Notices
928 Forum 1978-1995
Sponsored by:
Sponsored by: 928 Specialists

1987 928 S4 - Fuel Pump Question

Thread Tools
 
Search this Thread
 
Old 01-13-2014 | 10:22 PM
  #16  
928 at last's Avatar
928 at last
Rennlist Member
 
Joined: Jul 2008
Posts: 2,200
Likes: 2
From: Aurora, Ontario, Canada
Default Ok.....

Originally Posted by outbackgeorgia
USA 87 does NOT have an in tank pump. See post 6
I didn't realize that that was the particular year. For the OP's benefit, you could have also pointed out that the proper pump is very specific to that year as well, and has a separate part number
Can't find it right now, but Greg Brown knows the number, and I'm sure Roger too.
Old 01-13-2014 | 10:23 PM
  #17  
928 at last's Avatar
928 at last
Rennlist Member
 
Joined: Jul 2008
Posts: 2,200
Likes: 2
From: Aurora, Ontario, Canada
Default

I see Greg beat me to it...Never mind.
Old 01-13-2014 | 10:49 PM
  #18  
CDJQ's Avatar
CDJQ
Thread Starter
Track Day
 
Joined: Jul 2006
Posts: 22
Likes: 0
From: Merritt Island, Florida
Default

Hello again,
Well I have determined it is definately the pump that died. I called in for a new pump (which I think is specific for the 87 & 88 years) and a new filter while I was at it. Also I did look for the inline wires and there were none - so it's just the one external fuel pump. On the upside, by this happening it made me put the car up in the air and there are other things that need tending to. Time to change fluids but more importantly I noticed both of my exhaust hangers have broken plus the material that wraps the wires under the car has degraded so I can take care of that while I wait for the new pump.
Curious though..... has anyone had a fuel pump go intermitent or do they just outright die?

Thanks ,
Brett
Old 01-13-2014 | 11:28 PM
  #19  
jpitman2's Avatar
jpitman2
Rennlist Member
 
Joined: Dec 2002
Posts: 5,283
Likes: 49
From: Australia
Default

Pumps are like many things these days - lifetime warranty - warranted to work until they stop, then the lifetime is up. The can go loud when working hard, any sort of behaviour you can think of. If it pulls current but doesnt hum/whine, it sounds jammed on debris. Try reverse polarity briefly. Check the state of the in tank filter through the top access - remove round black cover on rear deck, remove gauge head fitting, and with low fuel you can see the filter with a TORCH. Mine was very very broken.
jp 83 Euro S AT 55k
Old 01-14-2014 | 12:58 AM
  #20  
17prospective buyer's Avatar
17prospective buyer
Three Wheelin'
 
Joined: Apr 2011
Posts: 1,778
Likes: 0
From: Singhampton, Ontario/London, Ontario
Default

A torch eh?
Old 01-14-2014 | 01:48 AM
  #21  
928Myles's Avatar
928Myles
Rennlist Member
 
Joined: Aug 2006
Posts: 938
Likes: 35
From: Cromwell, New Zealand
Default

When checking the fuel strainer just make sure that you use a English torch (flashlight) not an American one (burning stick).............(Ain't we got a wonderful lingo?)

Myles
Old 01-14-2014 | 02:21 AM
  #22  
Alan's Avatar
Alan
Electron Wrangler
Lifetime Rennlist
Member
 
Joined: Mar 2002
Posts: 13,435
Likes: 438
From: Phoenix AZ
Default

Yep in this context Torch = Flashlight (for those without recent "Queen's English" language ties).

An unfortunate lack of comprehension here could lead to a premature smouldering death...

Alan
Old 01-14-2014 | 03:26 AM
  #23  
snoz's Avatar
snoz
Addict extrordinare
Rennlist Member
 
Joined: Dec 2004
Posts: 686
Likes: 68
From: Kansas City, MO
Default

Originally Posted by 928Myles
When checking the fuel strainer just make sure that you use a English torch (flashlight) not an American one (burning stick).............(Ain't we got a wonderful lingo?)

Myles
Hey. Not all of us colonials would stoop to using a burning stick. Many of us have lighters.
Old 01-14-2014 | 12:48 PM
  #24  
CDJQ's Avatar
CDJQ
Thread Starter
Track Day
 
Joined: Jul 2006
Posts: 22
Likes: 0
From: Merritt Island, Florida
Default

Fortunately I was aware that a "torch" was a flashlight (lots of web friends from the other side of the pond) but yes that could be mistaken here in the US!
I think this is a good idea, I will take a gander before I put the new pump on just to make sure. Of course all this working with gas tanks is becoming annoying this year..... I just finished dropping the tank on my Dodge motor home a few weeks ago. I think my wife thinks I am into sniffing gas or something!
Old 01-14-2014 | 05:00 PM
  #25  
17prospective buyer's Avatar
17prospective buyer
Three Wheelin'
 
Joined: Apr 2011
Posts: 1,778
Likes: 0
From: Singhampton, Ontario/London, Ontario
Default

I was just screwing around being an idiot.

I hate doing anything involving dropping a gas tank... techs just say you get used to the fumes. I can't. I get high and can't focus worth ****. Done enough warranty sender units to know.
Old 01-14-2014 | 06:39 PM
  #26  
jpitman2's Avatar
jpitman2
Rennlist Member
 
Joined: Dec 2002
Posts: 5,283
Likes: 49
From: Australia
Default

As Churchill said 'two countries separated by a common language'.....
Sorry about forgetting to use 'flashlight', but I couldnt imagine too many people using a burning stick lately.
jp 83 Euro S AT 55k
Old 01-14-2014 | 08:43 PM
  #27  
the flyin' scotsman's Avatar
the flyin' scotsman
Rennlist Member
 
Joined: Oct 2004
Posts: 10,710
Likes: 53
From: Southern Alberta, Canada
Default

Originally Posted by GregBBRD
And because of this, requires a different external pump than the vehicles that do have the internal pump.....extremely important!
Slight diversion.......I have a fuel filter to replace the in tank pump to hopefully avoid the event it destructs and jams the external pump.....do I now need the older external fuel pump version?
Old 01-14-2014 | 10:43 PM
  #28  
GregBBRD's Avatar
GregBBRD
Former Vendor
 
Joined: Feb 2005
Posts: 15,230
Likes: 2,481
From: Anaheim
Default

Originally Posted by the flyin' scotsman
Slight diversion.......I have a fuel filter to replace the in tank pump to hopefully avoid the event it destructs and jams the external pump.....do I now need the older external fuel pump version?

Usually the external pumps designed for use with the in tank pumps will be noisy without the internal pump. Bosch apparently changed the design slightly, because these external pumps did not have to do any sucking.

I've never gotten too deep into it, but I'm guessing that the difference may just be a lower amperage motor in the external pumps that are force fed.
Old 01-15-2014 | 09:13 AM
  #29  
the flyin' scotsman's Avatar
the flyin' scotsman
Rennlist Member
 
Joined: Oct 2004
Posts: 10,710
Likes: 53
From: Southern Alberta, Canada
Default

thx Greg......the external pump part number does change after the '89 MY and the addition of the in-tank pump but theres no detail as to output volume/motor amperage etc. for either pump in the tech spec books.

Apologies to the OP for the diversion.
Old 01-18-2014 | 05:50 PM
  #30  
CDJQ's Avatar
CDJQ
Thread Starter
Track Day
 
Joined: Jul 2006
Posts: 22
Likes: 0
From: Merritt Island, Florida
Default

Hello again everyone,
Well a little follow up on my problem. I did replace the fuel pump which had been done before (the claw marks from a vice grip gave it away) and after a couple of turns of the key it fired right up. Now I am back to the other end of the problem which is poor running. Basically it starts and idles fine and even on acceleration everything is fine.... but when you let off the gas the motor drops RPM's and it either stalls or nearly stalls. Any thoughts of where I should start looking on that one?

While I was under the car I did recover all the wires since the sheathing has fallen apart - plus add a little tranny fluid (oh that was fun!). Also threw in a couple of muffler hangers that had broken.
Once again thank you everyone for the excellent information helping me sort through this. Maybe just Maybe this car will make its way out of the garage in the near future (that would probably make the wife much happier...)
Brett


Quick Reply: 1987 928 S4 - Fuel Pump Question



All times are GMT -3. The time now is 06:45 AM.