Lubricant for Reinstalling Injectors

[isby]

What say you all re: lubricant that should be used on injector o-rings when reinstalling in a 3.2 Carrera? Silicone paste? Molykote? Other? Thanks!

[proporsche]

Sachs lubricant works the best
https://aftermarket.zf.com/remotemedia/migrated/services/workshop-service/import-brands/technology-in-practice-1/fatcushion-tube-zoom-zf_w960.jpg?v=101070070

[isby]

Much appreciated. Appears to be available from our host and so I'll pick up a tube.

[john walker's workshop]

Silicone paste, just a light smear.

[stlrj]

WD40 works for me.

[theiceman]

silicone paste. manual just says soak them in gas..

[jjeffries]

WD40, synthetic grease, KY, olive oil, dish soap ... whatever you have kicking around.

John

[Flojo]

dish soap. always at hand, for sure doesn't attack rubber, vanishes by itself

[walt]

All of the above plus Dow 111 specifically made as an o-ring lube. You can find small tins of this online for not to much $$.

[jlex]

But isn't silicone supposed to be harmful to sensors? O2 sensor maybe? Ordinary grease may be the safer alternative.

[Mike Andrew]

I soaked mine in gas per the manual and they went in with no issues.

I think any of the suggestions above will work just fine.

[isby]

Got my '84 3.2L injectors back from RC Fuel Injection - the report is pretty interesting (although -- for some reason -- my wife did not find it nearly as interesting as I did -- go figure). It clearly shows that the injectors were sorely in need of service:



My question to the group is, once the injectors and rails are re-installed, is there a start-up protocol that should be followed given all the air in the fuel system? Or do you just crank it until it fires up?

[cabmandone]

When I put mine in after cleaning I just hit the key. Don't know if that's right or wrong but it worked. Now, I'd probably wait a few seconds since my car has a tune that runs the pump for a few seconds to prime the system. If you really want you could install the injectors and put a jumper on the fuel pump fuse to run the pump for a few seconds and prime.

To your original question, I think I used some Sil glyde when I installed my injectors.

BTW, I don't know why wives don't find that stuff as interesting as we do.

[pmax]

Originally Posted by theiceman

silicone paste. manual just says soak them in gas..

Whew, good to know ... cause that’s what I used on the CIS injectors.