D5254T (to 2002, Audi) - 2.5D brake vac pump woes - Page 2

huron · May 15th, 2011, 22:09

That's right, once the nuts are a turn or so loose they should be finger tight.
If not , rotate the engine till they slacken. It took me a couple of tries before I hit the right spot.

BillB · May 16th, 2011, 13:35

OK, I get that but what about the spring pressure - isn't there a spring pushing outwards?

huron · May 16th, 2011, 17:22

When the pushrob is on the heel of the cam the spring is constrained in the pump so that there is a slight clearance like valve to cam clearance.

clarke2025 · May 18th, 2011, 12:21

I agree with you on that one, I am the same. All of a sudden when there is that little bit of pressure,

May 18th, 2011, 12:21	#14
clarke2025 New Member Last Online: May 18th, 2011 12:21 Join Date: May 2011 Location: dfdf	I agree with you on that one, I am the same. All of a sudden when there is that little bit of pressure, __________________ fortune 1000

May 15th, 2011, 22:09	#11
huron Master Member Last Online: Dec 19th, 2020 16:24 Join Date: Apr 2009 Location: Bodmin	That's right, once the nuts are a turn or so loose they should be finger tight. If not , rotate the engine till they slacken. It took me a couple of tries before I hit the right spot.

May 16th, 2011, 13:35	#12
BillB VOC Member Last Online: Apr 24th, 2024 13:58 Join Date: Dec 2002 Location: Bristol	OK, I get that but what about the spring pressure - isn't there a spring pushing outwards?

May 16th, 2011, 17:22	#13
huron Master Member Last Online: Dec 19th, 2020 16:24 Join Date: Apr 2009 Location: Bodmin	When the pushrob is on the heel of the cam the spring is constrained in the pump so that there is a slight clearance like valve to cam clearance.

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