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Search: Posts Made By: Rich9928p
Showing results 1 to 25 of 464
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Forum: 928 Forum
04-07-2024, 12:34 PM
Replies: 7
Views: 254
Posted By Rich9928p

The 1978 - 1984 US (not 1984 Euro) have an old...

The 1978 - 1984 US (not 1984 Euro) have an old style "transistorized" spark system. There is a Hall effect sensor on the distributor shaft and a shielded cable (aka "green wire") that sends the...
Forum: 928 Forum
04-06-2024, 10:35 PM
Replies: 7
Views: 254
Posted By Rich9928p

The fuel pump will not run when the engine isn't...

The fuel pump will not run when the engine isn't turning. For your 1982 model L-Jetronic 928 the RPM signal from the spark box connects directly to the fuel pump relay and only turns on with RPM >...
Forum: 928 Forum
12-26-2023, 10:35 PM
Replies: 38
Views: 10,230
Posted By Rich9928p

Two of my 928s have CSF radiators installed that...

Two of my 928s have CSF radiators installed that are commonly sold for the 928s. They fit well and work fine.

My US Spec 1979 doesn't have oil cooler lines, my Euro 1979 has the oil cooler...
Forum: 928 Forum
06-08-2023, 07:00 PM
Replies: 12
Views: 918
Posted By Rich9928p

Eary 1979 928

My 1979 928 is a US model and has an assembly date of 9/78 and is production number 315. So they started the Porsche 928 1979 model year likely just after the 1978 German summer holidays. It is a...
Forum: 928 Forum
03-08-2022, 10:56 AM
Replies: 495
Views: 40,930
Posted By Rich9928p

PVGP 2022

I'm in! Reservations made. Looking forward to a great time.

Rich
928 Owners Club Membership Chairman
1993 928 GTS cover girl
1987 928 S4
1979 928 5-speed rescue cover girl
1979 928 Euro...
Forum: 928 Forum
02-02-2022, 02:17 AM
Replies: 2
Views: 573
Posted By Rich9928p

RPM signal for 1984 Porsche

I assume you're referencing the US 1984 928 L-Jetronic fuel injection system.

The transistor ignition control unit output pin 16 (green) connects to central electric O7. It connects to Fuel Pump...
Forum: 928 Forum
12-28-2021, 01:30 AM
Replies: 7
Views: 950
Posted By Rich9928p

Both the 1985 – 1986 and 1987 and newer idle...

Both the 1985 – 1986 and 1987 and newer idle speed valves are controlled by a pulse width modulation (transistor) switch to ground. The positive voltage is a constant 12V.
Forum: 928 Forum
10-26-2021, 04:32 AM
Replies: 12
Views: 1,031
Posted By Rich9928p

The 1985 - 1986 928 Idle Speed regulator Valve ...

The 1985 - 1986 928 Idle Speed regulator Valve (ISV) has three wires connected to it, the center is +12V and the two others connect to LH fuel injection module connector pins 10 and 23 to open and...
Forum: 928 Forum
10-20-2021, 03:10 AM
Replies: 17
Views: 1,061
Posted By Rich9928p

For this model there are three relays that are...

For this model there are three relays that are required for the engine to run, the fuel pump, LH and EZF relays. If any of these fail the engine will stop running. It is a good idea to replace these...
Forum: 928 Forum
10-20-2021, 03:04 AM
Replies: 4
Views: 638
Posted By Rich9928p

You didn't mention if there is spark. With no...

You didn't mention if there is spark. With no spark there is no RPM signal to the L-Jetronic fuel injection box and there is no fuel injection. Check for spark and repair if needed.

The fuel...
Forum: 928 Forum
12-10-2020, 11:34 AM
Replies: 16
Views: 2,536
Posted By Rich9928p

What is 928 Wheel Offset

Wheels from other Porsche models don't fit the front of 928's. The standard Porsche 928 factory offset was 65 mm (front) through the entire 17+ year production run. It has a more advanced a-arm...
Forum: 928 Forum
10-16-2020, 09:33 PM
Replies: 10
Views: 682
Posted By Rich9928p

928 S-3 Diagnosis

I recommend Exotic Motorwerks in Scottsdale for 928 Porsche service. Owner Dan is an expert, he keeps my four 928s running well.

I also can assist you, drop a PM with your contact information.
...
Forum: 928 Forum
08-27-2020, 05:21 AM
Replies: 27
Views: 1,963
Posted By Rich9928p

My condolences, sad to hear. I met Bruce at the...

My condolences, sad to hear. I met Bruce at the 2011 Rennsport Reunion in California, a long drive for him. We had a nice conversation and communicated occasionally after that. He had invited me...
Forum: 928 Forum
07-24-2020, 06:58 PM
Replies: 606
Views: 44,751
Posted By Rich9928p

On the way home

We had a great time ... Monument Valley is quite a sight.
https://cimg2.ibsrv.net/gimg/rennlist.com-vbulletin/1200x635/dsc06874l_928_at_monument_valley_967574ab0acfddff7132c7c6e957c750de3a1d93.jpg...
Forum: 928 Forum
07-19-2020, 11:20 PM
Replies: 606
Views: 44,751
Posted By Rich9928p

Thanks to Harvey for hosting such a great event! ...

Thanks to Harvey for hosting such a great event! :cheers:

A great time was had by all.

Rich
928 OC Membership Chairman
1993 928 GTS Cover Girl
1987 928 S4 South Dakota Cruiser
1979 rescue...
Forum: 928 Forum
06-21-2020, 12:36 PM
Replies: 3
Views: 815
Posted By Rich9928p

Hello Ad0911. You will need the entire mounting...

Hello Ad0911. You will need the entire mounting A/C compressor system from the 1980 and newer Porsche 928, the existing mounting hardware will not work. My write-up contains the complete parts list...
Forum: 928 Forum
06-20-2020, 12:50 PM
Replies: 3
Views: 815
Posted By Rich9928p

Upgrade 1979 928 A/C Compressor to 2nd Gen 1980 and newer

I recently completed the upgrade of the A/C compressor on my 1979 928 to use the 2nd generation Nippon Denso compressor used in the 1980 and newer 928s. I needed new hoses and the original compressor...
Forum: 928 Forum
06-11-2020, 10:31 AM
Replies: 606
Views: 44,751
Posted By Rich9928p

We're registered, look forward to seeing everyone...

We're registered, look forward to seeing everyone and a great event.

Rich
928 OC Membership Chairman
1993 928 GTS Cover Girl
1987 928 S4
1979 5-speed Cover Girl
1979 Euro Track Beast
Forum: 928 Forum
04-05-2020, 06:31 PM
Replies: 39
Views: 18,624
Posted By Rich9928p

Yes, send me a email to info@electronikrepair.com...

Yes, send me a email to info@electronikrepair.com and I'll email the PDF to you.

Rich
928 OC Membership Chairman
1993 928 GTS Covergirl
1987 928 S4 road machine
1979 928 5-speed Covergirl...
Forum: 928 Forum
02-29-2020, 10:05 PM
Replies: 76
Views: 4,659
Posted By Rich9928p

The factory workshop manuals have an excellent...

The factory workshop manuals have an excellent diagnostic test flow for no spark in Volume 1A beginning at page 28-11. The manual can be downloaded at http://www.ligeti.com/928/
Forum: 928 Forum
07-18-2019, 07:24 PM
Replies: 16
Views: 1,495
Posted By Rich9928p

On the subject of heater valve, when replacing...

On the subject of heater valve, when replacing the heater valve it is always a good idea to replace the little bit of hose between the engine side water pipe and the heater valve. For the 1985 to...
Forum: 928 Forum
07-18-2019, 06:57 PM
Replies: 93
Views: 6,332
Posted By Rich9928p

There are two more relays to replace; LH and EZF....

There are two more relays to replace; LH and EZF. It takes all three for the engine to run.

Rich
928 OC Membership Chairman
1993 928 GTS Cover Girl
1987 928 S4
1979 928 5-speed rescue cover...
Forum: 928 Forum
03-12-2019, 09:20 PM
Replies: 32
Views: 2,614
Posted By Rich9928p

Happy Birthday DR

:rockon: and many more !

Rich
928 OC Membership Chairman
1993 928 GTS Cover Girl
1987 928 S4
1979 928 5-speed rescue cover girl too
1979 928 Euro 5-liter track beast
Forum: 928 Forum
03-12-2019, 01:08 PM
Replies: 42
Views: 4,293
Posted By Rich9928p

Since there is interest in the 1985 - 1986...

Since there is interest in the 1985 - 1986 Porsche 928 Idle Speed Regulator and how the 25 pin Bosch LH fuel injection module controls it, I prepared a PDF document that provides details on the...
Forum: 928 Forum
03-08-2019, 11:27 AM
Replies: 42
Views: 4,293
Posted By Rich9928p

Hello all, I recently repaired a 25-pin...

Hello all,

I recently repaired a 25-pin Porsche 928 LH that had an ISV circuit failure for a customer on the east coast.

I will check out this 25-pin LH ISV circuit and advise what I find.
...
Showing results 1 to 25 of 464
 
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