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Author Topic: Engine cuts out when warm  (Read 9755 times)

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fryedaddy

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Re: Engine cuts out when warm
« Reply #60 on: August 31, 2020, 02:44:40 PM »
Quote from: fitter on August 31, 2020, 10:21:34 AM
Thx Ross. Im getting good a t swapping distributors. I will try pertronix again. What should i set timing at.  Stock cj  87 octane   Thx
im sorry but i would not run 87 in any fe no matter what i at least run 90-93.if your running 87 with 10% ethanol i would bet your vaporlocking and boiling the gas right out of your carb even while running it can boil.i watched mine boil through the glass sight windows with 93 + 10% ethanol.i know 87 will do it.
« Last Edit: September 01, 2020, 01:48:49 PM by fryedaddy »
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1966 comet caliente 428 4 speed owned since 1983                                                 1973 f250 ranger xlt 360 4 speed papaw bought new

fryedaddy

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Re: Engine cuts out when warm
« Reply #61 on: September 01, 2020, 01:53:55 PM »
i just filled up my 428 comet with 5 gallons of 110+10 gallons of 93 no ethanol.good street mix for performance.
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1966 comet caliente 428 4 speed owned since 1983                                                 1973 f250 ranger xlt 360 4 speed papaw bought new

fitter

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Re: Engine cuts out when warm
« Reply #62 on: September 01, 2020, 02:22:02 PM »
ok Thx  Will up the octane
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My427stang

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Re: Engine cuts out when warm
« Reply #63 on: September 01, 2020, 06:38:57 PM »
I think the stockers did fine on pump gas, but I would lean toward 91, 87 is pretty low. 
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Ross
Bullock's Power Service, LLC
- 70 Fastback Mustang, 489 cid FE, Victor, SEFI, Erson SFT cam, TKO-600 5 speed, 4.11 9 inch.
- 71 F100 shortbed 4x4, 461 cid FE, headers, Victor Pro-flo EFI, Comp Custom HFT cam, 3.50 9 inch

fitter

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Re: Engine cuts out when warm
« Reply #64 on: September 07, 2020, 09:27:48 AM »
Update..Looks like Jay and a couple others may have identified the problem..It appears the gas in bowls was overheating. I upped octane. Made a heat shield and installed under carb. Insulated fuel line. Reinstalled distributor with pertronix. Reinstalled factory 735 Holley. Set timing at 12 degree. Running fine now. Thx to all who offered advice.
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BIGBLOCKHEAD

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Re: Engine cuts out when warm
« Reply #65 on: March 25, 2021, 05:10:20 PM »
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machoneman

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Re: Engine cuts out when warm
« Reply #66 on: March 26, 2021, 01:20:38 PM »
Quote from: fitter on September 07, 2020, 09:27:48 AM
Update..Looks like Jay and a couple others may have identified the problem..It appears the gas in bowls was overheating. I upped octane. Made a heat shield and installed under carb. Insulated fuel line. Reinstalled distributor with pertronix. Reinstalled factory 735 Holley. Set timing at 12 degree. Running fine now. Thx to all who offered advice.

Great! Kudos to you for the follow-up message as some don't fill us in after the fact.
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Bob Maag

wayne

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Re: Engine cuts out when warm
« Reply #67 on: March 26, 2021, 02:01:25 PM »
I had a 67 fairlane that had a red shop rag in the fuel tank it would idle forever but when you drove it the rag got sucked up and it would quit.Second time i took the tank out i found it
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