Need Advise on Vaporizer Carb Overhall
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BLB27
Topic author - Posts: 892
- Joined: Thu Jul 23, 2020 9:28 pm
- First Name: Bruce
- Last Name: Brakke
- * REQUIRED* Type and Year of Model Ts owned: 1927 coupe
- Location: Ames, Iowa
Need Advise on Vaporizer Carb Overhall
I have disassembled my vaporizer and the float good. Should I replace it just to be on the safe side? I could submerge in gas to check for leaks.
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TFowler
- Posts: 21
- Joined: Fri Feb 01, 2019 9:56 pm
- First Name: Todd
- Last Name: Fowler
- * REQUIRED* Type and Year of Model Ts owned: 1927 Tudor Saloon
- Location: Bedford VA
Re: Need Advise on Vaporizer Carb Overhall
If your float is brass/tin you can submerge it in hot (near boiling) water.....if you see air bubbles coming out of the float it has pinhole(s) and should be sealed or replaced. If it is good ...use it. FYI I had issues with the replacement gross jet float valve restricting flow and causing engine to die (starve) at open throttle......I cleaned and used the original needle valve and that fixed the issue.
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BLB27
Topic author - Posts: 892
- Joined: Thu Jul 23, 2020 9:28 pm
- First Name: Bruce
- Last Name: Brakke
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Re: Need Advise on Vaporizer Carb Overhall
I purchased a replacement seat/needle unit that the float activates. The needle tip is neoprene. Is that better than or as good as the normal metal tip?
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Dan Hatch
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Re: Need Advise on Vaporizer Carb Overhall
You guys need to look into Scott Conger made Full Flow float valves. I run them on all nh carbs I rebuild. Should work on a vaporizer too. Dan
He also made a tool to remove said float valves. Works like it should. Dan
He also made a tool to remove said float valves. Works like it should. Dan
Last edited by Dan Hatch on Thu Oct 15, 2020 5:56 am, edited 1 time in total.
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TFowler
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- Location: Bedford VA
Re: Need Advise on Vaporizer Carb Overhall
Bruce
Go ahead and give the neoprene needle a try.......if it gives you problems it is easy to switch out a different float valve with the carb on the car.
Go ahead and give the neoprene needle a try.......if it gives you problems it is easy to switch out a different float valve with the carb on the car.
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Altair
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Re: Need Advise on Vaporizer Carb Overhall
Rubber tipped needle valves were introduced in the mid 50s. It was determined that the steel needles were becoming statically charged with the fuel passing them and causing small metallic debris to stick to the needle causing over fueling. The rubber tip would prevent the static charge.. If the tank is spotless there will be no issue, however if there is any metallic debris over fueling could occur.