What are these reamers for?????

[Ron43]

http://www.chadwickreamers.com/products.php

I have bought long expanding reamers from the above people for SU carb throttle shafts.
Ron

[nickel-city-fab]

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.

[luthor]

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

[nickel-city-fab]

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

[andywander]

Exactly - little smaller than 8/16" and just a scosh over 2/4ths

Fixed it, thanks!

[A.K. Boomer]

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

[andywander]

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.

[nickel-city-fab]

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.

[nickel-city-fab]

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.

[Richard P Wilson]

Clumsy bugger! ( the late Sir John)

[JRouche]

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

[Richard P Wilson]

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

[andywander]

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.

[JRouche]

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

[Richard P Wilson]

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?