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#1
05-18-2010, 04:05 PM
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Vacuum Pumps:
Greetings,
I have a 617.950 with the early vacuum pump. The later, 617.951 style pumps seem to hold up better, as they have a plunger instead of a diaphragm. Can the later style pump be swapped directly onto the early engine????
__________________
 Did you just pass my 740 at 200 kmh in a 300SD?????1978 300SD 'Phil' - 1,315,853 Miles And Counting - 1, 317,885 as of 12/27/2012 - 1,333,000 as of 05/10/2013, 1,337,850 as of July 15, 2013, 1,339,000 as of August 13, 2013 100,000 miles since June 2005 Overhaul - Sold January 25th, 2014 After 1,344,246 Miles & 20 Years of Ownership 
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#2
05-18-2010, 05:37 PM
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check some parts suppliers for applications of the IP timing gear. If they are the same you should be golden.
The timing gear was changed in that period to provide a greater timing advance. I have an old style VP on the shelf I can measure if someone else can measure the cam plate. If the cam rise is different, you can swap the plates with a later version that matches the later VP.
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#3
05-18-2010, 06:00 PM
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Hmmmm.....
The eccentric in my Dad's 617.951 looks similar to my 617.950, other than the later motor doesn't have the hollow bolt for oiling....Robert
__________________
Did you just pass my 740 at 200 kmh in a 300SD?????1978 300SD 'Phil' - 1,315,853 Miles And Counting - 1, 317,885 as of 12/27/2012 - 1,333,000 as of 05/10/2013, 1,337,850 as of July 15, 2013, 1,339,000 as of August 13, 2013 100,000 miles since June 2005 Overhaul - Sold January 25th, 2014 After 1,344,246 Miles & 20 Years of Ownership
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#5
05-19-2010, 08:42 AM
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I have used an "early' diaphragm type pump on a later engine, (616s) no problem. You must swap the air cleaner top also.
__________________
 1985 Euro 240D 5 spd 140K 1979 240D 5 spd, 40K on engine rebuild 1994 Dodge/Cummins, 5 spd, 121K 1964 Allice Chalmers D15 tractor 2014 Kubota L3800 tractor 1964 VW bug "Lifes too short to drive a boring car"
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#6
05-19-2010, 09:46 AM
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That's right!!!!! The late pump uses filtered air from the air cleaner...Thanks...I had missed that...
__________________
Did you just pass my 740 at 200 kmh in a 300SD?????1978 300SD 'Phil' - 1,315,853 Miles And Counting - 1, 317,885 as of 12/27/2012 - 1,333,000 as of 05/10/2013, 1,337,850 as of July 15, 2013, 1,339,000 as of August 13, 2013 100,000 miles since June 2005 Overhaul - Sold January 25th, 2014 After 1,344,246 Miles & 20 Years of Ownership
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#7
05-19-2010, 09:57 AM
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Quote:
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#8
05-19-2010, 10:09 AM
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The early VP is allot cheaper and easier to rebuild plus the
"super super tiny supercharger' effect 
__________________
1985 Euro 240D 5 spd 140K 1979 240D 5 spd, 40K on engine rebuild 1994 Dodge/Cummins, 5 spd, 121K 1964 Allice Chalmers D15 tractor 2014 Kubota L3800 tractor 1964 VW bug "Lifes too short to drive a boring car"
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#9
05-19-2010, 12:17 PM
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Quote:
sure isn`t cheaper when new. early pump $579 and later pump $455 as per All parts X charlie
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there were three HP ratings on the OM616... 1) Not much power 2) Even less power 3) Not nearly enough power!! 240D w/auto Anyone that thinks a 240D is slow drives too fast. 80 240D Naturally Exasperated, 4-Spd 388k DD 150mph spedo 3:58 Diff We are advised to NOT judge ALL Muslims by the actions of a few lunatics, but we are encouraged to judge ALL gun owners by the actions of a few lunatics. Funny how that works
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#10
05-19-2010, 12:47 PM
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I think the later, plunger style pump is more reliable....
__________________
Did you just pass my 740 at 200 kmh in a 300SD?????1978 300SD 'Phil' - 1,315,853 Miles And Counting - 1, 317,885 as of 12/27/2012 - 1,333,000 as of 05/10/2013, 1,337,850 as of July 15, 2013, 1,339,000 as of August 13, 2013 100,000 miles since June 2005 Overhaul - Sold January 25th, 2014 After 1,344,246 Miles & 20 Years of Ownership
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#11
05-19-2010, 01:16 PM
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Quote:
 They've gone up since I last looked. The kit with the new bearing and arm is,nt cheap either but might be the best route.
__________________
1985 Euro 240D 5 spd 140K 1979 240D 5 spd, 40K on engine rebuild 1994 Dodge/Cummins, 5 spd, 121K 1964 Allice Chalmers D15 tractor 2014 Kubota L3800 tractor 1964 VW bug "Lifes too short to drive a boring car"
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#12
05-19-2010, 01:23 PM
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Quote:
I think the diaphragm type might be a simpler design. Either way those little in line fuel filters in the vacuum lines might be the best "early warning" system to catch a problem with the system. A least they make me feel better. 
__________________
1985 Euro 240D 5 spd 140K 1979 240D 5 spd, 40K on engine rebuild 1994 Dodge/Cummins, 5 spd, 121K 1964 Allice Chalmers D15 tractor 2014 Kubota L3800 tractor 1964 VW bug "Lifes too short to drive a boring car"
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#13
05-19-2010, 02:03 PM
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I haven't seen as many of the late-style pumps go bad as the early versions....
__________________
Did you just pass my 740 at 200 kmh in a 300SD?????1978 300SD 'Phil' - 1,315,853 Miles And Counting - 1, 317,885 as of 12/27/2012 - 1,333,000 as of 05/10/2013, 1,337,850 as of July 15, 2013, 1,339,000 as of August 13, 2013 100,000 miles since June 2005 Overhaul - Sold January 25th, 2014 After 1,344,246 Miles & 20 Years of Ownership
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#14
05-19-2010, 05:36 PM
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It would be interesting, I think as far as which is a better pump, theres not much chit chat, both seem to be pretty good pumps. Theres a "later" one that can (more than the 616/7) barfs its bearings and toasts your engine. Both my cars now have the "Later" 616/7 pumps.
__________________
1985 Euro 240D 5 spd 140K 1979 240D 5 spd, 40K on engine rebuild 1994 Dodge/Cummins, 5 spd, 121K 1964 Allice Chalmers D15 tractor 2014 Kubota L3800 tractor 1964 VW bug "Lifes too short to drive a boring car"
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#15
05-19-2010, 08:25 PM
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Quote:
Holy chit that's a lot of dough! Anyone use a 12V vaccum pump instead? Diesel RV's use them for the air brakes. They're about $150.
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85 300D turbo pristine w 157k when purchased 167,870 July 2025 83 300 D turbo 297K runs great. SOLD! 83 240D 4 spd manual- parted out then junked
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