old rochester 2brl from thermostatic to electric choke

Ryanlewis2010

Petty Officer 1st Class
Joined
Oct 4, 2011
Messages
314
hi there i just rebuilt my carb and engine and now i have to replace my manifold ( long story find it in my post's) but new manifold might not have choke stove so is it possible to switch to electric choke its a 1972 merc 140 Rochester 2brl
 

120_i/o

Petty Officer 3rd Class
Joined
Jan 21, 2012
Messages
76
Re: old rochester 2brl from thermostatic to electric choke

Hi Ryan, Im sure it is possible to swap the choke parts over to electric. Being that age, it will more than likely have screws rather than "reevets" (saw reevets on another thread LOL had to say it) holding the cap on, so no drilling. Being it is a rochester, parts are ALL OVER, and flea bay is a great place to find that stuff used. J.C. whitney did sell a conversion kit, but I dont know if they still do? The main thing about the swap is to change the spring. The air spring, and electric spring are two different animals. Once together, a wire that is switched with the ignition will have to be run to the blade connector on the choke. However, dialing them in can sometimes be a pain in tha *** for folks that are unsure on how to set them.
Im not so sure about fitment, as rochester made hundreds, and hundreds of different styles. If unsure maybe contact J.C. Whitney, or these people. http://www.thecarburetorshop.com/Carburetor_ID.htm
Good luck, and let us know your outcome.
 

cr2k

Captain
Joined
Mar 19, 2009
Messages
3,730
Re: old rochester 2brl from thermostatic to electric choke

Make sure the electric choke spring rotates the correct direction when warm. Most don't.
 

Ryanlewis2010

Petty Officer 1st Class
Joined
Oct 4, 2011
Messages
314
Re: old rochester 2brl from thermostatic to electric choke

alright now how would one wire an electric choke?
 

Bondo

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Apr 17, 2002
Messages
71,095
Re: old rochester 2brl from thermostatic to electric choke

alright now how would one wire an electric choke?

Ayuh,... The Power comes from the ignition circuit, 'n then the ground...
 
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