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D2 - Engine Bay Everything under the bonnet

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  #1  
Old 22nd June 2015, 11:47 AM
roboblob roboblob is offline
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Default Revs Rising and Falling on Startup

May help someone.. you never know

Over the weekend I decided to tackle the vacuum hoses to try and stop the annoying revs issue on startup from cold.
So I replaced all of the braided hoses and other ones which were a bit too loose for my liking.
With anticipation I gave it a turn over..... Still the same

So to check for leaks I disconnected from the manifold and added a length of tubing and sucked and stuck my tongue on the end to block it.. the vacuum did not drop.

I then noticed the small black and white non return valve just after the manifold, so i took it off and guess what it allowed air to pass in both directions with no restriction at all..

One non return valve later my rev issue on startup has been cured.
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  #2  
Old 22nd June 2015, 12:00 PM
HPsauce HPsauce is offline
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Location: Chilterns, almost over HS2!
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Is that PF or FL? Could you post a photo to show where it is please?
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2003 D2 FL S8. Irish Green Pearl/Beige. Solar sunroof, auto-dim mirrors, electric rear seat functions, ski hatch retrofit; extended leather. Aftermarket DVB-T, reversing camera and full XCarlink (Bluetooth etc.).
2016 Volvo V40 T5 Cross Country (4WD) with ALL the toys including adaptive cruise etc. etc. Osmium Grey with Blonde/Charcoal leather interior. Polestar performance "optimisation". (A much rarer model than a D2 S8 by the way!) Oh, and a brand new engine at just under 30,000 miles on the factory one!
Finally: gone, but not forgotten.....
1998 D2 PF S8. AgateGrey/Platinum. Every option (I think) except electric rear seats, tiptronic steering wheel, ski hatch, towbar & dimming door mirrors.
e.g. Cruise control, NavPlus/TV, Bose, GSM, Xenons, Solar roof, Parking sensors, Alcantara/leather everywhere of course. (internal dimming mirror added later)
1998 (very early) Ford Focus 1.8 Zetec; ABS/TCS, Heated screen/mirrors, Aircon, Auto-dim mirror, Leather, Trip computer, Cruise control, OEM Ford SatNav with CD changer.
And before that a lot of Rover 800s, a few oddities, a lovely Triumph Dolomite 1850HL with Overdrive and way back in my schooldays an Austin Seven aka Mini 850!
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  #3  
Old 22nd June 2015, 12:16 PM
roboblob roboblob is offline
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Location: Glasgow
Posts: 208
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its a fl 3.7 , it sits just above the flap links , you will see a tube coming out of the manifold right in the middle. I will try and get you a piccy
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  #4  
Old 22nd June 2015, 12:41 PM
roboblob roboblob is offline
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  #5  
Old 22nd June 2015, 04:18 PM
HPsauce HPsauce is offline
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Location: Chilterns, almost over HS2!
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Found mine thanks, in that area. Tests fine I'm glad to say.
When I unplugged it there was a satisfying hiss, so no leaks in that system as the car had been parked for 8 hours beforehand since last being driven.
__________________
2003 D2 FL S8. Irish Green Pearl/Beige. Solar sunroof, auto-dim mirrors, electric rear seat functions, ski hatch retrofit; extended leather. Aftermarket DVB-T, reversing camera and full XCarlink (Bluetooth etc.).
2016 Volvo V40 T5 Cross Country (4WD) with ALL the toys including adaptive cruise etc. etc. Osmium Grey with Blonde/Charcoal leather interior. Polestar performance "optimisation". (A much rarer model than a D2 S8 by the way!) Oh, and a brand new engine at just under 30,000 miles on the factory one!
Finally: gone, but not forgotten.....
1998 D2 PF S8. AgateGrey/Platinum. Every option (I think) except electric rear seats, tiptronic steering wheel, ski hatch, towbar & dimming door mirrors.
e.g. Cruise control, NavPlus/TV, Bose, GSM, Xenons, Solar roof, Parking sensors, Alcantara/leather everywhere of course. (internal dimming mirror added later)
1998 (very early) Ford Focus 1.8 Zetec; ABS/TCS, Heated screen/mirrors, Aircon, Auto-dim mirror, Leather, Trip computer, Cruise control, OEM Ford SatNav with CD changer.
And before that a lot of Rover 800s, a few oddities, a lovely Triumph Dolomite 1850HL with Overdrive and way back in my schooldays an Austin Seven aka Mini 850!
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