Accelerator Swivel Bushing; gm 3707713

[Gary B.]

Re: Accelerator Swivel Bushing; gm 3707713

Gary, I have a '66, 350h.p. that has the narrow flange bushings at both ends of the rod. It is VIN 11,xxx. The car is in survivor condition and has been off the road since about 1970. Perhaps there were some bushing changes during the year.

Ken,

My current guess is that the narrow flange bushing was used during the '66 model year (well past Nov of '65 when David L says it was replaced) until production inventory in 1966 was exhausted and then the large flange bushing took its place. I'm trying to obtain some photos of the Bowtie '66 that Matt Lewis used to own to see what they show. Matt's car was from later in the '66 production year.

Gary

[John D.]

Re: Accelerator Swivel Bushing; gm 3707713

Narrow flange is correct. There is a repro but the color of the plastic isn't correct.
You didn't ask but what about the rubber gromet. (not sure what it's called. My 63 has an original rubber one The outside is smooth. The inside has teeth. Notches.
Very rare. Dont' know how far up in years this was done.
Jorjorian told me it's extremely rare for a car to have this rubber with the notches or teeth on the inside.

[Alan D.]

Re: Accelerator Swivel Bushing; gm 3707713

John, my Mar64 has the rubber with teeth and the small yellowish bushing.

[Gary B.]

Re: Accelerator Swivel Bushing; gm 3707713

John,

Do you mean the narrow flange was used for all C2 years? If so, what was the change from GM # 3707713 to GM # 3866271 in November 1965 that David L. mentions.

Gary

[David L.]

Re: Accelerator Swivel Bushing; gm 3707713

I just found the rod and narrow flange bushing that came with the very original 1966 Chevrolet 327 engine (with "180" block, May 1966) that I bought decades ago from a salvage yard in Orange, MA. The engine came with the original carb, starter, alternator, distributor, etc. All the dates on the components matched the engine date so I am 99.999999% sure that the narrow flange bushing is original.

Dave

[John D.]

Re: Accelerator Swivel Bushing; gm 3707713

John, my Mar64 has the rubber with teeth and the small yellowish bushing.

Alan, Cool. You do not see that today. Nice original touch. I have never seen one on a restored car. It's one of the things I quietly look at.
So it was used to at least March 64.
Jorjorian knows the info on this rubber. Maybe he will chirp in. John

[Marc K.]

Re: Accelerator Swivel Bushing; gm 3707713

My February '66 car has the rubber grommet with the teeth which houses a narrow bushing on the accelerator rod closest to the firewall. I believe this to be original to the car. Unfortunately, the carburetor wasn't born with the car.

[Gary B.]

Re: Accelerator Swivel Bushing; gm 3707713

Gary,

According to Chevrolet Parts History GM # 3707713 was replaced with GM # 3866271 in November 1965. I'm sure that the 3707713 sleeves were still on the assembly line for a long time after November 1965 and were used until they were gone. Your photo of the wide flange sleeve looks more like the 3866271 sleeve. Enclosed is a link of a NOS 3866271 sleeve that I found on the web.

Dave


http://www.oldsobsolete.com/products...e-nos-3866271/

Dave,

I'm confused by one thing. You say that 3707713 was replaced in Nov 1965 by 3886271, but 3707713 continued to be listed in the '66 and '67 AIM. Do you know how that's possible?

Gary

[John D.]

Re: Accelerator Swivel Bushing; gm 3707713

I can see this post is quite difficult to follow. So I am out of here as behind in my work.
My friends May 66 small block car has the rubber grommet with teeth. Also has a filthy white sleeve that has narrow flange.
I used to make the narrow flange ones guys. Took the wide ones and cut them down.
Have fun. John

[David L.]

Re: Accelerator Swivel Bushing; gm 3707713

Dave,

I'm confused by one thing. You say that 3707713 was replaced in Nov 1965 by 3886271, but 3707713 continued to be listed in the '66 and '67 AIM. Do you know how that's possible?

Gary

Gary,

GM # 3707713 is listed Gr. 3.425 in my 1966 Chevrolet Parts Catalog (Oct. 1965) for the following:
54-62 PASS.
56-62 CORVETTE
The description is accel. rod SLEEVE, 1/4" I.D. X 3/8" O.L. - nylon.

According to Chevrolet Parts History GM # 3707713 was replaced with GM # 3866271 in Nov. 1965. These are service parts, not assembly line parts.

My 1967 Chevrolet Parts Catalog (Apr. 1967) lists the sleeve as nylon with the same dimensions as previously mentioned in Gr. 3.425 as GM # 3866271 for "ALL" models.

I'm sure that there were many thousands of 3707713 sleeves still on the assembly lines as well as in the manufactures's warehouses after Nov. 1965. I have seen where parts have been discontinued in the parts catalogs but still appear in the assembly manuals after being discontinued.

Dave

[John H.]

Re: Accelerator Swivel Bushing; gm 3707713

I'm sure that there were many thousands of 3707713 sleeves still on the assembly lines as well as in the manufactures's warehouses after Nov. 1965. I have seen where parts have been discontinued in the parts catalogs but still appear in the assembly manuals after being discontinued.

Dave

Dave -

I agree with you and J.R. - I got out of phase with this one. Some "paper" says the narrow-flange 7713 was replaced by the wide-flange 6271 after late 1965, and other "paper" (A.I.M., etc.) says it didn't, while the P&A 30B book (1972 edition) says the wide-flange 6271 replaces the narrow-flange 7713 for ALL '53-'69 Corvette usages in Grp. 3.425 (for Service). Original/Bowtie cars may help define the Corvette breakpoint.

[Marco H.]

Re: Accelerator Swivel Bushing; gm 3707713

Gentlemen,
The serrated grommets and small flange opaque bushing sleeves have been observed on original cars throughout the Midyear production.
Marco