Another Carb question
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=33338
Printed Date: October-08-2024 at 12:46pm
Topic: Another Carb question
Posted By: racingnc
Subject: Another Carb question
Date Posted: April-14-2014 at 7:21pm
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I recently rebuilt my 4150 carb works great until I shut the boat off. I noticed fuel flowing out of one of the main jets. My question is what might be the culprit.
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Replies:
Posted By: SNobsessed
Date Posted: April-15-2014 at 12:05am
A stuck float would be my guess.
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“Beer is proof that God loves us and wants us to be happy.”
Ben Franklin
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Posted By: Waterdog
Date Posted: April-15-2014 at 9:32am
+1 stuck primary float (you mean one of the front "barrels" looking down at it ???)
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- waterdog -
http://www.correctcraftfan.com/diaries/details.asp?ID=3896&sort=&pagenum=2&yrstart=1978&yrend=1978" rel="nofollow - 78 Ski Tique
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Posted By: TRBenj
Date Posted: April-15-2014 at 10:03am
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Stuck float is possible but it's more likely to be a bad needle/seat following a carb rebuild. Pretty common in new Holleys these days (both new carbs and rebuild kits). Hope you kept the old one!
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Posted By: backfoot100
Date Posted: April-15-2014 at 10:36am
Don't rule out the float being set too high. That's happened more than once here after a rebuild. Especially if you have a 1:1 tranny and no angled carb adapter.
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When people run down to the lake to see what's making that noise, you've succeeded.
Eddie
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Posted By: Waterdog
Date Posted: April-15-2014 at 11:01am
Agree with everything. Check all WHEN you pull the bowl off.
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- waterdog -
http://www.correctcraftfan.com/diaries/details.asp?ID=3896&sort=&pagenum=2&yrstart=1978&yrend=1978" rel="nofollow - 78 Ski Tique
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Posted By: cadunkle
Date Posted: April-15-2014 at 6:35pm
Clean or replace needle and seat, reset float level... May just need to set a hair lower. Could also be heat soak, it will expand or boil the fuel and cause some dripping and ensuing flooded hard start condition. I used a thin (1/2" IIRC) phenolic spacer on mine to help isolate the carb from heat soak.
Also, extreme carb angle will cause flooding out the front bowls unless float level is set lower than normal. Angled spacer will help and many direct drives had these from the factory, sometimes discarded over the years.
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