Pagoda SL Group

W113 Pagoda SL Group => Drive train, fuel, suspension, steering & brakes => Topic started by: bpossel on April 14, 2008, 17:30:34

Title: Vacuum Dashpot - Total Elimination!
Post by: bpossel on April 14, 2008, 17:30:34
Recently my IP Pump was rebuilt by Pacific Fuel Injection
Pacific also altered the IP Pump using a Bosch Factory modification issued in the early 70s that allowed for the total elimination of the vacuum dashpot unit.  A cam adjustment, ... Pacific sent me the Bosch update article, which I have scanned in my PC as a pdf file.

If anyone is interested, let me know and I will email it to you.
From what I understand... this adjustment can only be made by a professional with Bosch IP Pump test equipment.

For those of you with the later 113’s that have this vacuum dashpot, you probably know what a real pain it is to get it adjusted right…  I am happy that they were able to eliminate this piece from the fuel/air mixture adjustment ritual…

Bob :)

bpossel  (Memphis, TN.)
'71 280SL  /  '97 E320
Title: Re: Vacuum Dashpot - Total Elimination!
Post by: Peter van Es on April 15, 2008, 06:23:26
I'll add the contents to the Technical Manual, section on Injection Pumps. .. but it might take a little while.

Peter

1970 280SL. Also known as 'admin@sl113.org' and organiser of the Technical Manual (http://www.sl113.org/wiki/pmwiki.php).
Title: Re: Vacuum Dashpot - Total Elimination!
Post by: mrfatboy on April 16, 2008, 16:19:23
May I ask how much the rebuild was from Pacific?

1969 280sl
Signal Red
4 Speed
Title: Re: Vacuum Dashpot - Total Elimination!
Post by: bpossel on April 16, 2008, 17:01:52
$1,100.  Price depends on whats needed....  
Bob

quote:
Originally posted by mrfatboy

May I ask how much the rebuild was from Pacific?

1969 280sl
Signal Red
4 Speed



bpossel  (Memphis, TN.)
'71 280SL  /  '97 E320
Title: Re: Vacuum Dashpot - Total Elimination!
Post by: mrfatboy on April 16, 2008, 19:38:29
thanks for the info.  Why did you choose Pacific over H&R?

1969 280sl
Signal Red
4 Speed
Title: Re: Vacuum Dashpot - Total Elimination!
Post by: bpossel on April 16, 2008, 20:54:36
oh boy!  Here we go... Can I answer your question?
Yes, if this site is for the people.  No if it is for the vendors.
H&R (nice people), redid my pump 3 years ago.
Also paid them $1,100.
Thanks, Bob

bpossel  (Memphis, TN.)
'71 280SL  /  '97 E320