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Registered
Join Date: May 2004
Location: Chattaroy/ Spokane WA.
Posts: 10
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however it could be a decel valve...
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Levi 74 1.8 FI 74 2.0 Carbs |
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06-06-2004, 08:53 PM
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Join Date: Jan 2001
Location: Southwest
Posts: 548
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UH UH...........it's not dead yet! lol
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75' 2.0 w Ljet "I like the way she doesn't move in the curve's... and then she let's go!" |
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06-07-2004, 06:34 AM
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Yep, it's a decel valve and nope it's not a fuel pressure regulator
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1974 914 2.0 D-Jet 2004 BMW R1150RT-P |
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06-07-2004, 09:01 AM
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OCD project capitan
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Next time i will refer to my shop manuals. Sorry for any wrong input, beer tends to help my confidence too much sometimes.
Cheers, Don. (Note: I was drinking while writing this too. Damnit! Its a vicious cycle.)
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Don Welch '73 914ish ->6ish GTish 2.8 twin plug mfi... happy camper. |
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06-07-2004, 10:19 AM
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Join Date: Dec 2003
Location: Lyons, CO
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Decel Valve
Not to beat a dead horse, but one more tidbit about teh decel valve....
Apart from the emissions benefits, it does have one very handy feature. It's nice to have if you have a lightened flywheel. If you lift off the gas completely from high revs, an engine with a very light flywheel will have a tendancy to drop revs too quickly and -possibly- stall. The devel valve bleeds air back into the intake and will slow the rate that the revs drop. A handy thing to have if you've got a very light flywheel... Just my $0.02... Josh2 |
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06-07-2004, 02:48 PM
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Join Date: Dec 1969
Posts: 25
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i think the smaller one in the upper pix is a '74 decel and the bigger one uninstalled is a '75.
I think you hit it right on the nose there. The top pic shows a decel valve that was common to 1.7 and 2.0 engines as well. Leave it unless it's faulty, or bypass it if you don't want it and don't need it for smog. If it were a fuel pressure regulator, two of those connections would be fuel lines, and it would be mounted on the engine sheet metal. ***further flogging a dead horse*** |
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06-07-2004, 08:03 PM
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1974 Porsche 914 2.0 D-Jet
10 yr toy
