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  #1  
Old 02-04-2013, 01:52 PM
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Fuel Injection Pump differences R18 and R20

Hi

I discover that my 250SL (late) with engine n║003505 has a Bosch injection pump PES 6KL 70A120 R20 and not the PES 6KL 70A120 R18Z (or R18Y).

1- Should I remove the R20 and change it to a R18Z ?
2- What are the diferences?
3- Is it possible to adjust (convert) one R20 to work as R18Z ?


The R20 was the pump for the 280SE a different engine.

Many thanks
SÚrgio

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  #2  
Old 02-04-2013, 05:48 PM
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Location: Northern Va.
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Check the engine number. If it's an M130, it's correct. If it's an M129, it's incorrect.
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Regards

Warren

Currently 1965 220Sb, 2002 FORD Crown Vic Police Interceptor

Had 1965 220SEb, 1967 230S, 280SE 4.5, 300SE (W126), 420SEL

ENTER > = (HP RPN)

Not part of the in-crowd since 1952.
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  #3  
Old 02-04-2013, 05:59 PM
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Dear Warren

You are right, 003505 is the Chassis number. The engine number is 129982-10-001821.
Can I change an R18Y for an R20 ?

Regards
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  #4  
Old 02-04-2013, 11:40 PM
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Location: Northern Va.
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My technical data book for 1966 only had engine types 129.980 and 981. It does not list a 982. and does not have the 250SL. The sedan injection pump had the 18 suffix.

I suggest you go to Welcome - Mercedes Benz 230SL, 250SL, 280SL Pagoda Group and check the technical section or ask your question in the drivetrain subforum. I don't have that information and don't want to give you bad information.
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Regards

Warren

Currently 1965 220Sb, 2002 FORD Crown Vic Police Interceptor

Had 1965 220SEb, 1967 230S, 280SE 4.5, 300SE (W126), 420SEL

ENTER > = (HP RPN)

Not part of the in-crowd since 1952.
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  #5  
Old 02-04-2013, 11:55 PM
wbain5280's Avatar
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Join Date: May 2001
Location: Northern Va.
Posts: 3,386
This page:

Pagoda SL Group Technical Manual :: Fuel / Injection

shows the 280SL pumps as R20 and higher.

Good luck.

__________________
Regards

Warren

Currently 1965 220Sb, 2002 FORD Crown Vic Police Interceptor

Had 1965 220SEb, 1967 230S, 280SE 4.5, 300SE (W126), 420SEL

ENTER > = (HP RPN)

Not part of the in-crowd since 1952.
Reply With Quote
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