Ad0911

Now I feel I have to ask a real dumb question, even after looking through the WSM Volumes 1 and 1A, and the parts list. It is about time to put all parts of my engine together again, but since I do not have the car and the engine at home (engine is out of the car) I cannot see for myself. Looking through all the parts I just cannot see how the CIS fuel distibutor with the throttle body is fixed to the engine. Do I need some kind og bracket that I overlooked. As I see it now:
The air filter housing sits on 2 brackets.
the CIS fuel distribbutor is fixed to the air filter housing with a piece of rubber hose (OEM)
The throttle body sits on top of that.
The inake manyfold is mounted to the throttle body with a piece of rubber house (OEM)
The intake headers (spider legs) are fixed to the heads and to the manyfold with a piece of rubber hose (OEM)

So to me it looks like the CIS fuel distributor with the barndoor and throttle body sort of hangs freely in space, dangling on 2 pices of rubber hoses.

I must be wrong here. What am I missing?

allan29

Hi .

They are 4 silent block between the engine and the air housing .
Part #1 on the picture .

Petza914

4 rubber isolators thread into 4 female ports then nuts go on top of the other ends to hold it in place. They're like rubber fuel pump mounts.


Here are the forward 2 (center of the photo in a bit)

Here are the rear two near the red coolant bridge pipe and vacuum hoses

Ad0911

Thanks all. This explains some parts in the parts tray I have for the CIS housing. I guess it is time for some new ones.
Can anyone explain why there are 3 spring compressed screwes that hold the top to the bottom part of the CIS unit while there are so many solid screws that have the same function?

Petza914

[
Can anyone explain why there are 3 spring compressed screwes that hold the top to the bottom part of the CIS unit while there are so many solid screws that have the same function?
[/QUOTE]

I'm curious about this too. I replaced mine with regular ones and don't seem to have an issue.

Rob Edwards

One of the great unsolved mysteries of the CIS intake setup. Last time I asked Greg Brown he didn't have an answer either. I have heard guesses about being mitigation for backfires but I don't see how that works since the springs are in coil bind already...