Engine Cuts Out, Only When Turning |
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Engine Cuts Out, Only When Turning |
dlee6204 |
Mar 5 2017, 04:29 PM
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#1
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Howdy Group: Members Posts: 2,162 Joined: 30-April 06 From: Burnsville, NC Member No.: 5,956 |
I finally got the the point when my project car is running well and I have one last issue I need to address. The engine cuts out / dies when going around a corner. This is with a full tank of gas. I can make a u-turn and it it will sputter and die 1-2 seconds and then roar back to life. I can also go around a corner at speed and the engine will sputter/ backfire out the exhaust for a brief second before running regularly again. It doesn't matter left or right turn. Anyone have any theories?
Stock '71 w/ Djet. This is on my build thread car so nearly everything has been gone through or replaced. New fuel system, clean tank etc. Thanks http://w.914world.com/bbs2/index.php?showtopic=248776 |
audio_file |
Mar 5 2017, 05:29 PM
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#2
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Member Group: Members Posts: 295 Joined: 6-August 11 From: Everett, Wa Member No.: 13,409 Region Association: Pacific Northwest |
Check to make sure the fuel tank isn't sitting on/pinching off any extra fuel line underneath it. If it doesn't seem to have a problem with less fuel, that would be my first guess- I've had that happen before (IMG:style_emoticons/default/idea.gif)
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injunmort |
Mar 5 2017, 05:42 PM
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#3
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Senior Member Group: Members Posts: 1,024 Joined: 12-April 10 From: sugarloaf ny Member No.: 11,604 Region Association: North East States |
make sure the battery is securely tight to the the tray. i had a bungee cord on mine years ago and when turning, the battery would slide into the side and ground itself.
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cwpeden |
Mar 5 2017, 07:17 PM
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#4
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Great White North, huh? Group: Members Posts: 916 Joined: 20-August 06 From: Victoria BC Member No.: 6,693 Region Association: Canada |
Both directions or just one?
My fuel pump wiring was broken and would shut off the pump only when autocrossing turning left. Actually found it by accident, now I can start wearing out my left rear tire. (IMG:style_emoticons/default/tongue.gif) |
Rand |
Mar 5 2017, 07:44 PM
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#5
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Cross Member Group: Members Posts: 7,409 Joined: 8-February 05 From: OR Member No.: 3,573 Region Association: None |
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cwpeden |
Mar 5 2017, 07:51 PM
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#6
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Great White North, huh? Group: Members Posts: 916 Joined: 20-August 06 From: Victoria BC Member No.: 6,693 Region Association: Canada |
Thx, misread it.
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SirAndy |
Mar 5 2017, 08:25 PM
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#7
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Resident German Group: Admin Posts: 41,688 Joined: 21-January 03 From: Oakland, Kalifornia Member No.: 179 Region Association: Northern California |
Do you have a Bosch blue coil?
(IMG:style_emoticons/default/idea.gif) |
stugray |
Mar 5 2017, 11:43 PM
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#8
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Advanced Member Group: Members Posts: 3,825 Joined: 17-September 09 From: Longmont, CO Member No.: 10,819 Region Association: None |
I once had the condenser (little silver can on the side of the dizzy) break off of its mount and fall on top of the engine, still connected to the wire.
It would run fine sitting or driving flat, but when I turned a corner it would roll around on the engine tins and the engine would cut out. |
dlee6204 |
Mar 6 2017, 04:56 AM
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#9
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Howdy Group: Members Posts: 2,162 Joined: 30-April 06 From: Burnsville, NC Member No.: 5,956 |
No. Just a regular cheap coil. |
SirAndy |
Mar 6 2017, 12:27 PM
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#10
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Resident German Group: Admin Posts: 41,688 Joined: 21-January 03 From: Oakland, Kalifornia Member No.: 179 Region Association: Northern California |
No. Just a regular cheap coil. I'm asking because the Bosch Blue coils are just a tad too small to fit tight inside the clamp on the fan shroud and will slide left/right when cornering hard. And when they slide, the coil + will arc to the clamp ground and the engine will cut out. Might want to check your coil and make sure it doesn't slide. Been there, done that ... (IMG:style_emoticons/default/dry.gif) |
IronHillRestorations |
Mar 6 2017, 01:46 PM
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#11
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I. I. R. C. Group: Members Posts: 6,732 Joined: 18-March 03 From: West TN Member No.: 439 Region Association: None |
I wonder if there's a foreign object in the distributor that's causing it to ground out.
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dlee6204 |
Mar 6 2017, 03:55 PM
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#12
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Howdy Group: Members Posts: 2,162 Joined: 30-April 06 From: Burnsville, NC Member No.: 5,956 |
I went out and checked everything suggested. Battery is secure. Nothing appeared obvious in the distributor. Coil is also tight and not hitting anything. I have not checked the lines under the tank yet.
I then wanted to try to isolate the issue so I used a long fuel hose and routed a fuel pressure gage to the cockpit and went for a drive. When doing U-turns I repeatably noticed a significant drop in fuel pressure. This tells me that it's either an obstruction in the fuel lines somewhere or that it's an electrical issue for the fuel pump. Next step will be to pull the belly pan to check for any pinched lines. |
dlee6204 |
Mar 12 2017, 11:12 AM
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#13
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Howdy Group: Members Posts: 2,162 Joined: 30-April 06 From: Burnsville, NC Member No.: 5,956 |
I got around to pulling the steering pan today. I found that my supply line was indeed pinched so I'm hoping that fixes things. I won't be able to test drive the car for several days because salt on the roads but I'll try to give an update once I do. Thanks everyone.
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