel4wd.com/viewtopic.php? ... an+#p33319
Also ripstock's clever installation, if it's possible (he had a longer Weber stud than moi): http://www.tercel4wd.com/viewtopic.php? ... ank#p64995
Tom M.
T4WD augury?
"Oh, do not ask, 'What is it?' Let us go and make our visit."
T.S. Eliot - "The Love Song of J. Alfred Prufrock"
"Now and then we had a hope that, if we lived and were good, God would permit us to be pirates."
Mark Twain

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Petros
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Re: Stock bellcrank on a weber the easy way(welder required)

Post by Petros » Thu Apr 04, 2013 11:56 am

you might also try a pop rivit. either should work, if you use a screw and nut I would put lock-tight on the threads.
'87 Tercel 4wd SR5 (current engine swap project)
'84 Tercel 4wd (daily driver, with on going mods)
'92 Mazda MPV 4wd (wife's daily driver)
'85 Tercel 4wd DLX auto(daughter's daily driver)
'01 Honda Civic (other daughter's daily driver)

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