Ur quattro Fuel Injector Seals

Benjamino · 02-03-17, 12:29 PM

Hi all,

Any advice on changing the injector seals on an MB quattro please?

Looked on Mr Payne's website for a documented procedure, to no avail.

Thanks in advance

mikes2 · 02-03-17, 01:31 PM

Best to take the injectors out the head. There's a CIS tool although it's not that great to use. search for CIS injector puller

Watch you don't break the plastic inserts and ensure the shrouds don't fall in

missfire · 02-03-17, 01:36 PM

I use a open ended spanner about 12/13mm maybe (behind the fuel line connection, is it 14mm?) then stick something else in as a fulcrum the lever them and out, sounds rough but it's not really as long as you apply the force in the same alignment as they went in!

sinbin5t · 02-03-17, 02:18 PM

Quote:

Originally Posted by missfire

I use a open ended spanner about 12/13mm maybe (behind the fuel line connection, is it 14mm?) then stick something else in as a fulcrum the lever them and out, sounds rough but it's not really as long as you apply the force in the same alignment as they went in!

13mm spanner then a screw driver as a lever behind the spanner, got them out easily that way on the 5T, but if you rush it you can snap the fuel line connector for the injector

Hanuman · 02-03-17, 03:19 PM

With Missfire (same school of midbutchery?)

Leave the injectors connected.
Open ended spanner, big enough to go around the shaft of the injector, small enough to get a grip behind the nut on the line.
Piece of wood to act as a fulcrum.

If the seals are old (presuming same setup as WR), then they won't be so forgiving.

Getting a good position so that you push out straight, instead of too much sideways is a big plus.

Other useful items to have
Ibuprofen
Bandages
Kitty litter for leaked fluids, like blood
Elastoplast
Super glue (for really big holes in personnel)

sinbin5t · 02-03-17, 04:11 PM

Quote:

Originally Posted by Hanuman

Getting a good position so that you push out straight, instead of too much sideways is a big plus.

Other useful items to have
Ibuprofen
Bandages
Kitty litter for leaked fluids, like blood
Elastoplast
Super glue (for really big holes in personnel)

ChrisG · 02-03-17, 05:13 PM

4v6 · 02-03-17, 06:09 PM

Quote:

Originally Posted by Hanuman

Other useful items to have
Ibuprofen
Bandages
Kitty litter for leaked fluids, like blood
Elastoplast
Super glue (for really big holes in personnel)

Remind me never to hold onto something while you hit it with a hammer....

Hanuman · 02-03-17, 06:13 PM

The problem, Tony, is not the hitting it with the hammer part. It's the failure to hit it, while accurately hitting something else.

sinbin5t · 02-03-17, 07:04 PM

Quote:

Originally Posted by Hanuman

The problem, is not the hitting it with the hammer part. It's the failure to hit it, while accurately hitting something else.

A quote i can use in the future

02-03-17, 01:31 PM	#2
mikes2 4 ring whore! Classic Audi Club Member Join Date: Nov 2007 Location: Polmont Posts: 2,617	Best to take the injectors out the head. There's a CIS tool although it's not that great to use. search for CIS injector puller Watch you don't break the plastic inserts and ensure the shrouds don't fall in __________________ 1991 90 quattro 20v sport 1991 90 quattro

02-03-17, 01:36 PM	#3
missfire making wooden things Classic Audi Club Member Join Date: Dec 2009 Location: cow land Posts: 8,154	I use a open ended spanner about 12/13mm maybe (behind the fuel line connection, is it 14mm?) then stick something else in as a fulcrum the lever them and out, sounds rough but it's not really as long as you apply the force in the same alignment as they went in! Last edited by missfire; 02-03-17 at 01:39 PM.

02-03-17, 03:19 PM	#5
Hanuman Trickster Classic Audi Club Member Join Date: May 2009 Location: Heckling from the cheap seats, Phnom Penh, KoW Posts: 7,006	With Missfire (same school of midbutchery?) Leave the injectors connected. Open ended spanner, big enough to go around the shaft of the injector, small enough to get a grip behind the nut on the line. Piece of wood to act as a fulcrum. If the seals are old (presuming same setup as WR), then they won't be so forgiving. Getting a good position so that you push out straight, instead of too much sideways is a big plus. Other useful items to have Ibuprofen Bandages Kitty litter for leaked fluids, like blood Elastoplast Super glue (for really big holes in personnel) __________________ I wish they would keep the damned Chinese away now that I can go home, so that I can enjoy Fish amok and a draught Angkor Last edited by Hanuman; 02-03-17 at 03:22 PM.

02-03-17, 06:13 PM	#9
Hanuman Trickster Classic Audi Club Member Join Date: May 2009 Location: Heckling from the cheap seats, Phnom Penh, KoW Posts: 7,006	when you nods yer 'ead, i'll 'it it... The problem, Tony, is not the hitting it with the hammer part. It's the failure to hit it, while accurately hitting something else. __________________ I wish they would keep the damned Chinese away now that I can go home, so that I can enjoy Fish amok and a draught Angkor

02-03-17, 05:13 PM	#7
ChrisG Senior Member Classic Audi Club Member Join Date: Dec 2007 Location: Bracknell, Berks. Posts: 1,465