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12v Electric Choke Wire Help

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Gary Lewis

Re: 12v Electric Choke Wire Help

Administrator

If you don't have the oil pressure switch then the red/yellow wire isn't going to help.

I'm thinking that it is time to fall back to the idea of a relay triggered by the stator wire from the alternator. If you agree then I will work on a schematic for that.

Gary, AKA "Gary fellow": Profile

Dad's: '81 F150 Ranger XLT 4x4: Down for restomod: Full-roller "stroked 351M" w/Trick Flow heads & intake, EEC-V SEFI/E4OD/3.50 gears w/Kevlar clutches
Blue: 2015 F150 Platinum 4x4 SuperCrew wearing Blue Jeans & sporting a 3.5L EB & Max Tow
Big Blue: 1985 F250HD 4x4: 460/ZF5/3.55's, D60 w/Ox locker & 10.25 Sterling/Trutrac, Blue Top & Borgeson, & EEC-V MAF/SEFI

FormerBigDaddy

Re: 12v Electric Choke Wire Help

Sounds good

1984 F350 460 Auto

Gary Lewis

Re: 12v Electric Choke Wire Help

Administrator

Ok, I'll work on it......

Gary, AKA "Gary fellow": Profile

85lebaront2

Re: 12v Electric Choke Wire Help

Administrator

Pretty simple, look at the 351 HO circuits, but stator wire to one side of the relay coil, other side to ground, 30 to B+ (can be switched) 87 to choke.

Bill AKA "LOBO" Profile

"Getting old is inevitable, growing up is optional" Darth Vader 1986 F350 460 converted to MAF/SEFI, E4OD 12X3 1/2 rear brakes, traction loc 3:55 gear, 160 amp 3G alternator Wife's 2011 Flex Limited Daily Driver 2009 Flex Limited with factory tow package Project car 1986 Chrysler LeBaron convertible 2.2L Turbo II, modified A413

Gary Lewis

Re: 12v Electric Choke Wire Help

Administrator

In German, jein. The schematic from the EVTM is busy, with all the other stuff that's on the page and with the reference back to Page 17 - as shown below. Plus, there's no 30 and 87, etc.

So, while I fully buy into what you are saying, it is like one EE talking to another EE, and not what is needed in this case. Given that, I'm working on a diagram that uses standard Bosch relay numbering but cuts out all the ancillary stuff.

Once done that and your oil pressure switch trick need to be on tabs in the Choke section of the 3G page as suggested ways of dealing with a 12v choke.

Gary, AKA "Gary fellow": Profile

Gary Lewis

Re: 12v Electric Choke Wire Help

Administrator

Here's my first pass - just before I pass to bed. Looks like it needs a bit of clean up, but the idea is there. And, we'll need to give a # for the relay, a place to buy it, or some such. Plus a fuse holder suggestion. But that's gotta wait for morn.

Gary, AKA "Gary fellow": Profile

Gary Lewis

Re: 12v Electric Choke Wire Help

Administrator

Let's see if this looks better. What do y'all think? Is it good enough? Are we ready to move on to spec'ing the relay, the relay holder/socket, fuse holder, etc?

Gary, AKA "Gary fellow": Profile

1986F150Six

Re: 12v Electric Choke Wire Help

Administrator

Looks good... I just cleaned my glasses!

kramttocs

Re: 12v Electric Choke Wire Help

Administrator

In reply to this post by Gary Lewis

Looks good. FWIW Holley recommends a 10 amp fuse in their instructions.

Not sure what other specs are needed though.
Before I switched to a relay box I was looking to go this route to clean up some wiring: https://amzn.to/2HkKF9l

Scott
'Camano' 1986 F250 Supercab XLT Lariat 460/C6
'Chanute' 1980 F350 C&C 400/NP 435 - Gin Pole

But there ain't nothin' wrong with the radio

Gary Lewis

Re: 12v Electric Choke Wire Help

Administrator

I guess I need to change that fuse then. Thanks!

As for the relays, that's a slick system. While I'm typing on the 3G page, do you know if they have a single or double-relay pack? I realize that $20 for 6 relays and fuses is cheap, but I'm exploring options for the page.

Gary, AKA "Gary fellow": Profile

Gary Lewis

Re: 12v Electric Choke Wire Help

Administrator

Ok, sports fans, let's see what you think of what we have on the Choke tab here: Documentation/Electrical/3G Conversions.

We can embellish it, improve it, etc but we have a start. Please tell me what to change, add, etc.

Gary, AKA "Gary fellow": Profile

kramttocs

Re: 12v Electric Choke Wire Help

Administrator

In reply to this post by Gary Lewis

Hmm, I found some singles on ebay but they are 10/per.

Scott
'Camano' 1986 F250 Supercab XLT Lariat 460/C6
'Chanute' 1980 F350 C&C 400/NP 435 - Gin Pole

But there ain't nothin' wrong with the radio

kramttocs

Re: 12v Electric Choke Wire Help

Administrator

In reply to this post by Gary Lewis

Looks great!
Since it's typically the first question I ask myself when adding a load to a factory circuit, what about a similar 'peace of mind' confirmation comment on the 460 option as you have on the relay option?
Something like:

Since the R/Y from the factory is only being used to pull in the fuel pump relay, adding the additional [at most] 10 amp load is well within the capabilities of the circuit.

Scott
'Camano' 1986 F250 Supercab XLT Lariat 460/C6
'Chanute' 1980 F350 C&C 400/NP 435 - Gin Pole

But there ain't nothin' wrong with the radio

Whisler

Re: 12v Electric Choke Wire Help

In reply to this post by Gary Lewis

Gary: what you have there is what I did for my 3G alternator/Edelbrock carb. combo, except I used a marine 4-fuse block (with cover) with a single power feed because I plan to add other relay-controlled accessories and didn't want to run multiply power feeds. I fabricated a panel to hold the fuse block and relays with a central ground screw. So far works well.

God Bless
Whisler

Frankenstein: 1989 F250 4X4, C-6, Hurst Pro-Matic 2 shifter, carbed '84 351W, Edelbrock manifold, Edlbrock AVS, DS2 ignition, 3G alternator, JBA shorty headers, no cats, dual exhaust with H pipe.

Gary Lewis

Re: 12v Electric Choke Wire Help

Administrator

Scott - I was afraid a single would cost almost as much as the 6-pack, so I think I'll point that out on that page and let the reader choose. But I also need to add that the relay should be kept close to the source of power, like the starter relay, as the fuse is at the relay and if there's a short in the wire running to the relay it'll melt down. Having said that, even the wire running to a fuse holder is unprotected, so as long as the wire is kept short it is fine.

And I think your upgrade on the 460 is a good one.

Whisler - Yes, individual power feeds is an issue with something like this. I think Jim ran into that with his power distribution box. So having something with a buss in it would be nice.

Gary, AKA "Gary fellow": Profile

old55pete

Re: 12v Electric Choke Wire Help

Gary, these relays can be bought at NAPA with a 5 wire plug already attached. I buy them by the hand full for about $14.00 apiece and use them when I do custom truck bed builds.

Steve
86 Bronco, XLT, 5.0 EFI, EEC IV, AOD, IFS, limited slip front and rear, 3.08 gears, Tilt steering, factory AC

Gary Lewis

Re: 12v Electric Choke Wire Help

Administrator

Steve - Thanks. Do they have the built-in fuse? That is what makes the ones Scott found so appealing, with fuse, relay, and socket as one.

Gary, AKA "Gary fellow": Profile

kramttocs

Re: 12v Electric Choke Wire Help

Administrator

I had actually bought a set of these before I switched to the Bussman fuse/relay block so opened them up to take a look this morning. Quality is surprisingly solid. The way the sockets snap together is really nice also.
Red: 14awg
White: 16awg
Black: 16awg
Blue: 14awg

To avoid joins I would probably remove their wires and make my own but they do give plenty to hook onto.

Scott
'Camano' 1986 F250 Supercab XLT Lariat 460/C6
'Chanute' 1980 F350 C&C 400/NP 435 - Gin Pole

But there ain't nothin' wrong with the radio

Gary Lewis

Re: 12v Electric Choke Wire Help

Administrator

Scott - They come with a 30a fuse, right? Other than that they are just right for the choke relay or for headlight relays. Buy a set of 6 and use 1 or 2 and have spares.

The only thing I wish is that the fuse holder was part of the socket and not part of the relay. That way you could use other relays and still be protected.

Gary, AKA "Gary fellow": Profile

kramttocs

Re: 12v Electric Choke Wire Help

Administrator

Yeah -30

I agree, that would be nice to have the fuse there instead.

Scott
'Camano' 1986 F250 Supercab XLT Lariat 460/C6
'Chanute' 1980 F350 C&C 400/NP 435 - Gin Pole

But there ain't nothin' wrong with the radio

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