Author Topic: Fuel Injection Pump  (Read 2168 times)

MikeSimon

  • Full Member
  • Platinum
  • ******
  • USA, OH, North Royalton
  • Posts: 2477
Fuel Injection Pump
« on: June 08, 2020, 12:42:38 »
I have a couple of fuel injection pumps I would like to sell. Before I offer them, what can I do short of a complete bench performance test, to make sure, they are in decent condition?
1970/71 280SL Automatic
Sandy Beige
Parchment Leather
Power Steering
Automatic
Hardtop
Heated Tinted Rear Window
German specs
3rd owner

Cees Klumper

  • Full Member
  • Platinum
  • ******
  • USA, CA, Fallbrook
  • Posts: 5721
    • http://SL113.org
Re: Fuel Injection Pump
« Reply #1 on: June 08, 2020, 23:44:34 »
I would install them on my own car, see how they do? Bit of work but not too bad. You probably get very quick at after the second or third one. In fact I may 'try this at home' with my own 10+ pumps one day.

P.s. yesterday I had to double-check the new timing belt install on my '86 300ZX as it was not running right after I did the initial job on Saturday (turned out to be two spark plug wires had quietly halfway unseated from the distributor cap, duh). The original installation took me easily 7 or 8 hours, as it was the first time for me installing a new timing belt + tensioner. Lots of staring into the engine bay, thinking. Yesterday it took maybe three hours. I remembered the sequence of steps, which tools to use for what, even down to all the bolt sizes.
Cees Klumper
1969 Mercedes 280 SL automatic
1968 Ford Mustang 302 V8
1961 Alfa Romeo Giulietta Sprint Coupe 1600
1962 FIAT 1500S OSCA convertible
1972 Lancia Fulvia Coupe 1.3
1983 Porsche 944 2.5
1990 Ford Bronco II

Shvegel

  • Inactive
  • Platinum
  • ******
  • USA, OH, Cleveland Heights
  • Posts: 2978
Re: Fuel Injection Pump
« Reply #2 on: June 09, 2020, 03:38:16 »
Verify the rack is free and then I usually put a 17mm socket on a drill, lay the pump inlet side up, pour transmission fluid into the pump and run it with the drill.  By moving the throttle you should be able to verify flow increase or decrease.  Not much can go wrong except a piston can stick which means the rack won't move.  That can usually be fixed fairly easily.

Taleb

  • Associate Member
  • Senior
  • ***
  • USA, NY, SPRINGFIELD GARDENS
  • Posts: 159
Re: Fuel Injection Pump
« Reply #3 on: June 09, 2020, 08:32:36 »
hi , can I have the model number ( R --- ) ….thanks

MikeSimon

  • Full Member
  • Platinum
  • ******
  • USA, OH, North Royalton
  • Posts: 2477
Re: Fuel Injection Pump
« Reply #4 on: June 10, 2020, 15:49:57 »
Thanks Pat! That seems an easy way to check the basics. Pumps are R24s and R25s
1970/71 280SL Automatic
Sandy Beige
Parchment Leather
Power Steering
Automatic
Hardtop
Heated Tinted Rear Window
German specs
3rd owner

Berggreen

  • Full Member
  • Senior
  • ***
  • Denmark, Zealand, Gentofte
  • Posts: 233
Re: Fuel Injection Pump
« Reply #5 on: June 14, 2020, 22:38:26 »
Thanks Pat! That seems an easy way to check the basics. Pumps are R24s and R25s

Hi Mike

Sounds interesting, especially the R25s!

Please let me know what you have and what your prices are, after you have testes them.

Thanx,

Christian
02/1971 MB 280SL (aut.) - olive green 291H
11/1970 MB 280SL (man.) - silver 180G
12/1977 MB 350SE (aut.) - deep green 825H
03/1969 Volvo 1800S (man.) - dark green 94