Question-getting heat to the chokes

[Deleted User]

In setting up my 308 engine I am using a Clifford dual exhaust header with the Twin H carbs. My concern is getting heat to the Climate Control device on the carbs to activate the chokes. The stock header has holes to insert the heat tubes but the Clifford does not. Any ideas how to get around this?



Thanks for any feedback,

Doug

MikeWA

Do a search on this board, and you'll find several discussions on it over the years. I have the same setup on my car, and have no provision for carb heat at all (chokes are disabled, of course- always open). Its a "fair weather" car, and granted its a little cold-blooded on startup, but I feather the gas for a bit, and soon its running fine. Never had any trouble starting it- but mine is 12 volt, so maybe not so good if 6 volt.

rambos_ride

Mike (WA) wrote:

Do a search on this board, and you'll find several discussions on in over the years. I have the same setup on my car, and have no provision for carb heat at all (chokes are disabled, of course- always open). Its a "fair weather" car, and granted its a little cold-blooded on startup, but I feather the gas for a bit, and soon its running fine. Never had any trouble starting it- but mine is 12 volt, so maybe not so good if 6 volt.

I was just tearing into the pile-o-carbs I've got sitting here and while I was pulling the choke's off - I thought to myself - there must be a electric choke that would cross-over?

Anyone ever looked into this?

dave s

dougc_portland wrote:

In setting up my 308 engine I am using a Clifford dual exhaust header with the Twin H carbs. My concern is getting heat to the Climate Control device on the carbs to activate the chokes. The stock header has holes to insert the heat tubes but the Clifford does not. Any ideas how to get around this?



Thanks for any feedback,

Doug

I bolted piece of stainless pipe strap around header and ran choke tube thru one of the holes with tube flush against outside of headers. As long as copper tube is touching header, it will conduct heat and choke will operate fine.

Unknown

Try wrapping a few turns of choke tubing around one of the header pipes and bring it up toward the carbs. From there, you can can use a compression style tee fitting to direct a tube to each carb.

[Deleted User]

dougc_portland wrote:

In setting up my 308 engine I am using a Clifford dual exhaust header with the Twin H carbs. My concern is getting heat to the Climate Control device on the carbs to activate the chokes. The stock header has holes to insert the heat tubes but the Clifford does not. Any ideas how to get around this?



Thanks for any feedback,

Doug

Go to any NAPA store and ask for a CHOKE STOVE REPAIR KIT. It's a simple fix. Walt.

hudsonguy

To go along with the above listed fixes, if you have access to a machine shop, you can make a small stainless steel block that attaches to the header flange with a small screw. This block has two blind holes on top to capture the tubes coming down from the carbs. I did this recently while I had things apart and was in the process of upgrading to Twin-H, and it worked out well. Nice clean look, virtually free in my case, but certainly it did take some time. I wanted the ability to disconnect the block, or insulate it more if it transmitted too much heat. I put a single silicone gasket behind it, and my chokes work great in all temps.

RL Chilton

Hudsonguy-



I'd like to see a pic of that set-up, please.

drivergo2

Would like to see pictures of all three if you could thanks John drivergo2:)

hudsonguy

I'll take a picture of it tonight, and post it tomorrow.

hudsonguy

I'll try and attach some less than great pictures here.

hudsonguy

That's a #10 screw that's attaching the stainless block to the center of the header flange. I didn't want to drill all the way thru the flange, and luckily there's enough thickness to the flange where I could put a blind tapped hole in there.

RL Chilton

Hudsonguy-



Very clever. Thanks for posting the pics, think I'll be doing something similar.