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PV, 120 (Amazon), 1800 General Forum for the Volvo PV, 120 and 1800 cars |
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Fuel InjectionViews : 627 Replies : 4Users Viewing This Thread : |
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Nov 27th, 2018, 12:11 | #1 |
Simon
Last Online: Dec 17th, 2018 11:08
Join Date: Nov 2018
Location: Bracknell
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Fuel Injection
Morning All
I am new to P1800E ownership having just bought a fuel injected 1971 beauty. All sorted save for one small issue. It starts well but will not hold idle until warm - then all is fine. Just looking for a point me in the right direction … is there a warm up regulator or easy adjustment? |
Nov 27th, 2018, 12:41 | #2 |
Member since 1988
Last Online: Mar 22nd, 2024 16:13
Join Date: Dec 2003
Location: Middlewich
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Hi, welcome to 1800 ownership.
The most likely cause of your problem is a seized auxiliary air valve on the side of the head adjacent to the thermostat housing, it has two hoses going to the inlet manifold. It's basically an automatic choke mechanism which closes as the water temperature rises but in the open position allows more air through the induction system. In a seized position it will adversely affect your tickover, either too high or not enough depending which position it seized in! Do a search for 'auxiliary air valve' or 'AAV' or 'auxiliary air slide' on this forum and you will find lots of discussions. I've developed a manual alternative for my 1800ES which works perfectly, a description and guide can be found at #24 in this thread: https://www.volvoforums.org.uk/showt...ntake+plumbing Paul. |
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Nov 27th, 2018, 13:26 | #3 |
Experienced Member
Last Online: Today 12:34
Join Date: Jun 2007
Location: L/H side
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Aux Air Valve
If you cannot find an original wax controlled Aux Air Valve You could use one from a volvo 240 with K-Jetronic ( GLT ) it would need to be fitted in the same place to soak up heat from the head and would need a 12 volt supply from the fuel pump feed wire for the internal heating element .
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My comments are only based on my opinions and vast experience . |
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Nov 27th, 2018, 15:33 | #4 |
Simon
Last Online: Dec 17th, 2018 11:08
Join Date: Nov 2018
Location: Bracknell
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P1800
Many thanks Guys - I have been pointed in the right direction and I get it - much appreciated!
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Nov 27th, 2018, 22:43 | #5 |
Premier Member
Last Online: Today 13:58
Join Date: Jul 2007
Location: Connecticut, USA
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Simon;
Welcome to this forum! Link to good reference/troubleshooting info for Bosch D-Jet: http://volvo1800pictures.com/documen...lt_tracing.pdf Cheers from Connecticut! |
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