924Board.org

ted von Kampen · Posted: Wed Dec 21, 2016 9:06 am Post subject: What is the difference

I tried posting a cross reference before but the cross did not work out. Does anyone know the difference between Bosch cold start valve 0280170414 and part number 0280170402 or 0280170406 or 0280170416? They look the same. Thanks, ted

Rasta Monsta · Joined: 12 Jul 2006 Posts: 11733 Location: PacNW

Is the one you're trying to replace not serviceable? I only ask because most of them should be able to be made good as new by an FI specialist.
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Toofah King Bad

WeiBe (1987 924S 2.5t) - 931 S3

ted von Kampen · Posted: Wed Dec 21, 2016 1:54 pm Post subject: cold start injector

The one I have seems to be plugged. This car sat for 15 yrs and was heavily varnished. I cleaned the actual injectors successfully, however I have tried soaking this one with no success. When the coil is energized I can hear it click but it will not spray fuel under pressure, nor will compressed air pass when it is energized. Since this is the first Porsche I have tackled any help is appreciated. Has anyone tried applying a little heat to the injector and then energize with lacquer thinner in the inlet side?

Eliza · Posted: Wed Dec 21, 2016 3:25 pm Post subject:

Hi Ted,

I do have a list of CSVs Bosch made with specs and the cars that came equipped with them. It's in German though

- if you think it'll help you let me know, I'll forward it to you.

I replaced mine also as it seemed to flood my engine. Having them serviced seems not worth the money, they're still relatively easily available used where I am. Just an indication - I paid 15 EUR for my replacement ( that made all the difference to a faultless cold start, btw. ).

HTH,

Eliza
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1985 924 NA RoW
1981 931 S2 RoW

Rasta Monsta · Joined: 12 Jul 2006 Posts: 11733 Location: PacNW

Lucky you. Mine comes back to a 930 part number...three hundred bucks (servicing is $25).

I'd love to see your cross reference chart.
_________________
Toofah King Bad

WeiBe (1987 924S 2.5t) - 931 S3

924RACR · Posted: Wed Dec 21, 2016 11:07 pm Post subject:

Apologies for the delay; I do have the Bosch catalog (hardcopy) for fuel injection products.

That catalog (1998 vintage) shows the same part # for all US 924, NA and Turbo: 0 280 170 401.

According to the catalog, that part# cross-references (again, this is all US market, sorry) to:

Audi:
81-83 4000
84 5000
'75-76 Fox

Ferrari:
80-85 308 GTBi
80-85 GTSi
86-89 328 GTB
86-89 GTS
81-89 Mondiale

Peugeot:
80-86 505i

Renault:
82-83 Fuego (piece of shite that it is)

SAAB:
79-80 900
76-80 99
75 99EMS

VW:
82-83 Quantum

The -402 part number hits a long list of VWs, the 75-77 911 and 78-79 928, and a few more Audis.

Similarly, the -416 part # covers a stack of Audis and VWs.

Sadly, I haven't figured out how to dig into our technical library enough to find out the tech spec differences (no doubt related to fuel delivery volume) on the different part #'s... nor have I found anyone in the gas engines groups who gives enough of a crap to look it up... most of my Powertrain contacts are in the Diesel group, and, well, you can imagine they're pretty busy these days...

_________________
Vaughan Scott
Webmeister
'79 924 #77 SCCA H Prod racecar
'82 931 Plat. Silver
#25 Hidari Firefly P2 sports prototype

Eliza · Posted: Thu Dec 22, 2016 12:39 am Post subject:

I found a moment to look up the data Ted requested. So, here goes:

0280170402, for Porsche 2,7 l ( I presume that means 911 ), output 115ccm/min at 4,5 bar
0280170406, for Audi 100, output 135 ccm/min at 4,5 bar, 45 deg. spraying angle
0280170408, for VW Golf, Scirocco (Japan only ), output 115 ccm/min at 4,5 bar
0280170416, for 5cyl Audi, output 135 ccm/min at 4,5 bar.

HTH,

Eliza

and edit: 0280170401 shows for Saab, Audi 80 and 100, output at 85 ccm/min at 4,5 bar if a "0"printed on CSV body, otherwise output at 115 ccm/min.
_________________
1985 924 NA RoW
1981 931 S2 RoW

ted von Kampen · Posted: Thu Dec 22, 2016 6:40 am Post subject: CSV

Eliza.. Thanks for that valuable data. Do you have any info on the part I now have 0280170414?

ted von Kampen · Posted: Thu Dec 22, 2016 7:51 am Post subject: Bosch cross chart

Eliza, Yes please forward that chart to me. I can send you a private email address if you need one. Thanks again
Ted

Eliza · Posted: Thu Dec 22, 2016 3:10 pm Post subject:

Hi Ted,

Oops, forgot to include that one.

0280170414, for Porsche 924 model year 81 (EU), 85 ccm/min at 4,5 bar.

Yep, PM me your email address and I'll forward the whole list.

However, I may be able to do one better for you

:

If you let me know which year and specs (BHP) your car is, I can find you a list of all Bosch K-Jet part no.s your car was originally equipped with. Should you not have the right CSV, you can then cross-ref the no. in the chart.

Cheers,

Eliza
_________________
1985 924 NA RoW
1981 931 S2 RoW

Eliza · Posted: Thu Dec 22, 2016 3:19 pm Post subject:

And for anyone else looking for the same info for their cars, check out this site:

http://www.bosch-classic.com/en/internet/bosch_classic/technisches_archiv/technisches_archiv_uebersicht.html

For all makes and models that were equipped with anything Bosch, alternators, coils, spark plugs, belts, lamps, the works. REALLY useful, that.
Registering enables you to download all sorts of goodies (no affiliations, btw ).

HTH,

Eliza
_________________
1985 924 NA RoW
1981 931 S2 RoW

924RACR · Posted: Thu Dec 22, 2016 10:35 pm Post subject:

Awesome, thanks for sharing, Eliza!!
_________________
Vaughan Scott
Webmeister
'79 924 #77 SCCA H Prod racecar
'82 931 Plat. Silver
#25 Hidari Firefly P2 sports prototype

Eliza · Posted: Fri Dec 23, 2016 12:20 am Post subject:

You're welcome

Good opportunity for me to give something back for all the invaluable info and insights I have been plucking off this great forum during the last few years -

now my car is running so sweetly I finally have time to solder LEDs into my backlit console switches to make them light up again with the dash lights , or replace the base of my rear defogger switch with a slightly cannibalized 2-way fog light switch base off a 944/I so I can switch the heated mirrors on separately.

I love projects that can be done in the warm kitchen instead of the garage at this time of year

Eliza
_________________
1985 924 NA RoW
1981 931 S2 RoW

Rasta Monsta · Joined: 12 Jul 2006 Posts: 11733 Location: PacNW

Eliza · Posted: Fri Dec 23, 2016 3:36 pm Post subject:

I see one on Ebay Germany for 47 EUR just now (which I wouldn't buy because I find it WAY overpriced ) - it is easier/cheaper of course to buy the higher-output ones here because no 85 HP engines were ever sold in Europe AFAIK.

I could keep an eye open for a good price, however, with shipping added this probably wouldn't make much sense...

On the Bosch site, you can run a product search for your CSV and find an application list. Trip to the Pull-A-Part?

Eliza
_________________
1985 924 NA RoW
1981 931 S2 RoW