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Helpful ReplyHot!Bosch fuel pump

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vitesse
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vitesse PCGB Member
2019/09/10 20:40:50 (permalink)

Bosch fuel pump

Anybody got a decent un-rubber covered fuel pump they don't want & are prepared to sell at a sensible price ,please?

1986 924S Stone Grey.
1987 924S Guards Red
2004 BMW 530D SE Touring Chiaretto Red
1966 MGB GT B Racing Green.
AndrewCS
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Re: Bosch fuel pump 2019/09/11 00:41:10 (permalink) ☄ Helpfulby vitesse 2019/09/12 10:07:43
This the one ... https://www.boschautoparts.com/en/auto/fuel-pumps/fuel-pumps?partId=69458 ?
 
Also found on Saab and Volvo, less scene tax perhaps  
 
 

Andrew
981 Cayman S PDK
Aberdeenshire (R2)

Previously
Cayman R Manual


robwright
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Re: Bosch fuel pump 2019/09/11 20:52:20 (permalink) ☄ Helpfulby vitesse 2019/09/12 10:07:14
I still have the one removed from my turbo before the last mods. 

Rob Wright
Stamford
07703671745
1988 944 Turbo - Guards Red
Tial 38mm DPW, JMG chips, Siemens 55lb injectors, 9xx race fuel pump, 3 bar FPR, EBC and Bailey DV30 dump valve.
vitesse
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Re: Bosch fuel pump 2019/09/12 10:07:51 (permalink)
Have sent PM,Rob.

1986 924S Stone Grey.
1987 924S Guards Red
2004 BMW 530D SE Touring Chiaretto Red
1966 MGB GT B Racing Green.
vitesse
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vitesse PCGB Member
Re: Bosch fuel pump 2019/09/16 12:40:28 (permalink)
Have sent further PM,Rob.

1986 924S Stone Grey.
1987 924S Guards Red
2004 BMW 530D SE Touring Chiaretto Red
1966 MGB GT B Racing Green.
Waylander
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Re: Bosch fuel pump 2019/09/16 17:35:12 (permalink)

1992 Cobalt Blue 968 Coupe
robwright
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Re: Bosch fuel pump 2019/09/16 17:54:55 (permalink)
I did reply mate. Don’t know why you didn’t get it?  Message me on my number in the signature. 

Rob Wright
Stamford
07703671745
1988 944 Turbo - Guards Red
Tial 38mm DPW, JMG chips, Siemens 55lb injectors, 9xx race fuel pump, 3 bar FPR, EBC and Bailey DV30 dump valve.
vitesse
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Re: Bosch fuel pump 2019/09/22 15:26:15 (permalink)
Thanks for the reference,Waylander-since then I've spoken with John at Unit 11 Porsche who I know well & has done the awkward jobs for me on my wife's car(clutch,engine mounts) & told him the symptoms ,what I'd checked etc & he thought it must be an electrical fault & only a rolling road session would help to fully diagnose.
I sort of agree so have shelved the new pump for now-funnily on leaving the PCGB track day on Friday late pm,it went round the clock through the gears but then returned to the blessed 4500 rev limit once hot,so after consulting my Bosch Fuel injection manual,my conclusions initially are to check the coil(DME rev limit comes from its signal),coil wiring(possible break opens up when hot ) & DME connection(s) before swapping out the DME from my wife's car to see if there is any difference.
Rob-a bit more info for your sake too.

1986 924S Stone Grey.
1987 924S Guards Red
2004 BMW 530D SE Touring Chiaretto Red
1966 MGB GT B Racing Green.
944Turbo
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Re: Bosch fuel pump 2019/09/22 21:23:42 (permalink)
From memory, is 4500 the point at which the AFM is wide open and swaps to look up tables - If I am remembering correctly could it be related? maybe an AFM or throttle position sensor issue?
Tony 

944T Coupe - personalised ;) but needing work
944T Cab - Standard
blade7
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Re: Bosch fuel pump 2019/09/22 21:59:27 (permalink)
When I had an idle issue I disconnected the TPS and the issue went away, suggests the look up tables work from idle up.
vitesse
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Re: Bosch fuel pump 2019/09/22 22:24:53 (permalink)
Tony,Paul -thanks for suggestions of where to go-the car is the red 924S in my avator-so doesn't have a TPS as far as I am aware-I've had the Throttle switch off & reset it using a multimeter exactly as Clarkes garage which is far better than my Haynes 944 manual.
At present have discounted the AFM  because below 4500rpm,car goes very well with no problems  & settles back to even idle once at rest.
Have dug out a spare engine temperature sensor (Bosch plug type) & spare coil,plus made a note of all appropriate wire colours ready to check out the critical connections to the DME plug,prior to swapping components.Going a bit into uncharted territory for me going forward.
Plus point is that I can drive it at motorway speeds still as long as in 5th gear

1986 924S Stone Grey.
1987 924S Guards Red
2004 BMW 530D SE Touring Chiaretto Red
1966 MGB GT B Racing Green.
vitesse
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Re: Bosch fuel pump 2019/09/28 09:47:10 (permalink)
Have bought a new engine temperature sensor for 10.50 Free postage  & fitted it yesterday-its resistance values are exactly as spec so shall see if it solves the Rev limit problem this weekend-this weather doesn't allow much fiddling otherwise.

1986 924S Stone Grey.
1987 924S Guards Red
2004 BMW 530D SE Touring Chiaretto Red
1966 MGB GT B Racing Green.
blade7
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Re: Bosch fuel pump 2019/09/28 11:13:49 (permalink)
Good luck, I'll be quite surprised if it is the temp sensor though.
vitesse
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Re: Bosch fuel pump 2019/09/28 14:07:56 (permalink)
Paul,so will I but at £10.50 it is worth a punt.
Current thoughts are:-the problem appears totally temperature related so unless the AFM tracks get hot enough to give funny signals I am discounting it being faulty for the present but- I haven't checked it yet cold & hot for lack of time & the weather.
I still haven't checked the DME connector unnconnected for the same reasons & so far haven't found any info that pinpoints the problem,even my Bosch manual doesn't address this.Most technical help relates to cold start,idle issues or uneven running problems associated with injectors-help!

1986 924S Stone Grey.
1987 924S Guards Red
2004 BMW 530D SE Touring Chiaretto Red
1966 MGB GT B Racing Green.
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