57 Ninety Eight stalls in hot weather
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Joined: May 2010
Posts: 22
57 Ninety Eight stalls in hot weather
Just bought this car and seems to run fine exc. in hot weather when it seems the fuel pump shuts down? Or in any case the engine stalls and then you have to wait a LONG time before it will start right up again and run okay.
Heard this was a fuel pump/fuel line issue (leans against engine) but seems a bit of a mystery.
Anyone else encounter this?
Heard this was a fuel pump/fuel line issue (leans against engine) but seems a bit of a mystery.
Anyone else encounter this?
Registered User
Joined: Dec 2008
Posts: 1,179
From: West Palm Beach, FL
that is a whole different issue - relating to the valve seats
the hard start hot is very common, having to do with the "boiling away" of the fuel, and the addition of ethanol (we have it here in FL 10% can not avoid it) seems to amplify any fuel-related issues.
If the car starts and runs fine cold, and even hot, but hard to restart, you may consider adding an additional fuel pump back at the tank to keep pressure in the fuel line. I am not so sure that this will fix it though.
I just had this added to my 76 Custom Cruiser, and while it did remedy a cold start issue (started, idled high and stalled once every morning, restarted and ran great) it really did not help my hot start issue.
In my case, it starts hot, but needs a minute of idle + to be smooth and fine prior to driving off.
It may also be something as simple as crap in the fuel, but like I said, if it is ok cold, that would be effected as well.
the hard start hot is very common, having to do with the "boiling away" of the fuel, and the addition of ethanol (we have it here in FL 10% can not avoid it) seems to amplify any fuel-related issues.
If the car starts and runs fine cold, and even hot, but hard to restart, you may consider adding an additional fuel pump back at the tank to keep pressure in the fuel line. I am not so sure that this will fix it though.
I just had this added to my 76 Custom Cruiser, and while it did remedy a cold start issue (started, idled high and stalled once every morning, restarted and ran great) it really did not help my hot start issue.
In my case, it starts hot, but needs a minute of idle + to be smooth and fine prior to driving off.
It may also be something as simple as crap in the fuel, but like I said, if it is ok cold, that would be effected as well.
Registered User
Joined: Nov 2007
Posts: 9,127
From: Rathdrum, Idano
The 57 Olds does not have a fuel return line. Check the location of you fuel line to see if it was replaced and run to close to the exhaust manifold at some point. Also check to make sure you are getting enough pressure from your fuel pump. It could be weak and causing the problem.
The stock fuel line routing does not come close to the exhaust manifold or the exhaust pipe.
I have never had this problem with my 57 and we have ethanol in our gas
The stock fuel line routing does not come close to the exhaust manifold or the exhaust pipe.
I have never had this problem with my 57 and we have ethanol in our gas
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Wil Lopez
Ninety-Eight
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Aug 29, 2010 09:41 AM
