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Posted by: Schnell944 Jun 16 2003, 06:31 PM

was working in the engine bay today and ended up poping this line out....I havent had the car for long, and havent gotten my haynes manual yet so I cant for the life of me figure out where it goes...the picture shows the end of it and the resti fo it is in the background....you can see the clear hose plugs into a metal inline thing that connects to other hoses.

Posted by: ! Jun 16 2003, 07:09 PM

Where does it go to? It looks like a vacuum line, could be for a retard or advance for a dizzy....you running carbs or FI?

Posted by: Bleyseng Jun 16 2003, 07:12 PM

Really hard to tell from that picture. Is the car a 1.7 or 2.0? My guess is a 1.7.
Boy, time to replace the battery tray and some of those rubber/plastic hoses with the real McCoy ones especially the high pressure fuel injection ones before you have a fire,
My wild ass guess is the MPS.
Geoff

Posted by: Schnell944 Jun 16 2003, 07:26 PM

its a 1.7 L FI. yaya, i know about the tray already. MPS?

Posted by: ! Jun 16 2003, 07:32 PM

Any thing missing a hose?

Got a hose diagram? BTW....wasn't gonna say anything about the rusty tray....BTDT....

Posted by: Schnell944 Jun 16 2003, 07:36 PM

tried to see if anything was missing anything...but obviously i couldnt, and I dont have a a diagram right now. can u guys see the place where i described where it's comign from? it's in the lower left corner. thnx

Posted by: Bleyseng Jun 16 2003, 09:47 PM

Oh ok I see the MPS under the decel valve. I would hook that hose back up to the flux capacitor, Chewie!


Geoff

Posted by: ChrisReale Jun 16 2003, 09:51 PM

Does it hook up to the anti-flashback thing above the thermometer cable, where it attaches to the cooling flap arm? There should be three hoses on it...??

Posted by: rhodyguy Jun 17 2003, 06:33 AM

have you checked pelican for plumbing diagrams? i bet the pass side heat is a bit weak.

kevin

Posted by: Aaron Cox Jun 17 2003, 09:26 AM

i think auto atlanta has a "good" diagram to work with

Posted by: Curvie Roadlover Jun 17 2003, 11:17 AM

courtesy of Pelican Parts


Attached image(s)

Posted by: Schnell944 Jun 17 2003, 03:31 PM

what does the MPS look like and what does MPS stand for....I'm gonna go try and figure this out now....just got home from work. thanx for the help so far guys

Posted by: Lawrence914-6 Jun 17 2003, 03:38 PM

The MPS is a manifold pressure sensor. It's aluminum, and about the size of a hand grenade.

If you look in your photo, you have a thin clear vacuum line going to the small fitting on it. It's just below/behind the battery.

-Rusty

Posted by: Jeff Bowlsby Jun 17 2003, 03:39 PM

That metal sleeve looks like it mates with either another hose or a fitting/elbow.

On my 74 2.0 I have a sleeve like that that connects to the PCV elbow on the oil filler tower cap.

Posted by: Schnell944 Jun 17 2003, 03:43 PM

ahhhh...that is where the unplugged hose is connectee to on one side....so i guess it goes in the air filter housing?? couldnt find a hole for it last night...maybe i was tired...i'll go check.

Posted by: jkeyzer Jun 17 2003, 03:48 PM

Looks like the breather hose for the right side head.

Posted by: Schnell944 Jun 17 2003, 04:06 PM

ok, so i took another look. there are 3 hoses connected to the MPS. 2 black ones and the clear one im trying to find a home for. looked on the air filter and can see 2 hoses connected to it....but cant find a place for a third like in the diagram.....I think I am missing something totally obvious here. again, sorry for the dumb questions, but I'm not familiar w the car yet.

Posted by: Schnell944 Jun 17 2003, 04:09 PM

sorry, seems as though I overlooked Bleyseng's post....where is the flux capacitor and roughly what does it look like. thnx 4 your patience

Posted by: jkeyzer Jun 17 2003, 04:10 PM

The MPS only has one hose.


Look down by the head on the right hand side. There should be a hole in the engine tin close to one end of the head (I think the rear) that you can slide that hose back into. You might need a flashlight to look down in there.

Posted by: Curvie Roadlover Jun 17 2003, 04:28 PM

Posted by: Schnell944 Jun 17 2003, 04:32 PM

ok, do u kno where the clear hose for it goes then? there is a hold in the psngr rear of the manifold but the hose doesnt seem to really fit in there...nore can i see a place to plug it in (used a flash light to look in there)

Posted by: jkeyzer Jun 17 2003, 04:43 PM

There should be a hose for the drivers side, and a hose for a passengers side, both with the metal sleeve to slide into the hole in the engine tin.

Then both of these should meet at a T at the front left side of the fan shroud, the flame trap goes here I believe. I think one of the hoses for that T goes to the air cleaner.

I'm going from memory, my car does not have the breather setup (early 1.7) but I have played the "where does this hose go" game on a late 1.7 before.

Posted by: Schnell944 Jun 17 2003, 06:45 PM

there was a hose missing in a plug that goes to a little canister that is behind the oil filler area. I took a picture and will post it when i get on my other comp tonight. i have no idea if this is where is should go, but its the only logical place i could see.

Posted by: Schnell944 Jun 17 2003, 08:05 PM

hey there......here's the picture i was talking about...sorry for the low quality. hopefully u can tell where it went. there's sort of a Y shaped attachment to the metal thingw/ another hose going off.

Posted by: Dave_Darling Jun 20 2003, 12:33 PM

The MPS has one vacuum line. It hooks to the manifold. (Or "plenum". Or "intake air distributor". Or "the thing that the throttle body bolts up to.")

The Decel Valve acts as a way for air to bypass the throttle body--one large hose hooks up to the rubber pipe "in front of" the throttle body (between the air filter and TB), and the other large hose hooks to the manifold. The bypass is controlled by manifold pressure as well. The small hose hooks up to the manifold. Actually, it hooks up to a "stacked elbow" (a rubber F-shaped piece where the top of the F is much more skinny than the bottom of the F) that is plugged into the manifold. You can fake up something similar with brass (or even plastic) plumbing supplies.

The PCV (Positive Crankcase Ventilation) system that everyone else is talking about has a couple of pieces. There are little pipes sticking out of the cylinder head just aft (right side) or in front (left side) of the intake runner pipes. Hoses go on those and connect to the "flashback valve" (AKA "flame trap", AKA "funny-shaped T") on the left side of the motor by the fan shroud and thermostat flaps cross-shaft. The third connection on that T goes to the air cleaner. The other piece goes from the PCV valve (on the oil filler box) to the manifold directly.

On some early cars and some 75-76 cars (all?) there was no actual PCV valve in the oil filler box, just a hose fitting. In that case, the hose runs to the air cleaner and not to the manifold.

--DD

Posted by: vsg914 Jun 22 2003, 09:33 AM

Look at the middle of the motor where the cases mate, below and in front of the air cleaner and to the rear of the oil filler cap. There is an intake air temp sensor there. could be this one. Does the motor run without it? If so, its a breater hose.

Curt