 L-Jet not idling when HOT, Doesn't like 32C / 90F outside temps |
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| nihil44 |
 Feb 15 2018, 01:17 AM
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#1
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Member  Group: Members Posts: 157 Joined: 28-January 12 From: Brisbane, Australia Member No.: 14,058 Region Association: None 
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My '74 1.8 normally runs beautifully but with our present 90 degree F ambient temps it runs hot and won't idle.
Temp gauge is just short of the red zone. (Next time I will get NHS to put numbers on the gauges.) Thermostat works - checked with hot air gun. Flaps are opening Warm air guides installed Tried enriching idle mixture by screwing in air bypass screw to max - no effect Would appreciate help from the brains trust Thanks David Brisbane, Australia |
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| Valy |
Feb 16 2018, 01:31 AM
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#2
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Senior Member Group: Members Posts: 1,677 Joined: 6-April 10 From: Sunnyvale, CA Member No.: 11,573 Region Association: Northern California |
Please check that the auxiliary air valve closes when the engine is hot. It's known to make trouble on Ljet. Try to plug the tubes that go to it after the engine wormed up to see if it's better.
And check for vacuum leaks again. |
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Posts in this topic
nihil44 L-Jet not idling when HOT Feb 15 2018, 01:17 AM
falcor75 Check that your fuel pressure still is ok, if the ... Feb 15 2018, 02:21 AM malcolm2 I assume you are talking about oil temp. I also a... Feb 15 2018, 07:51 AM nihil44 I haven't checked fuel pressure but I have rel... Feb 15 2018, 02:14 PM djway In the AFM box there is an air density/temp sensor... Feb 15 2018, 02:25 PM nihil44 Thanks djway,
That diagnosis fits the scenario be... Feb 15 2018, 03:50 PM nihil44 Got an old AFM and looked inside but couldn't ... Feb 15 2018, 06:33 PM
nihil44 Temp Gauge Feb 15 2018, 06:35 PM
djway
Got an old AFM and looked inside but couldn't... Feb 15 2018, 10:16 PM nihil44 Got it.
Thanks
Will check on the car.
I am a lit... Feb 16 2018, 12:27 AM djway
Got it.
Thanks
Will check on the car.
I am a li... Feb 16 2018, 01:27 AM nihil44 Looks like it's fixed
A very talented friend ... Feb 17 2018, 01:07 AM |
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