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09-22-2015, 08:23 PM | #1 |
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Tillotson Carb Idle
Earlier today I "rebuilt" a Tilly 'X' carb.
Installed on car and started it up. From start up thru warm up, and after, I could not adjust the semi fast idle down at all. All parts are connected properly. Retarding spark all the way caused idle to slow and car started to stall out. Suggestions/recommendations requested. Thanks! Loubob |
09-22-2015, 08:44 PM | #2 |
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Re: Tillotson Carb Idle
Sounds like the float level may not be adjusted correctly.
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09-22-2015, 09:14 PM | #3 |
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Re: Tillotson Carb Idle
just a guess is it possible the throttle plate could be on upside down... on many carbs they are chamfered..
do you have the base idle screw backed all the way out? try disconnecting the throttle linkage also?? vacuum leak... |
09-22-2015, 09:21 PM | #4 |
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Re: Tillotson Carb Idle
My bet would be the throttle plate.
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09-22-2015, 09:24 PM | #5 |
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Re: Tillotson Carb Idle
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09-22-2015, 09:25 PM | #6 | |
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Re: Tillotson Carb Idle
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Quote:
https://sites.google.com/site/mrtexa...ly-carburetors |
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09-22-2015, 09:28 PM | #7 |
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Re: Tillotson Carb Idle
Okay thanks for the info,, I never had the opportunity to rebuild one yet...
Last edited by Mitch//pa; 09-22-2015 at 09:40 PM. |
09-22-2015, 11:10 PM | #8 |
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Re: Tillotson Carb Idle
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09-23-2015, 01:49 AM | #9 |
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Re: Tillotson Carb Idle
Love my Tilly, works great.
Did it do any of that before the re-build? Take it off, take it apart, take your time. Clean every passage, adjust the float, and put it back together slowly. Back the GAV out 1/2 way "before" you seat it.
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Keith Shawnee OK '31 SW 160-B |
09-23-2015, 06:30 AM | #10 |
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Re: Tillotson Carb Idle
Back off the idle speed screw, and make sure the throttle plate closes completely. If it doesn't, then loosen the two plate screws and shift the plate and shaft so the plate is fully closed, then tighten the screws.
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09-23-2015, 09:30 PM | #11 |
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Re: Tillotson Carb Idle
I did not remove the plugs.
Disassembled as much as possible. Soaked all in carb cleaner. Cleaned parts and either replaced or reinstalled. I'm quite sure I installed new main jet. They are a bear to remove. I think I bought it as a "rebuilt." I will redo as suggested next week. Today I built another, from 2, and it runs great......so far. I will give update soon. Thank you as always! Loubob |
09-24-2015, 11:15 AM | #12 |
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Re: Tillotson Carb Idle
Since all passageways have an in & out side, make sure to blowcompressed air both ways to clean out.
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09-24-2015, 12:34 PM | #13 |
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Re: Tillotson Carb Idle
What Tom W says and there are 2 air bleeds in the venturi that need to be really really clean.
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09-24-2015, 12:53 PM | #14 |
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Re: Tillotson Carb Idle
Interesting thread. I am looking for specs on the jets. Any help would be appreciated.
I have a couple I would like to rebuild. |
09-24-2015, 06:07 PM | #15 |
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Re: Tillotson Carb Idle
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09-24-2015, 07:31 PM | #16 | |
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Re: Tillotson Carb Idle
Quote:
https://sites.google.com/site/mrtexa...ly-carburetors |
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