Choke Not Closing Fully When Cold
Printed From: CorrectCraftFan.com
Category: Repairs and Maintenance
Forum Name: Engine Repair
Forum Discription: Engine problems and solutions
URL: http://www.CorrectCraftFan.com/forum/forum_posts.asp?TID=43097
Printed Date: April-28-2024 at 9:05am
Topic: Choke Not Closing Fully When Cold
Posted By: Otto Throttle
Subject: Choke Not Closing Fully When Cold
Date Posted: July-07-2018 at 6:01pm
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I found the reason my engine was hard to start cold. The Choke not closing fully...I pushed it shut and it fired right up cold with two pumps. What could be preventing it from closing fully when cold?? Is there a spring that needs to be replaced? I am not sure how it works! Once that is corrected she will purrrrrr! Thanks! ------------- Otto |
Replies:
Posted By: Gary S
Date Posted: July-07-2018 at 6:21pm
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google automatic holley choke adjustment ------------- http://www.correctcraftfan.com/diaries/details.asp?ID=1711&sort=&pagenum=1&yrstart=1966&yrend=1970" rel="nofollow - 69 Mustang HM SS 95 Nautique Super Sport |
Posted By: 8122pbrainard
Date Posted: July-07-2018 at 6:26pm
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Chris, From your other post:
------------- /diaries/details.asp?ID=1622" rel="nofollow - 54 Atom /diaries/details.asp?ID=2179" rel="nofollow - 77 Tique 64 X55 Dunphy Keep it original, Pete < |
8122pbrainard wrote:Posted By: Otto Throttle
Date Posted: July-07-2018 at 7:01pm
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Ok... how would I adjust it? I wish I had a manual. Can you please kibitz me on how to do this? Thank you!!!! ------------- Otto |
Posted By: 8122pbrainard
Date Posted: July-07-2018 at 7:29pm
https://www.bing.com/videos/search?q=holley+electric+choke+adjustment&qpvt=holley+electric+choke+adjustment&view=detail&mid=5BF76D2B9619C835FB3E5BF76D2B9619C835FB3E&&FORM=VRDGAR" rel="nofollow - Googled for you ------------- /diaries/details.asp?ID=1622" rel="nofollow - 54 Atom /diaries/details.asp?ID=2179" rel="nofollow - 77 Tique 64 X55 Dunphy Keep it original, Pete < |
Posted By: KENO
Date Posted: July-07-2018 at 10:07pm
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Otto Here are some pictures for you First one is the cover with the heating element inside The 3 screws holding it to the housing are already removed. Second one is the housing with the cover removed Third one is the inside of the cover with the bimetallic spring that heats up when voltage is applied . Have you tried to adjust the cover, this was mentioned in your earlier thread and again in this one. CCW will make the choke close more and take longer to open. That's what you want to do. It's kinda backward from what might seem logical. If that doesn't work take the cover off like in the pictures and you'll see how the loop in the end of the spring fits over the tang in the housing and you'll be able to inspect the spring. If you put 12 volts to the heating element connections, you can watch the spring heat up and "unwind". If that doesn't happen you have a bad heating element but since you say the boat runs great otherwise, you most likely just need to loosen the 3 screws and rotate your heating element CCW a little to close the choke some more. It's really not the science project that you're making this into    
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Posted By: Gary S
Date Posted: July-07-2018 at 10:34pm
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Hard to follow when you start more than one thread. Loosen the screws in the red circles,turn the choke element in the direction of the arrow until the choke butterfly is about 1/8" gap to it's fully closed.  ------------- http://www.correctcraftfan.com/diaries/details.asp?ID=1711&sort=&pagenum=1&yrstart=1966&yrend=1970" rel="nofollow - 69 Mustang HM SS 95 Nautique Super Sport |
Posted By: KENO
Date Posted: July-07-2018 at 10:50pm
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Posted By: Gary S
Date Posted: July-08-2018 at 12:33am
As with Mojo's ice pictures you of all people know I can't tell my right from my left   There I think I fixed it. I wonder if Jbear is offering any refresher courses ? ------------- http://www.correctcraftfan.com/diaries/details.asp?ID=1711&sort=&pagenum=1&yrstart=1966&yrend=1970" rel="nofollow - 69 Mustang HM SS 95 Nautique Super Sport |
Posted By: 8122pbrainard
Date Posted: July-08-2018 at 8:31am
Yes Chris, it has been hard with you starting two threads. ------------- /diaries/details.asp?ID=1622" rel="nofollow - 54 Atom /diaries/details.asp?ID=2179" rel="nofollow - 77 Tique 64 X55 Dunphy Keep it original, Pete < |
Posted By: Otto Throttle
Date Posted: July-08-2018 at 11:01pm
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Sorry guys! I tried to close the one since it went to the toilet paper conversation, and move on from that! I will try to adjust the choke on Tuesday which is my one day off! I am appreciative of the guidance! I just want everything to work as it did from the factory! This is the best forum I have ever been a part of! Thank you! ------------- Otto |
Posted By: Otto Throttle
Date Posted: July-08-2018 at 11:03pm
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Just to clarify..... turn to the right to close the choke when cold correct? ------------- Otto |
Posted By: KENO
Date Posted: July-08-2018 at 11:09pm
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NO That should help get the point across, Turn it LEFT, CCW to make it close more |
Posted By: KENO
Date Posted: July-08-2018 at 11:16pm
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Here in bold is what I wrote yesterday Have you tried to adjust the cover, this was mentioned in your earlier thread and again in this one. CCW will make the choke close more and take longer to open. That's what you want to do. It's kinda backward from what might seem logical. |
Posted By: Duane in Indy
Date Posted: July-08-2018 at 11:19pm
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Follow Kens instructions OR you could just loosen the screws and turn it one way, then the other way and watch what it does. You got a 50/50 chance of being right. Ken knows what he's talking about!!!!  ------------- Keep it as original as YOU want it 1978 Mustang (modified) |
Posted By: Otto Throttle
Date Posted: July-08-2018 at 11:30pm
Left it is!!!!  ------------- Otto |
Posted By: Duane in Indy
Date Posted: July-08-2018 at 11:37pm
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OK, now for the $64000 question (for the ones old enough to remember that show). Why did they (Holley) do away with the fast idle cam circuit on marine carbs? (Not that they ever had it) Thought they worked well. Rap it once when you were ready and go back to idle.  ------------- Keep it as original as YOU want it 1978 Mustang (modified) |
Posted By: gt40KS
Date Posted: July-09-2018 at 12:03am
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Hmmm.... I remember that with my old muscle cars. Did they do that with marine carbs as well? Don't know why they stopped tho - asside from a personal experience involving a super slick icy road and a large steel light pole. The one on my Mustang was particularly sticky when it was particularly cold .... ------------- JCCI 1995 Ski Nautique GT40 |
Posted By: KENO
Date Posted: July-09-2018 at 12:29am
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I figure (strictly a guess) that if you have a functional fast idle cam in your boat and it's idling at 1500-2000 rpm, you're a little impatient, in a hurry for whatever reason and you bang it into reverse, next thing you know reverse doesn't work because you snapped the clutch plate. Or if you bang it into forward at those same speeds that's not exactly good for the transmission either. With no fast idle cam, you have to lower the speed to go from neutral into either gear. Like I said, strictly a guess, I just came up with that off the top of my head, but I have to admit, it seems to makes sense
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Posted By: Duane in Indy
Date Posted: July-09-2018 at 12:32am
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Ken, your are $64,000 richer!!! Edit: Now you can buy 1/2 of a wake barge and pull Pete on a tube ------------- Keep it as original as YOU want it 1978 Mustang (modified) |
Posted By: KENO
Date Posted: July-09-2018 at 12:50am
Might be closer to 1/3 of a wake barge (and a couple spare shafts and props). I'll stop and pick you up on the way, we'll need an observer. Then we can stop and get Gary on the way through Illinois And Quinner And Hollywood I think 63 Skier would probably come along too since we're not too far from each other. Maybe TRB and Zach and Joe in NY And whoever else wanted to see this spectacle. |
Posted By: Jonny Quest
Date Posted: July-09-2018 at 4:07pm
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"Fast Idle Cam Circuit?" Well...you do have one. Kinda. Just pull the little disengage button and bump the throttle forward. It will stay in "hi idle" mode as long as you want. FWIW I believe KENO is correct. Don't want high idle when engaging the transmission. JQ ------------- Current 2003 Ski Nautique 206 Limited Previous 2001 Ski Nautique Open Bow 1994 Ski Nautique Open Bow Aqua skiing, ergo sum |
Posted By: 8122pbrainard
Date Posted: July-09-2018 at 5:02pm
Speaking of the high idle cam, Chris this is from your other duplicate post:
Is the carb marine? ------------- /diaries/details.asp?ID=1622" rel="nofollow - 54 Atom /diaries/details.asp?ID=2179" rel="nofollow - 77 Tique 64 X55 Dunphy Keep it original, Pete < |
Posted By: Otto Throttle
Date Posted: July-09-2018 at 6:03pm
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Yes all original Boat 500 hours! ------------- Otto |
Posted By: Otto Throttle
Date Posted: July-11-2018 at 6:10pm
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Made the choke adjustment per your guidelines! It was only 1 index mark CCW and it is closed! Thank you! I am mechanically inclined but just don’t have much experience! Saturday evening will be the test!!! Thanks everyone! I appreciate it! Otto ------------- Otto |
Posted By: KENO
Date Posted: July-11-2018 at 8:18pm
I checked with this guy and he says you'll be smiling on Saturday night
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Posted By: Otto Throttle
Date Posted: July-18-2018 at 8:55pm
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Oh Carnac you were so right! Fires right up, and at temperature choke is wide open! I think we may have gotten it! Thank you everyone!! ------------- Otto |