Pre 84 Trucks 1st gen pickups

Emissions vacuum spaghetti`

Old Feb 22, 2013 | 10:15 AM
  #1  
thetundrawolf's Avatar
Thread Starter
Registered User
 
Joined: Dec 2012
Posts: 100
Likes: 0
Emissions vacuum spaghetti`

Okay so I have a 1982 Toyota RV (Which is a 1982 Toyota Pickup).

I took a pic of the mostly faded vacuum diagram on the inside of the hood...

When I realize it's for the 20R engine, and right now there's a 22R engine inside (Which I just rebuilt) So either the hood is different, or they put a 22R engine in it.

Now, this engine has the usual spaghetti vacuum hoses, and of course I didn't label a damn thing.

There's even a vacuum switch I've not seen in *any* diagram, yet.

Autozone lists all the vacuum diagrams from 85 on, and I have the 85 FSM and the 83 FSM, but something tells me this 22R might not be an 82, anyway.

I *really* need help with this but I don't know where to turn.

Name:  IMG_20130222_111800_zpsd217521c.jpg
Views: 696
Size:  149.6 KB

Name:  IMG_20130222_111811_zps0883e6b3.jpg
Views: 435
Size:  102.8 KB

Name:  IMG_20130222_111826_zps61eb04b8.jpg
Views: 440
Size:  136.4 KB

Last edited by thetundrawolf; Feb 22, 2013 at 10:26 AM.
Reply
Old Feb 22, 2013 | 03:57 PM
  #2  
thetundrawolf's Avatar
Thread Starter
Registered User
 
Joined: Dec 2012
Posts: 100
Likes: 0
Okay, so I got some good vacuum diagrams for the Celica/ Supra 1982. It solved the upper vacuum issues. I only have one more thing to solve.

I guess it's not an EACV, just an ACV because it's not electronically controlled.

I used a vacuum pump to determine which inlet causes it to divert smog pump air to the exhaust manifold, but there are 3 (!!!) other ports. The picture that Autozone gives shows all the connections except where they connect to the vacuum manifolds on the intake manifold. They give no detailed diagram, only these overviews.



Can anyone help me figure out what goes where on the EACV valve as far as vacuum? I don't have the VSV valve for the EACV (three, or four inlets). Instead, the third nipple on the filter connected to the intake is capped, and the lower right diaphragm on the EACV, right hand nipple has a plug, leaving only four connections for the EACV valve.

Here's the EACV



Here are the four nipples under the intake manifold that need to go to the EACV somehow

Name:  IMG_20130222_164317_zpsb1da4525.jpg
Views: 402
Size:  98.1 KB

Here's the filter at the intake manifold. the third nipple I had to "borrow" to repair one of the thermal VCV's.

Name:  IMG_20130222_164216_zps33210391.jpg
Views: 364
Size:  85.7 KB

Can anyone tell me where this line is supposed to go, the one that has a hose and a bolt connected?

Name:  IMG_20130222_165113_zpse244fdf7.jpg
Views: 391
Size:  87.6 KB

Last edited by thetundrawolf; Feb 22, 2013 at 06:23 PM.
Reply
Old Feb 23, 2013 | 06:13 AM
  #3  
thefatkid's Avatar
Registered User
 
Joined: Jan 2006
Posts: 106
Likes: 0
From: Littleton, CO
It looks like the air pump valve is on the lower right of that diagram. It looks like your missing the VSV on the carb that controls the air pump valve. The diagram looks correct for your vintage of truck. The one line you broke off of that filter to fix a vsv looks like it was needed per that diagram.

In your last picture. The line with the bolt in it is a fuel pump return line. Your Toyota fuel pump should have 1 inlet and 2 outlets. My guess it has been converted to electric?

After looking at that mess you have, I'm glad I have an 83 fed/can emissions truck. I have about 1/4 the vacuum routing that you have. I don't have an air pump either, just pulse air injection.
Reply
Old Feb 23, 2013 | 06:38 AM
  #4  
thetundrawolf's Avatar
Thread Starter
Registered User
 
Joined: Dec 2012
Posts: 100
Likes: 0
Originally Posted by thefatkid
It looks like the air pump valve is on the lower right of that diagram. It looks like your missing the VSV on the carb that controls the air pump valve. The diagram looks correct for your vintage of truck. The one line you broke off of that filter to fix a vsv looks like it was needed per that diagram.

In your last picture. The line with the bolt in it is a fuel pump return line. Your Toyota fuel pump should have 1 inlet and 2 outlets. My guess it has been converted to electric?

After looking at that mess you have, I'm glad I have an 83 fed/can emissions truck. I have about 1/4 the vacuum routing that you have. I don't have an air pump either, just pulse air injection.
Right... But they capped off some of the lines to omit the vsv. If I could only determine where those four vacuum lines go on that eight port manifold connector I would be okay!
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
kawazx636
The Classifieds GraveYard
34
Oct 6, 2021 03:03 PM
Steven.m.paulk
86-95 Trucks & 4Runners
4
Jun 7, 2020 10:45 AM
zytra
86-95 Trucks & 4Runners
32
Jan 24, 2019 03:16 PM
dbollier123
Pre 84 Trucks
8
Sep 29, 2015 05:23 PM
Keithstoyota
86-95 Trucks & 4Runners
3
Sep 27, 2015 07:29 AM


Thread Tools
Search this Thread

All times are GMT -8. The time now is 05:04 AM.