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Author Topic:   choke alternatives
mtucker
Journeyman

Posts: 93
From: Wichita, KS
Registered: Oct 2002

posted 11-12-2002 04:02 PM     Click Here to See the Profile for mtucker   Click Here to Email mtucker     Edit/Delete Message   Reply w/Quote
Hello everyone. Got 69 coupe up and running this weekend. Installed a new MSD ignition and rebuilt the carb. I have a question about the choke. The choke heater tube broke. I know it's fairly easy to replace. Is there a better alternative to this? Are there any electric choke conversions that can be done? If so, do I need to cap off the place where the heater tube would normally connect to? Should I remove the piston in the choke housing? In the past, junk from the exhaust manifold would jam up the piston in the choke housing. Thanks for any light you can shed on this.

------------------
1999 F150 supercab, V6 5-speed. Bone stock.
1969 Mustang Coupe, a work in progrss.

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Fastymz
Moderator

Posts: 12015
From: Reno Nv USA MEM#1240
Registered: Apr 2001

posted 11-12-2002 04:23 PM     Click Here to See the Profile for Fastymz   Click Here to Email Fastymz     Edit/Delete Message   Reply w/Quote
What kind of carb do you have?


SCOOP

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mtucker
Journeyman

Posts: 93
From: Wichita, KS
Registered: Oct 2002

posted 11-12-2002 05:43 PM     Click Here to See the Profile for mtucker   Click Here to Email mtucker     Edit/Delete Message   Reply w/Quote
Sorry, Autolite 2100. It's a 302.

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Fastymz
Moderator

Posts: 12015
From: Reno Nv USA MEM#1240
Registered: Apr 2001

posted 11-13-2002 01:14 PM     Click Here to See the Profile for Fastymz   Click Here to Email Fastymz     Edit/Delete Message   Reply w/Quote
Sorry I dont know much about that carb.Lets wait for one of the experts to come along.

SCOOP

------------------
oddly obsessed with big scoops on little Mustangs

2.26 60'S
14.9 @ 90.86MPH

65 coupe,351w,C4,Big Boss 429 hood scoop,8"3.40 TracLoc,Cragar SS,Black Suede.

https://mustangsandmore.com/ubb/Fastymz.html

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Fastback68
Gearhead

Posts: 1746
From: Sucat, Paranaque, Philippines
Registered: Jul 99

posted 05-28-2003 03:38 AM     Click Here to See the Profile for Fastback68   Click Here to Email Fastback68     Edit/Delete Message   Reply w/Quote
Here's an interesting thread that died prematurely

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KULTULZ
Gearhead

Posts: 340
From: Rockville, MD
Registered: Oct 2002

posted 05-28-2003 09:31 AM     Click Here to See the Profile for KULTULZ   Click Here to Email KULTULZ     Edit/Delete Message   Reply w/Quote
A HOLLEY electric choke kit should work on either the 2100 or 4100 AUTOLITE as the choke caps are the same size and similiar in operation. It might require a bit more tweaking to get it adjusted correctly.

Hmm....Maybe I should try reading the complete post before responding...

quote:
  • If so, do I need to cap off the place where the heater tube would normally connect to?
  • Should I remove the piston in the choke housing? In the past, junk from the exhaust manifold would jam up the piston in the choke housing
.

Yes...You need to cap the fitting where the riser tube goes into the choke housing. This will be an open vacuum draw if not done. You can buy fancy brass block-off fittings at your plumbing supply (SAE or pipe thread).

Yes...Remove (and keep) the piston as you don't want anything dragging on the choke mechanism once converted over.

[This message has been edited by KULTULZ (edited 05-28-2003).]

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Fastback68
Gearhead

Posts: 1746
From: Sucat, Paranaque, Philippines
Registered: Jul 99

posted 05-28-2003 10:29 AM     Click Here to See the Profile for Fastback68   Click Here to Email Fastback68     Edit/Delete Message   Reply w/Quote
Thanks and on behalf of mtucker too if he still remembers this thread. It fizzled six months ago. Just one question: Are these Holley electric chokes a "period" piece I can find on a '60s/'70s junk car?
Oh yeah, and I've always wondered what non-Brits meant by SAE! To me, that's a stamped addressed envelope (although there are fellas who say it's a "self-addressed envelope").

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Fastback68
Gearhead

Posts: 1746
From: Sucat, Paranaque, Philippines
Registered: Jul 99

posted 05-28-2003 10:43 AM     Click Here to See the Profile for Fastback68   Click Here to Email Fastback68     Edit/Delete Message   Reply w/Quote
OK, got it A quick web search reveals that SAE also means the American Society of Automotive Engineers!

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indyphil
Gearhead

Posts: 877
From: Lafayette, IN, USA
Registered: Jul 2002

posted 05-28-2003 11:44 AM     Click Here to See the Profile for indyphil   Click Here to Email indyphil     Edit/Delete Message   Reply w/Quote
NPT is usually used (I think it means National Pipe Thread) I think they are tapered.

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'68 coupe 289 C code
66 heads, edel 600cfm carb, performer intake, dual exhaust

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KULTULZ
Gearhead

Posts: 340
From: Rockville, MD
Registered: Oct 2002

posted 05-28-2003 11:48 AM     Click Here to See the Profile for KULTULZ   Click Here to Email KULTULZ     Edit/Delete Message   Reply w/Quote
quote:
Are these Holley electric chokes a "period" piece I can find on a '60s/'70s junk car?

You will find them on the 4180 Series of the early eighties...The motorcraft 4100 A and D series of the mid/late seventies also.

Of course, you could just buy the kit as the caps will most likely be weakened off an old car.


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KULTULZ
Gearhead

Posts: 340
From: Rockville, MD
Registered: Oct 2002

posted 05-28-2003 02:03 PM     Click Here to See the Profile for KULTULZ   Click Here to Email KULTULZ     Edit/Delete Message   Reply w/Quote
quote:
Just one question: Are these Holley electric chokes a "period" piece I can find on a '60s/'70s junk car?

Let me clarify myself as I see you are from over the pond...

The HOLLEY electric choke kit comes with some hardware you will not need for the FORD conversion. I am not sure if they sell the thermostatic cap seperately, but this cap and associated hardware is all you need to convert the early FORD carbs. It also comes with a choke housing, but this is only for the HOLLEY. Basically what you are doing is upgrading the origional engine heat cap to the new electric activated cap.

As for period pieces, HOLLEY came through with basically the same choke setups as used on the AUTOLITE series. If you take an electric cap off a later 4180 series or MOTORCRAFT 4300, they are calibrated for emissions (fixed position) so as not to be able to adjust choke tightness without modification.


-Choke Conversion Kits-

I hope this made sense.

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