pmc_3
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| posted on 1/5/19 at 08:36 PM |
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Seized twin choke Weber carb
After some advice please chaps. I've got a 32/36 DGAV twin choke Weber carb that i'd like to use on a project. It's in pretty good
nick, linkages are all good, the choke flaps are present and move freely, the primary throttle butterfly moves fine but the secondary throttle
butterfly is seized solid. I've tried spraying it with WD40, put some penetrating oil on it, left it to soak in some old petrol for several
hours but it still won't budge. I managed to get the screws out that hold the butterfly to the spindle but that hasn't helped.
Any suggestions on what to try next?
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Angel Acevedo
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| posted on 1/5/19 at 10:54 PM |
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Ultrasonic cleansing?
Beware of what you wish.. for it may come true....
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cliftyhanger
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| posted on 2/5/19 at 06:08 AM |
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Are the ends of the spindle accessible? If so light tap with a hammer/flat ended punch may help.
Heat is always good, hot air gun should be about right.
It may need an extended soak in a penetrating solution. Old petrol not the best idea. But a mixture of ATK and acetone is apparently "the
best" otherwise WD40, plenty of it over an extended period.
If all else fails, I assume new spindles are available? and butterflies? The last resort is to cut the spindle, knock it out and fit new.
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mark chandler
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| posted on 2/5/19 at 06:42 AM |
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Stick it in a small saucepan with some diesel and cook it for a few minutes
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Benzine
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| posted on 2/5/19 at 06:55 AM |
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Hot oil is king. Engine oil, veg oil, I've unstuck so many things using it. (take care, obviously)
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steve m
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| posted on 2/5/19 at 07:26 AM |
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Are you saying the top butterflies are stuck? as that's part of the choke system, and don't actually need to work on our cars
as a couple of pumps on the throttle and start the engine will do the same thing
I reckon the butterfly bar has been glued in place to stop it closing itself on deacceleration
steve
Thats was probably spelt wrong, or had some grammer, that the "grammer police have to have a moan at
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rusty nuts
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| posted on 2/5/19 at 09:57 AM |
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The OP said the choke flaps are free. WD40 isn’t a penetrating oil , better to use something like Plusgas giving the seized part then maybe heating
with a hot air gun then gently attempting to move the butterfly.
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pmc_3
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| posted on 3/5/19 at 09:07 PM |
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quote:
Originally posted by steve m
Are you saying the top butterflies are stuck? as that's part of the choke system, and don't actually need to work on our cars
as a couple of pumps on the throttle and start the engine will do the same thing
I reckon the butterfly bar has been glued in place to stop it closing itself on deacceleration
steve
Nope just one of the bottom butterflies. The one that opens first is fine but the second that opens with more throttle is seized.
Thanks for the advice guys, i'll try a bit of heat from the heat gun and report back.
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