 carb rebuild question, throttle bearings |
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| tat2dphreak |
 Mar 15 2010, 08:31 AM
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#1
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stoya, stoya, stoya  Group: Benefactors Posts: 8,797 Joined: 6-June 03 From: Wylie, TX Member No.: 792 Region Association: Southwest Region   |
ok, my set of weber 40s... they are old(built in the early 80s by his estimation). my mechanic cannot replace the throttle bearings and thus, they do not idle right once the engine gets warm, it's like they are always slightly "cracked" open, when warm.
is there a place that can rebuild these and make them "new" again? or is it time to start carb shopping? fron what I understand, the new carbs have a plate on the front, and one on the back that can be removed to replace the throttle shaft bearings, but this set only has 1 plate, so the bearings are not replaced(at least by normal means) |
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| ME733 |
Mar 15 2010, 10:50 AM
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Senior Member Group: Members Posts: 842 Joined: 25-June 08 From: Atlanta Ga. Member No.: 9,209 Region Association: South East States |
.........It is entirely possable that the "butterflys" are just bent a little....due to years of not only use but -backfiring thru the carbs....., and the IDLE air bypass screws (the tips) are bent/blunted ....and maybe the idle screws are too....Is it time to rebuild the carbs anyway?....are they grubby, dirty?......?....could YOU rebuild them?....(take them apart and reassemble after cleaning)...?.........
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| tat2dphreak |
Mar 15 2010, 11:38 AM
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#3
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stoya, stoya, stoya Group: Benefactors Posts: 8,797 Joined: 6-June 03 From: Wylie, TX Member No.: 792 Region Association: Southwest Region |
QUOTE(ME733 @ Mar 15 2010, 11:50 AM)  .........It is entirely possable that the "butterflys" are just bent a little....due to years of not only use but -backfiring thru the carbs....., and the IDLE air bypass screws (the tips) are bent/blunted ....and maybe the idle screws are too....Is it time to rebuild the carbs anyway?....are they grubby, dirty?......?....could YOU rebuild them?....(take them apart and reassemble after cleaning)...?......... they were just rebuilt, nd I rebuilt them once before, the idle screw is fine(new) it's all in the butterfly/throttle shaft... basically, there is "play" in the butterfly. they can open a little without the throttle stop coming off of the idle screw. the vacuum from the engine is basically pulling the throttle open a little bit without even putting pressure on the springs I'll call ACE! (IMG:style_emoticons/default/aktion035.gif) I knew there was someplace that rebuilt -6 carbs that I couldn't remember, hopefully they can fix these (IMG:style_emoticons/default/smile.gif) |
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Posts in this topic
tat2dphreak carb rebuild question Mar 15 2010, 08:31 AM
Van On my 44s, the bearing pops right out when you dri... Mar 15 2010, 09:28 AM tat2dphreak yea, that's different than mine :)
on this p... Mar 15 2010, 09:37 AM Vacca Rabite Wayne, I think I have the same carbs that you do, ... Mar 15 2010, 10:06 AM ME733 ............Wayne.... are you trying to say that y... Mar 15 2010, 10:12 AM tat2dphreak from my understanding, yes. I think... what I am r... Mar 15 2010, 10:23 AM Van So, is there anything preventing you from removing... Mar 15 2010, 10:28 AM ME733 ..........Do you have a little mechanical aptitude... Mar 15 2010, 10:31 AM
tat2dphreak
..........Do you have a little mechanical aptitud... Mar 15 2010, 10:37 AM tat2dphreak
maybe I don't?! :confused: if there's... Mar 15 2010, 10:33 AM rhodyguy wayne, contact the folks at Air Cooled Enterprises... Mar 15 2010, 11:09 AM tat2dphreak found a pic of the carb, specifially the back that... Mar 15 2010, 02:07 PM Van Um... have you taken off that nut and looked behin... Mar 15 2010, 02:18 PM ME733 .........YEP.........take off the nutand washer...... Mar 15 2010, 02:33 PM tat2dphreak :huh:
I will take it off one side when I get home... Mar 15 2010, 02:35 PM ME733 ...........well , you were told wrong.....Now arn... Mar 15 2010, 02:41 PM tat2dphreak ok, well, here's the deal, ACE may not be cost... Mar 15 2010, 03:06 PM Van I recently changed my bearings... They were only ... Mar 15 2010, 03:31 PM tat2dphreak cool, where did you get the bearings? also, can on... Mar 15 2010, 03:51 PM Van I say: give it a try yourself!
I think you ca... Mar 15 2010, 05:32 PM tat2dphreak the bearings looked ok, so I called wes, he replac... Mar 15 2010, 09:13 PM Van What number (in that diagram I posted earlier) are... Mar 15 2010, 09:20 PM tat2dphreak according to ACE, and Wes, they are somewhere in t... Mar 15 2010, 09:30 PM Mark Henry I've made bushings before on my mini lathe but... Mar 16 2010, 03:30 AM ArtechnikA Bieker can do throttle shaft bushings. I think he... Mar 16 2010, 04:15 AM Van If the 40 IDFs are manufactured like the 44 IDFs (... Mar 16 2010, 05:32 AM ME733
If the 40 IDFs are manufactured like the 44 IDFs ... Mar 16 2010, 07:28 AM Van
where did you get the screws (diagram #40)for you... Mar 16 2010, 11:43 AM tat2dphreak since the car is dry-docked, maybe I'll try to... Mar 16 2010, 11:47 AM Van
since the car is dry-docked, maybe I'll try t... Mar 16 2010, 01:03 PM tat2dphreak thanks for the info, I'll keep everyone posted... Mar 16 2010, 01:19 PM tat2dphreak ok, who said "linkage"?
because it was... Apr 3 2010, 02:31 PM |
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