How do I fix that ??

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Larry e rutt
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How do I fix that ??

Post by Larry e rutt » Mon Aug 02, 2021 8:09 pm

So I'm cruising along, and all of a sudden my motor starts running ruff, really ruff..I found carburetor troubles...how do I fix that, put that flapper back there on that pin, just can't get at it.. I have the parts I need from an old carburetor.. any help would be great thanks
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Steve Jelf
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Re: How do I fix that ??

Post by Steve Jelf » Mon Aug 02, 2021 9:36 pm

I don't recognize that. What is it?
The inevitable often happens.
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Dan Haynes
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Re: How do I fix that ??

Post by Dan Haynes » Mon Aug 02, 2021 9:43 pm

The only way to do it is to just do it. Those vaporizers were assembled by human hands by the hundreds of thousands and people have been taking those flappers off and putting them back on for 95 years. You can do it.
"The further a society drifts from truth, the more it will hate those who speak it." -George Orwell

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TRDxB2
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Re: How do I fix that ??

Post by TRDxB2 » Mon Aug 02, 2021 10:31 pm

Many more pictures and explanations in this link http://www.mtfca.com/discus/messages/82 ... 1529609068
Lang's lists the parts https://www.modeltford.com/pl.aspx?t=s& ... zer&page=1
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Jack Putnam, in Ohio
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Re: How do I fix that ??

Post by Jack Putnam, in Ohio » Mon Aug 02, 2021 10:33 pm

Steve: That is part of a vaporizer carb.

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Steve Jelf
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Re: How do I fix that ??

Post by Steve Jelf » Mon Aug 02, 2021 10:47 pm

I suspected it might be, but I've never had a 27. :)
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hbarbee
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Re: How do I fix that ??

Post by hbarbee » Mon Aug 02, 2021 11:05 pm

You may have a real problem there. I don't know how those 2 screws and pin that hold the air damper could have fallen out. Refer to the choke/throttle assembly diagram in the above referenced link. If you do not still have all those 4 pieces, they are not available from Lang's. To reinstall the damper, you would have to remove either the throttle or choke plate in order to hold it in place. The lever and rod assemblies for those are available from Lang's if you damage yours in the removal.

When I was restoring my vaporizer for display (refer to my recent post) I did a dumb thing and removed those screws to polish them and that damper fell out. I did not put it back in, just kept it.

If you don't have the parts that fell off, you can buy a complete used vaporizer assembly on ebay and get the parts off of that.

Or you could do as I did and buy the NH conversion kit and retire the vaporizer.


Topic author
Larry e rutt
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Re: How do I fix that ??

Post by Larry e rutt » Thu Aug 05, 2021 8:54 pm

Well now I know how to fix that...take the choke assembly out, balance the flapper on your finger, slide the bowl over it and stick the pin back in...with the tools and knowhow you could probably do it in 20 minutes, it to me 2 hours...I don't know what that flapper does but it makes my car run along better...thanks


OilyBill
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Re: How do I fix that ??

Post by OilyBill » Fri Aug 06, 2021 9:43 pm

I used a set of fine 90 degree needle nose Snap-On pliers. You grip the weight, put it in place, and looking through the side hole, you align it and install the one screw that has the shaft on it. Then you install the other side screw by looking at the opposite side and lining it up.
Putting it in was not a problem for me. It took about 30 seconds.
HOWEVER! I found out the replacement screws and shaft were NOT machined correctly, and when the screws were tightened, they bottomed out against the weight flapper, and locked it up. It required a couple assembly/disassembly trials and trips to the lathe to take off a few thousandths from the excessively long parts, before I finally got it completely installed, and totally free to rise and fall. The only thing that moves it is the incoming air.
There is no linkage or other attachment to this air weight.
The weight hangs down, and opens depending on the airflow through the carb throat. The screw at the center top is a limiter, and I measured mine and found it to be .875" long. The limiting screw is tightened all the way down, so I assume the adjustment for travel is a fixed point set at .875" length.

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