tookwik

How am I suppose to take this little sucker off w/o removing too much else? or is it possible? please say it is possible! Every time I get close to finishing putting my UIM on something else snaps... this is such a pain in the ***. I've somewhat decided that either its time for a vacuum job or going non-sequential.

The first picture just points out the general part that I need to remove and the second picture points out my actual problem and why I need to remove the bitch. ANY help is appreciated. I kinda need the car running by Tuesday.

Mahjik

iTrader: (1)

If you are just removing the solenoid, cut the hoses in half and then pull the solenoid out.

Replace with new solenoid and new hoses (zip tied).

zUMIEz

iTrader: (2)

The solenoid simply locks to the rack by a tab on the bottom side. You will need to push/pull the solenoid towards the passenger side of the car and it will come free. They fit snug and most dried out solenoids will simply break off. Because you need to replace the solenoid, it is no biggy as the new one will then just snap into the rack. You are going to need to go two deep, however, as the solenoid that is broken is the one below the solenoid with the yellow vac line. A pain in the ***, but do-able. Don't get discouraged, but do as Majik said cut the vac lines and do not try to pull them off. You will simply end up snapping more of the nipples off.

adam c

iTrader: (2)

If that is your double throttle solenoid, I would not replace it. Just cap the line on both sides of the UIM to eliminate any vacuum leaks. The double throttle acts to keep you from driving the car at full boost before it is fully warmed up. By bypassing it, you will need to be sure and not drive the car at full boost when it is cold.

tookwik

what about the electrical connection on the back side of the solenoid? (towards the passenger) Do I need to disconnect it first and then pull the solenoid off the rack from underneath it?

And if I understand you correctly... I need to take the top one off, then the bottom one?

tookwik

Can somebody tell me if this is the double throttle solenoid? I really would like to get rid of it. Maybe this is my perfect opportunity. BTW - I looked at the vac. diagram and could not tell.

Snook

iTrader: (12)

I do believe it is the double throttle. dont have the file that tells you the order on this computer

yes electrical connection first then you have to push the solenoid to the driverside firewall I believe. its on with a clip.

tookwik

Thanks Surge. I also just checked another vac diagram I forgot that I had and sure enough, it is the double throttle. Looks like I'll be getting rid of it.

Snook

iTrader: (12)

np...make sure you have a good drill bit when you take out the double throttle in the upper manifold. the screws will strip almost for certain so you have to drill them out. then you take out the 2 circles then the part holding them will come out. If you have a dremel you can cut off the little thing that the rod of the actuator goes on and then throw on a block off plate. no non seq talk bro! night

adam c

iTrader: (2)

You do not have to do anything other than cap the two vacuum lines going into each side of the manifold. When you disable the double throttle solenoid, the double throttle stays in the open position. Some people have removed it completely. I don't believe that this provides any real benefit, as bypassing the solenoid will keep it open.

Anyway, if you just want to get it running well, cap the lines, and see how it runs

tookwik

I thought there was only one line going into the front side of the manifold and one going into the backside, but not into the manifold... into the actuator. Are there 3 lines total that should be capped then?




BTW - where does the vacuum line go coming from the back of the solonoid? I can't seem to trace it.

Mahjik

iTrader: (1)

Looking at the diagram, that looks to be the Charge Relief solenoid (the one on the top on the front side):

http://www.scuderiaciriani.com/rx7/v...e_diagram2.jpg

The double throttle solenoid should be on the bottom row (not very visible) with the other solenoids unless I'm looking at the diagram incorrectly.

In this case, if you are still sequential, I wouldn't recommend plugging it.

tookwik

The one I snapped was on the bottom row and I am officially positive that it is the double throttle solenoid. I had my local 7 mechanic stop by and take a look at it.

Where does the vacuum line coming from the back of the solenoid go to? I traced the 2 on the front side up to the actuator and front side of the UIM but can't seem to follow the 3rd one. (the diagram you linked to does not show it for some reason, the one I posted does.)

adam c

iTrader: (2)

I'm not certain about a third line. I don't remember there being one.

Mahjik

iTrader: (1)

Yep, sorry, I saw the first picture you had which had the Charge Relief solenoid circled. I never looked at the second picture which was showing "under" the CR solenoid.

I don't think there is a 3rd line (as Adam stated). I've still got most of my car apart so I'll see if I can verify that later tonight.

RX7Wishing

goddamn.. i broke the same one.. Anyhow i will send you one for free if you need it.. i have plenty of the laying around ( Thanks 93BlackFD )

adam c

iTrader: (2)

There is a third line. I am looking at the replacement solenoid that I bought, and have not installed.

The third line appears to be a connection to the main vacuum system. When I blow thru it, air goes thru the upper front nipple. I assume that when activated, the air will blow thru the lower nipple.

Damn, I may have a vacuum leak.

Mahjik

iTrader: (1)

Hey Adam,

I think that 3rd line is the "line to nowhere" for MT's.

http://www.scuderiaciriani.com/rx7/v...se_diagram.jpg

tookwik

Is it this one? The one circled in red?

Mahjik

iTrader: (1)

Judging from the diagram, I would say yes.

adam c

iTrader: (2)

Sorry, I have been in the garage replacing pillow ball joints in the rear lower arms. No more noise What a relief.

Anyway, so you guys think the nipple on the passenger side of the solenoid goes to nowhere? If that is correct, just do what I said above