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What are these reamers for?????

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  • Ron43
    replied
    http://www.chadwickreamers.com/products.php
    I have bought long expanding reamers from the above people for SU carb throttle shafts.
    Ron

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  • nickel-city-fab
    replied
    Originally posted by luthor View Post
    That depends on what you call a classic V8, Ford and Chevrolet used 11/32" - 0.3438"
    Chevy small block used 5/16 valve stems. (going by memory)
    Big block was ... bigger.
    Last edited by nickel-city-fab; 10-12-2021, 11:22 AM.

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  • luthor
    replied
    That depends on what you call a classic V8, Ford and Chevrolet used 11/32" - 0.3438"

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  • nickel-city-fab
    replied
    Originally posted by andywander View Post

    They are all less than 3/8" diameter, so not really that big.
    Hrrmm, OK. Call it an optical delusion. Carb reamers, or as LKeithR said, maybe valve guide reamers? ISTR most of the classic V8's used 5/16 or 3/8 valve stems

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  • andywander
    replied
    Originally posted by A.K. Boomer View Post

    Exactly - little smaller than 8/16" and just a scosh over 2/4ths
    Fixed it, thanks!

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  • A.K. Boomer
    replied
    Originally posted by andywander View Post

    They are all less than 4/8" diameter, so not really that big.
    Exactly - little smaller than 8/16" and just a scosh over 2/4ths

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  • andywander
    replied
    Originally posted by nickel-city-fab View Post

    Yeah, but judging by the size of the paper towel they are setting on, that would have to be one gigantic carb -- and I've done both holleys and q-jets. Seeing something else in the picture, for scale, would help. I do think the smaller reamers shown later could have been used on carbs, but not enough pilot on those.
    They are all less than 3/8" diameter, so not really that big.
    Last edited by andywander; 10-11-2021, 05:02 PM. Reason: typo

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  • nickel-city-fab
    replied
    Originally posted by JRouche View Post

    Actuallaly, the Brits didnt make some of the worst. The French have them beat!! JR
    Fond memories of trying to help a friends teenage son with his 1983 Renault nad zero budget, while living out in the corn.

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  • nickel-city-fab
    replied
    Originally posted by andywander View Post

    If you ever get the chance to ream some carburetor shaft bushings, you will see the reason immediately. The bushings are separated by at least an inch, and maybe as much as 2 or 3 inches.
    Yeah, but judging by the size of the paper towel they are setting on, that would have to be one gigantic carb -- and I've done both holleys and q-jets. Seeing something else in the picture, for scale, would help. I do think the smaller reamers shown later could have been used on carbs, but not enough pilot on those.

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  • Richard P Wilson
    replied
    Clumsy bugger! ( the late Sir John)

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  • JRouche
    replied
    Yeah. Taper reamers are some thing I have and cant use..

    They are supposed to be at a certain depth. Then drwan back. Then a finer taper of the same size to go back in an de-burr it..

    Think of a blind hole when drilling.. I always thought taper reamers were of a certqain, very determind depth. Otherwise you will snap the reamer, gaurenteed. Done it, many times.

    You go passed your diameter you you croak the reamer. JR

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  • Richard P Wilson
    replied
    Is the taper (if any) just the taper that you'd get on the first inch or so of any normal hand reamer?

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  • andywander
    replied
    Originally posted by JRouche View Post

    Yeah, me also. But? Whats the taper about?

    As Ill pointed out, there is a taper, I see.

    The links you are talking about do not want any deviation or taper at all. Throt linkage? Tapers? No thanks.

    All the throttle links I have wotked on were through holes/ Maybe something new comin down the pipe line.

    I like the idea, its a no go. JR

    PS. I did see a car with a "ball" linkage that did use a tapered rod to work with the ball and joint, It never ever worked right, The Italians... Nope, this was a British car. Close enough in my opinion, ''

    Actuallaly, the Brits didnt make some of the worst. The French have them beat!! JR
    I don't see a taper in the photo, but you may be right that there is one.

    But that doesn't rule it out for making un-tapered holes; you'd just have to pass it completely through the set of bushings.

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  • JRouche
    replied
    Originally posted by Illinoyance View Post
    I am going to vote for throttle shaft reamers.
    Yeah, me also. But? Whats the taper about?

    As Ill pointed out, there is a taper, I see.

    The links you are talking about do not want any deviation or taper at all. Throt linkage? Tapers? No thanks.

    All the throttle links I have wotked on were through holes/ Maybe something new comin down the pipe line.

    I like the idea, its a no go. JR

    PS. I did see a car with a "ball" linkage that did use a tapered rod to work with the ball and joint, It never ever worked right, The Italians... Nope, this was a British car. Close enough in my opinion, ''

    Actuallaly, the Brits didnt make some of the worst. The French have them beat!! JR
    Last edited by JRouche; 10-09-2021, 05:17 AM.

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  • Richard P Wilson
    replied
    So is the lead end pilot slightly smaller dia then the flutes, and the tailend 'pilot the same dia as the flutes? if so, I'd go for throttle shaft reamers a well. Are the reamers all the same dia, or are they different?

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