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> Deceleration Valve
Ian Stott
post Dec 30 2019, 07:41 AM
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This is a very difficult to get item to get! Many have said soaking the existing one in kerosene for a few days will do the trick, have not done that yet as I am still trying to track down a new one. Wondering what the success rate has been with soaking it in kerosene, also wondering would WD 40 do the same thing. Would hate to ruin the one I have, which is original to the car!

Ian Stott
Moncton
Canada
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Rand
post Jan 2 2020, 01:42 PM
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I'm curios if you understand why you need it? Why do you think you do?
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Ian Stott
post Jan 3 2020, 06:05 AM
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QUOTE(Rand @ Jan 2 2020, 03:42 PM) *

I'm curios if you understand why you need it? Why do you think you do?


According to the mechanic working on my car it controls the vacuum, so when not working you can have backfiring on deceleration, which I have. Also it is not possible to set the idle correctly with it being plugged. I am sure more knowledgeable people can explain the need for it better than me! I am also pretty confident it is there for a reason or Porsche would have not put it in the car.
My mechanic is an ASE from Belgium, has worked on these cars before emigrating to Canada; until I found him I was on the verge of switching to aftermarket fuel injection.

Ian Stott
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Posts in this topic
Ian Stott   Deceleration Valve   Dec 30 2019, 07:41 AM
bdstone914   @Ian Stott For L jet or D jet ? Can you post t...   Dec 30 2019, 08:07 AM
Ian Stott   @Ian Stott For L jet or D jet ? Can you post ...   Dec 30 2019, 09:07 AM
Mark Henry   @Ian Stott For L jet or D jet ? Can you post ...   Jan 3 2020, 08:56 AM
Ian Stott   @Ian Stott For L jet or D jet ? Can you post...   Jan 3 2020, 11:28 AM
bdstone914   [quote name='Mark Henry' post='2774370' date='Jan...   Jan 3 2020, 11:37 AM
Ian Stott   [quote name='Mark Henry' post='2774370' date='Ja...   Jan 3 2020, 12:12 PM
Ian Stott   I thought I would bring this back to the top, as I...   Dec 31 2019, 11:19 AM
timothy_nd28   I was alittle confused reading what you were doing...   Dec 31 2019, 11:54 AM
Highland   Have you tried turning the adjustment screw to loo...   Dec 31 2019, 03:36 PM
dr914@autoatlanta.com   we try the wd40 first then buy a used one   Dec 31 2019, 04:24 PM
Ian Stott   we try the wd40 first then buy a used one Do you...   Jan 1 2020, 09:45 AM
914werke   RE: Deceleration Valve   Dec 31 2019, 05:29 PM
cary   I have 2 soaking in kerosene right now. I'll d...   Jan 1 2020, 11:04 AM
Ian Stott   I have 2 soaking in kerosene right now. I'll ...   Jan 2 2020, 12:12 PM
cary   I have 2 soaking in kerosene right now. I'll ...   Jan 3 2020, 02:03 PM
rjames   :popcorn: I’ll be interested in your results. I...   Jan 1 2020, 12:24 PM
Rand   I'm curios if you understand why you need it? ...   Jan 2 2020, 01:42 PM
Ian Stott   I'm curios if you understand why you need it?...   Jan 3 2020, 06:05 AM
GregAmy   It doesn't "control the vacuum" (if ...   Jan 3 2020, 07:10 AM
Ian Stott   It doesn't "control the vacuum" (if...   Jan 3 2020, 07:28 AM
GregAmy   OK, so if it's an L-Jet like Mark says, and th...   Jan 3 2020, 12:42 PM
porschetub   OK, so if it's an L-Jet like Mark says, and t...   Jan 3 2020, 03:01 PM
porschetub   OK, so if it's an L-Jet like Mark says, and t...   Jan 5 2020, 01:56 PM
Mark Henry   Ian has a '74 Ljet, complete system and dizzy ...   Jan 3 2020, 01:11 PM
Ian Stott   I appreciate all who chimed in, would like to know...   Jan 3 2020, 02:01 PM
Rand   It's like an appendix. You could just remove i...   Jan 3 2020, 02:08 PM
ClayPerrine   It's like an appendix. You could just remove ...   Jan 5 2020, 07:38 PM
porschetub   It's like an appendix. You could just remove...   Jan 6 2020, 02:04 PM
wonkipop   [quote name='ClayPerrine' post='2775014' date='Ja...   Mar 30 2022, 08:01 PM
GregAmy   I don't know the L-Jet system...but Bruce says...   Jan 3 2020, 02:09 PM
rjames   If the car is backfiring it’s not the decel valv...   Jan 3 2020, 04:27 PM
Bleyseng   My 77 Baywindow Westy has the Ljet with that Decel...   Jan 4 2020, 10:29 AM
JawjaPorsche   One for sale on eBay https://www.ebay.com/itm/Por...   Jan 5 2020, 05:06 PM
porschetub   Classic bad ebay listing ,not the unit we are talk...   Jan 5 2020, 06:31 PM
rjames   Reviving a bit of an old thread and maybe this is ...   Aug 21 2020, 12:40 PM
RandyE   This is a very difficult to get item to get! ...   Mar 5 2022, 09:18 PM
Van B   Randy, I posted about this in a different thread r...   Mar 6 2022, 05:28 PM
StarBear   @Van [b]@[url=http://www.914world.com/bbs2/inde...   Mar 30 2022, 01:01 PM
Van B   The parts manual can be a little weird on our cars...   Mar 30 2022, 02:56 PM
StarBear   Thanks, @Van B!   Mar 30 2022, 03:10 PM
wonkipop   @Van B the EGR on the 75 (calif) works off the v...   Mar 30 2022, 04:30 PM
Van B   [b]@[url=http://www.914world.com/bbs2/index.php?s...   Mar 30 2022, 05:18 PM
wonkipop   [b]@[url=http://www.914world.com/bbs2/index.php?...   Mar 30 2022, 07:09 PM
emerygt350   Egr is actually a really cool (literally) addition...   Mar 30 2022, 06:21 PM
wonkipop   Egr is actually a really cool (literally) additio...   Mar 30 2022, 07:14 PM


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