Replacing WBX injectors -- Tips?

[oceanair]

Hey -- I've got new injectors from fellow Samba Marco and I'll be installing them this weekend.

Any tips -- something I should know?

For my 1.9.

Thanks -
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84 Vanagon Pop Top Conversion from Tin Top, 1970 Ghia - all sweet rides! Love em!
Previous: Green 72 Tin Top, White 72 Westy, Blue 64 Beetle, Yellow 71 Squareback, 2014 Jetta TDI Wagon - wish I could have them all back!

[Gauche1968]

Put some oil on the seals, where they enter the heads.
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1984 Vanagon GL
1984 Vanagon Westy

[DanHoug]

there is a single bolt that uses a 10mm socket that holds the injector pair in. DO NOT break that bolt off! it snaps very easy so if it is not coming out, soak with penetrating oil, tap it a 100 times with a hammer, tighten slightly or loosen trying to get some free movement. take your time to get it out if it is stubborn.

Marco's injectors use a 2 small diameter seal stacked ontop of each other. be sure to keep that configuration. also, you may want to bend a slight bow in the injector retainer held in by above bolt. this puts more down pressure on the large injector rubber ring to hold them in tighter.

examine your fuel rails and don't break the plastic nipples off... just twist the old lines loose and slice them if they don't easily pull off. use non-serrated fuel line clamps like ABA, don't use the cheese-cutter clamps that extrude rubber thru the slots.

it'd be great if you could pulse your fuel pump once the old injectors are off to rinse out the fuel rail. can't have your head up your ass when you do that so if several safety precautions don't come to mind, don't try it.

CHECK FOR LEAKS when you are done.
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-dan
60% of what you find on the internet is wrong, including this post.

'87 Westy & '89 Westy both 2.1 4spd

Past projects can be found at--
www.thefixitworkshop.com

[Ahwahnee]

Go gently with that little bolt - some PBlaster might be a good idea for an overnight soak.

I've never broken one but it can happen - perhaps by now you have an idea how cooperative or stubborn the old bolts are on your particular van.

[DanHoug]

[oceanair]

Thanks for the help... I'll be gentle!

Any other tips are appreciated -- how do the electric connections come off? Pry off the metal 'band?'
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84 Vanagon Pop Top Conversion from Tin Top, 1970 Ghia - all sweet rides! Love em!
Previous: Green 72 Tin Top, White 72 Westy, Blue 64 Beetle, Yellow 71 Squareback, 2014 Jetta TDI Wagon - wish I could have them all back!

[DanHoug]

NO! squeeze the metal band downward toward the plastic and it release
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-dan
60% of what you find on the internet is wrong, including this post.

'87 Westy & '89 Westy both 2.1 4spd

Past projects can be found at--
www.thefixitworkshop.com

[T3 Pilot]

While you are manipulating the injector wiring connectors, keep track of the seals inside...
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1988 Vanagon

The most important part in every vehicle is the nut behind the wheel......

[djkeev]

Thread about injectors.....

https://www.thesamba.com/vw/forum/viewtopic.php?t=637701

[Wildthings]

My 83 1/2 has the earlier style plugs that are a PITA to get off. You can use a dental pick or small screwdriver to get under one side of the retaining spring and pries it out of its groove. You shouldn't have to do both sides of the retainer spring just the one. While the injectors were out on the bench, I went through and lightly filed the edges of the squarish clips on the injectors where the spring grab to create a slight ram, so that now I can just wiggle the plugs off without messing with the spring.

[IdahoDoug]

Don't use oil on the seals when installing unless you have specific O ring grease that will not attack that seal. General advice is to use a rub of gasoline to lube it. When pressing the injectors into the intake, the hole has an unduly sharp machined edge. So as you're pushing down, swivel the top of the injector in a small circle like its a child's toy top nearly falling over. That will relieve pressure letting the rubber inch its way down into the hole vs trying to carve a chunk out of the rubber if its caught on the edge.

Good advice on pumping a bit out of the open hoses, and the safety comments.
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1987 2WD Wolfsburg Vanagon Weekender "Mango", two fully locked 80 Series LandCruisers. 2017 Subaru Outback boxer. 1990 Audi 90 Quattro 20V with rear locking differential, 1990 burgundy parts Vanagon. 1984 Porsche 944, 1988 Toyota Supra 5 speed targa, 2002 BMW 325iX, 1982 Toyota Sunrader

[oceanair]

Thanks everyone -- I didn't get them done yet, but these tips will all be useful this week when I do and I'll report back with anything that is worth adding.


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84 Vanagon Pop Top Conversion from Tin Top, 1970 Ghia - all sweet rides! Love em!
Previous: Green 72 Tin Top, White 72 Westy, Blue 64 Beetle, Yellow 71 Squareback, 2014 Jetta TDI Wagon - wish I could have them all back!