Author Topic: Injection pump torque specs  (Read 8699 times)

December 05, 2009, 07:38:35 pm

745 turbogreasel

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Injection pump torque specs
« on: December 05, 2009, 07:38:35 pm »
OK, so i have read 50+ threads on gov mods, timing shenanigans, pump resealing, etc..
and not once seen a spec for how tight to make even one part of the sensitive and delicate flower that is the Bosch VE pump.
I don't mean how tightly it is affixed to the vehicle.

Is it trade secret info?  will agents in black sedans kill me if I figure it out?

Post what you know, and I'll edit all the info into this post for FAQ posterity.
Also, any fasteners requiring lube, locktite, sealer,etc.



Thanks



Reply #1December 07, 2009, 04:47:59 am

745 turbogreasel

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Re: Injection pump torque specs
« Reply #1 on: December 07, 2009, 04:47:59 am »
Busted :o

Delivery valves - MK3 Bentley says 45 NM / 33 ft-lbs.

I found epoxy/sealant around the copper seal washers for the LDA follower pivot screws

Also a little Hi tack holding the gasket to the top cover.

After grinding the the anti fool collar of the max fuel screw, you can dress the threads with a 1.00 pitch metric thread file.
« Last Edit: December 07, 2009, 04:49:46 am by 745 turbogreasel »

Reply #2December 07, 2009, 07:40:31 am

burn_your_money

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Re: Injection pump torque specs
« Reply #2 on: December 07, 2009, 07:40:31 am »
Busted :o

Haha. I changed my mind. I figured it's set up as a FAQ and I know it does get asked a lot. I had forgotten that I had made that first post though.

Carry on.
Tyler

Reply #3December 07, 2009, 10:53:53 pm

745 turbogreasel

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Re: Injection pump torque specs
« Reply #3 on: December 07, 2009, 10:53:53 pm »
If removing,, you should match mark or record:
all linkage arms
max fuel screw
governor shaft
throttle lever arm stops
idle screw

Unconfirmed:
Roller assemblies are wear matched, and their parts should stay together
Delivery valves are pressure matched, so don't cross parts between them.
Plunger return springs are shim matched, and must stay with their home pin.
« Last Edit: December 08, 2009, 06:15:42 am by 745 turbogreasel »

Reply #4December 08, 2009, 07:13:12 pm

745 turbogreasel

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Re: Injection pump torque specs
« Reply #4 on: December 08, 2009, 07:13:12 pm »
bump for input


My pump is back together, and I didn't see anything I'm too worried about, but it would be nice to know how its supposed to be  done.
Now its just a game of waiting for my phototach to show up in the mail.

edit:
timing plug 9 nm, 6.5 ftlb

fuel supply &return lines and delivery pipes 18 ftlb 25 nm
« Last Edit: December 08, 2009, 08:12:45 pm by 745 turbogreasel »

Reply #5February 24, 2010, 06:18:05 pm

jimbote

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Re: Injection pump torque specs
« Reply #5 on: February 24, 2010, 06:18:05 pm »
anyone have the pump shaft pulley nut torque for a TDI ALH pump....searched and searched can't seem to find it... ???