LIM replacement questions

[douellette]

on a 96 3100. Is it required to remove the fuel rail/injectors to remove the lower intake?

 

and what do i use for sealant on the bolts when reinstalling it? i read somewhere loctite, but what kind?

[carkhz316]

I don't think it is absolutely necessary, but some may find that it might make it easier. As far as the bolts. Don't use any kind of Loctite. Use a thread sealant instead. It's white and looks like "Elmers glue"

[douellette]

I don't think it is absolutely necessary, but some may find that it might make it easier. As far as the bolts. Don't use any kind of Loctite. Use a thread sealant instead. It's white and looks like "Elmers glue"

 

cause i cant remember if i used any sealant at all when i did the gaskets on my engine

 

and when i took the rail off of my car, it ripped one of the injectors out of the rail, bent the little clip thingy, and it was very very difficult to get the injectors to go back into the manifold.

[AL]

I disconnect the fuel lines and leave the fuel rail on the intake

[KingVee]

I disconnect the fuel lines and leave the fuel rail on the intake

BRILLIANT! Can you do it on the 3800 too?

[AL]

I dont remember... I would have to look at the set up again... My car isnt here to go check

[Crazy K]

I always pull the rail and replace the O-rings...

[carkhz316]

I disconnect the fuel lines and leave the fuel rail on the intake

BRILLIANT! Can you do it on the 3800 too?

No because the rail arches over the upper plenum and is in the way. It has to be removed.

[douellette]

so what sealant then? just some high temp stuff?

[carkhz316]

No, just a "thread sealant" That's exactly what it is called. It's white. As far as doing the intake, black RTV (or equivalent) for the ends of the block inbetween the heads before you install the intake itself.

[douellette]

No, just a "thread sealant" That's exactly what it is called. It's white. As far as doing the intake, black RTV (or equivalent) for the ends of the block inbetween the heads before you install the intake itself.

 

you dont mean that like "plummers" tape, the white stuff on a roll? im assuming you mean stuff that comes in a tube.

[Octavarium454]

No, just a "thread sealant" That's exactly what it is called. It's white. As far as doing the intake, black RTV (or equivalent) for the ends of the block inbetween the heads before you install the intake itself.

 

you dont mean that like "plummers" tape, the white stuff on a roll? im assuming you mean stuff that comes in a tube.

 

Both the tape and the stuff in the tube are the same thing just in a different form.

[carkhz316]

^what he said. Though I usually go with the tube sealant for engine stuff, and teflon tape for any fluid lines, but that's just me.