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924 FAQ (Technical)| Search found 28 matches |
| Author | Message |
|---|---|
 Topic: Fuel leak from the gas tank area |
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| knobby Replies: 5 Views: 15115 |
 Forum: 931 Tech. Posted: Sat Dec 22, 2018 3:33 am Subject: Fuel leak from the gas tank area |
| That section of fuel hose is still available from Porsche and is reasonably priced.You shouldn't use a straight hose because it needs to be pre-formed in an S shape otherwise it will kink and impede f ... | |
| Topic: Turbo bypass valve |
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| knobby Replies: 3 Views: 14961 |
Forum: 931 Tech. Posted: Mon Oct 29, 2018 1:02 pm Subject: Turbo bypass valve |
| I eventually spoke to the tech at Majestic who confirmed that the rotational orientation of the piston slots was vertical when he disassembled the turbo but John stated that it did not matter.
Any wa ... |
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| Topic: Turbo bypass valve |
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| knobby Replies: 3 Views: 14961 |
Forum: 931 Tech. Posted: Fri Oct 26, 2018 8:34 am Subject: Turbo bypass valve |
| I just got my turbo back from Majestic and have to replace the bypass valve gaskets myself because they thought that they were NLA!
Anyway I need help with the piston orientation. I think the piston ... |
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| Topic: How do you seal the injector holders in a 931? |
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| knobby Replies: 7 Views: 19602 |
Forum: 931 Tech. Posted: Sat Jul 07, 2018 12:42 am Subject: Injector socket/holder seal |
| I have a loose one.The holder(socket) seems loose on mine.
I just bought a set of new injectors and am getting ready to install them and rectify the loose thread.I don’t know yet if the looseness is ... |
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| Topic: '83 931 idles like a dog when cold - It's fixed! |
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| knobby Replies: 34 Views: 60815 |
Forum: 931 Tech. Posted: Fri Aug 11, 2017 2:17 am Subject: '83 931 idles like a dog when cold - It's fixed! |
| I noticed that the vacuum diagrams you posted all include the frequency valve .If only USA spec has frequency/LAMBDA then it would seem that more than likely there are also differences with the vacuum ... | |
| Topic: '83 931 idles like a dog when cold - It's fixed! |
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| knobby Replies: 34 Views: 60815 |
Forum: 931 Tech. Posted: Thu Aug 10, 2017 12:52 pm Subject: '83 931 idles like a dog when cold - It's fixed! |
| I have an '81 S2 with DITC and have experienced rough/low idle and it seems to be when the Frequency valve is either not operating at all or possibly just not operating correctly.At one point I realis ... | |
| Topic: Johann's 931 - Bringing her back from a looooong sleep |
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| knobby Replies: 25 Views: 32055 |
Forum: 931 Discussion Posted: Mon Jan 30, 2017 6:12 am Subject: Johann's 931 - Bringing her back from a looooong sleep |
| I know what you mean with that right engine mount as I replaced mine with a NOS original mount a couple of years ago.I had to do it without removing the engine bracket as I simply couldn't get that on ... | |
| Topic: Johann's 931 - Bringing her back from a looooong sleep |
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| knobby Replies: 25 Views: 32055 |
Forum: 931 Discussion Posted: Fri Jan 27, 2017 4:09 am Subject: Johann's 931 - Bringing her back from a looooong sleep |
| Amazing job Johann,well done!!!
Did you decide to leave the inner tie rods? If they are the originals what I have found is the nylon lining of the inner socket disintegrates from age and turns to mu ... |
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| Topic: Rev limiter |
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| knobby Replies: 10 Views: 13113 |
Forum: 931 Discussion Posted: Sun Jan 22, 2017 4:51 am Subject: Rev limiter |
| Yes that is quite easy to find for around $20.00 however my experience with them is they are unreliable and burn out after a 1-2 years where as the 931 FPR seems to be much more durable (30 years!).
... |
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| Topic: Rev limiter |
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| knobby Replies: 10 Views: 13113 |
Forum: 931 Discussion Posted: Thu Dec 15, 2016 11:56 am Subject: Rev limiter |
| My 6k cutout is definitely the 931 FPR I've swapped it out with the 924 FPR and no cutout.My car is ready to shift up by 5500 rpm as it feels like the power is trailing off from there and no point rev ... | |
| Topic: Rev limiter |
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| knobby Replies: 10 Views: 13113 |
Forum: 931 Discussion Posted: Wed Dec 14, 2016 9:48 pm Subject: Rev limiter |
| Yes mine cuts in very abruptly at 6000 rpm with the original 931 fuel pump. | |
| Topic: Johann's 931 - Bringing her back from a looooong sleep |
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| knobby Replies: 25 Views: 32055 |
Forum: 931 Discussion Posted: Sat Nov 19, 2016 4:26 am Subject: Johann's 931 - Bringing her back from a looooong sleep |
| Hi and welcome to the forum.Your car looks very nice.Thanks for posting great pics!
What is the year of manufacture?I was trying to determine if she's an S1 or S2.I did notice the dogleg shift patter ... |
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| Topic: Intake o-ring |
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| knobby Replies: 2 Views: 6066 |
Forum: 931 Discussion Posted: Mon May 30, 2016 10:00 pm Subject: Intake o-ring |
| I recently checked with my local Porsche dealer and that gasket which goes between the lower and upper charge tube is actually still available out of Germany. | |
| Topic: LED headlight upgrade |
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| knobby Replies: 12 Views: 11743 |
Forum: 931 Tech. Posted: Sun Oct 11, 2015 3:29 am Subject: LED headlight upgrade |
| I totally agree that it is wise to upgrade headlight circuits with relays/heavier gauge wiring/ceramic bulb connectors etc especially when using the higher wattage 90/100 even 130/90 H4 bulbs. | |
| Topic: LED headlight upgrade |
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| knobby Replies: 12 Views: 11743 |
Forum: 931 Tech. Posted: Thu Oct 08, 2015 9:26 pm Subject: LED headlight upgrade |
| So was the original factory wiring loom spec'd differently for USA vs ROW?
I find it hard to believe that Porsche would deliberately install an inferior spec wiring loom in USA cars to only be suffic ... |
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