2.8i runs for 5 minutes only

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dunmorsl
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Car(s): ac cobra with 2.8i xr4 based ,

2.8i runs for 5 minutes only

Postby dunmorsl » Sun Nov 11, 2018 12:23 pm

Hi I have a 2.8i I have just fitted a second hand engine wil all the original parts from original faulty engine that seized up ,it has good compression starts on the button from cold but only runs for 5 minutes and cuts out , will not start again until the engine is cold. I have checked the basics does anyone have any ideas to a solution to this frustrating problem.

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Andrew 2.8i
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Re: 2.8i runs for 5 minutes only

Postby Andrew 2.8i » Sun Nov 11, 2018 1:11 pm

Hi,
Welcome to the forum. :welcome:
Sorry to hear you're having trouble with your Capri.
Try working your way through the troubleshooting checklist for "Engine fails to start or is difficult to start when warm" at the bottom of the page:
http://www.zeepoort.nl/jetronic/K-Jetro ... oting.html

:goodluck:

Andrew.
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Peter-S
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Re: 2.8i runs for 5 minutes only

Postby Peter-S » Sun Nov 11, 2018 2:43 pm

Check the gauze filter on the inlet to the warm up regulator. When the engine is cold more fuel is allowed to flow through the regulator but it closes off as the engine warms. Could be other things too but I'd start there.
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T.M.
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Car(s): Capri 2.8 Injection (1984)

Re: 2.8i runs for 5 minutes only

Postby T.M. » Wed Nov 14, 2018 6:04 pm

Just stupid question. Isn't idle set screw fully tighten?
If engine is cold, air goes through auxiliary air device. Then when device is warm, it's closed and air can't go through.
Only an idea.

Tom