Help - Djet running way too rich |
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Help - Djet running way too rich |
Halfnelson |
Jul 23 2021, 06:51 AM
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#1
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Newbie Group: Members Posts: 46 Joined: 31-July 17 From: Cornwall Member No.: 21,303 Region Association: England |
Help - my new to me 1973 1.7 Djet came running really sweet, but almost immediately developed the 'hunting tick-over' of lean running / air leak. We replaced all the vacuum pipes, found one of the inlet gaskets had a very slight leak. Seems somewhere along the line things have been tweaked to compensate for the leaks so that now they're cured, the car is running super rich. Having had a L-jet for years the Djet is new to me so any advice on where to start first would be much appreciated. Thanks Chris
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Halfnelson |
Sep 6 2022, 10:10 AM
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#2
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Newbie Group: Members Posts: 46 Joined: 31-July 17 From: Cornwall Member No.: 21,303 Region Association: England |
I'm resurrecting this thread if that's ok so hopefully it'll add some context / back story.
The gist is my 73 1.7 on standard Djet would run ok for a short period of time - then flood. It was an intermittent problem that got so bad petrol is now actually spewing out of the exhaust. After discovering I had the wrong injectors fitted (way too much fuel being delivered) I had a set of new FJ114. I hoped this would crack it - but after starting and ticking over for a short while... it started to run rough, smoke cough and die. Turning the car over then results in petrol spewing out of the exhaust again. Short recap of work done includes: all new vacuum lines, CHT sensor replaced, MPS tested, fuel return tested, cold start injector disconnected and bypassed, new fuel pump fitted and fuel pressure tested, new coil fitted. The question is - a year down the line - what next? And what could be causing such a catastrophic over-fueling - it's not just running rich - there is fuel pissing out (IMG:style_emoticons/default/headbang.gif) |
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