 Car dies after hard stop |
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| michael7810 |
 Jun 14 2012, 08:06 PM
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#1
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Senior Member  Group: Members Posts: 1,081 Joined: 6-June 11 From: Scottsdale, AZ Member No.: 13,164 Region Association: Southwest Region 
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I have Weber IDF40s and the engine dies after a very hard, just short of locking up the wheels, stop. It runs good and doesn't quit any other times. Anyone else have this problem? Could it be the float levels?
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Replies(1 - 9)
| ThePaintedMan |
Jun 14 2012, 09:09 PM
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#2
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Advanced Member Group: Members Posts: 3,886 Joined: 6-September 11 From: St. Petersburg, FL Member No.: 13,527 Region Association: South East States
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Positive someone else's opinion is better than mine on this one, being a newbie to carbs, but thats exactly what it sounds like to me. I had an Holley with a misadjusted float on my old T-Bird and it did the same thing. Might try taking them apart and re-setting it to specs/checking float level.
-George |
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| IanJ |
Jun 15 2012, 02:38 AM
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#3
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Member Group: Members Posts: 90 Joined: 28-December 05 From: Perth, Western Australia Member No.: 5,327 Region Association: Australia and New Zealand |
Have you checked the clutch adjustment (or even make sure the mat isn't stopping the pedal from going right down)
I had this problem recently...so you never know! |
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| rhodyguy |
Jun 15 2012, 02:08 PM
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#4
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Chimp Sanctuary NW. Check it out. Group: Members Posts: 22,093 Joined: 2-March 03 From: Orion's Bell. The BELL! Member No.: 378 Region Association: Galt's Gulch |
don't tear your carbs apart. i think its something else. how long has this been happening? since you've owned the car? if you are rolling in neutral and hit the binders does the car still die?
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| yeahmag |
Jun 15 2012, 02:32 PM
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#5
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Advanced Member Group: Members Posts: 2,422 Joined: 18-April 05 From: Pasadena, CA Member No.: 3,946 Region Association: Southern California
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Yes it could. Or a "sinking" float. That is assuming the same thing happens if you pop it in neutral and do a hard stop.
QUOTE(michael7810 @ Jun 14 2012, 07:06 PM)  I have Weber IDF40s and the engine dies after a very hard, just short of locking up the wheels, stop. It runs good and doesn't quit any other times. Anyone else have this problem? Could it be the float levels? |
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| Dr Evil |
Jun 15 2012, 02:51 PM
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#6
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Send me your transmission! Group: Members Posts: 23,002 Joined: 21-November 03 From: Loveland, OH 45140 Member No.: 1,372 Region Association: MidAtlantic Region
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Does your electrical stay on? Similar issue happened to someone else and it was found that he/she had too much crap on the key ring and gravity would pull all that crap forward and turn the car off, then swing back and turn stuff on with a dead engine.
A bad start switch can do this without all the junk on the ring. It is an unlikely scenario, but I thought about it so posted it. |
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| ThePaintedMan |
Jun 15 2012, 05:58 PM
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#7
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Advanced Member Group: Members Posts: 3,886 Joined: 6-September 11 From: St. Petersburg, FL Member No.: 13,527 Region Association: South East States
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Wow, those are all really good points too! I think Kevin's question was really pertinent - did it just all of a sudden start doing this? It is doubtful a carb's float level would all of a sudden change, unless the float itself was leaking. Right?
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| michael7810 |
Jun 16 2012, 07:17 AM
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#8
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Senior Member Group: Members Posts: 1,081 Joined: 6-June 11 From: Scottsdale, AZ Member No.: 13,164 Region Association: Southwest Region
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I've only owned the car for a couple years and yes the problem has been occurring since day 1. What I first noticed was the oil pressure light would come on so I don't think the electrical is cutting off...I only use 1 key with no key ring when I drive it. Also if the power cycles the A/F gauge would go through it's startup process and that is not happening. I have not tried it in neutral but I know it does happen with the clutch in. I'll try it in neutral the next time I'm out. I'll see if the A/F goes way lean/rich during the hard stop and maybe I'll be able to tell if it's fuel related.
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| Kirmizi |
Jun 16 2012, 10:45 AM
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#9
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Senior Member Group: Members Posts: 836 Joined: 12-February 06 From: Wyoming, US Member No.: 5,568 Region Association: None |
How are the fuel lines below the tank? Any kinks or twists?
Mike |
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| michael7810 |
Jun 16 2012, 01:33 PM
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#10
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Senior Member Group: Members Posts: 1,081 Joined: 6-June 11 From: Scottsdale, AZ Member No.: 13,164 Region Association: Southwest Region
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I have replaced the tank fuel lines so I think they are OK. I don't think it would be fuel starvation if the float bowls were full to begin with. Hopefully the A/F meter will tell me if it's a fuel problem. I'll need a copilot to watch the meter while I slam on the binders.
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