TPI Tuned Port Injection discussion and questions. LB9 and L98 tech, porting, tuning, and bolt-on aftermarket products.
Sponsored by:
Sponsored by:

91 z28 Camaro 350 TPI

Thread Tools
 
Search this Thread
 
Old 08-07-2013, 06:43 PM
  #1  
Junior Member
Thread Starter
 
Ruerio's Avatar
 
Join Date: May 2012
Posts: 8
Likes: 0
Received 0 Likes on 0 Posts
91 z28 Camaro 350 TPI

I bought my Camaro last fall with a blown transmission. After having it rebuilt and sometime(been stored in my polebarn) Im getting it up at running. The car starts with no trouble other then a tick I hear from somewhere in the motor. There are a few things that alarm me. Hose unplugged(pics below) ect. I have little to no experience with cars and looking for whatever help I can get. Below are a few pictures and a video of the "tick"

They replaced the one valve cover with this after market one. Is it ok to leave this line open like that? or should I buy the factory one bk

This is a green wire that is cut and going no where

This is an open line next to the transmission fluid

More cut lines off the exhaust manifold



Last edited by Ruerio; 08-07-2013 at 08:49 PM.
Old 08-07-2013, 08:38 PM
  #2  
Supreme Member

iTrader: (13)
 
vetteoz's Avatar
 
Join Date: Apr 2005
Location: Not in Kansas anymore
Posts: 7,732
Likes: 0
Received 11 Likes on 11 Posts
Car: 82 Z28
Engine: 383 SP EFI/ 4150 TB
Transmission: T400
Axle/Gears: QP 9" 3.73
Re: 91 z28 Camaro 350 TPI

Resize your pics a LOT SMALLER

Not everyone wants to spend time downloading a pic straight off your camera that is 45" x 25" and takes up 2Mb.
Check the size before you unload

This item ( the PCV valve) being used to plug a hole is supposed to be in the drv side rocker cover where the breather is
and connected to the vac hose you show.
If not sealed that open hose should be sucking air in ?



Last edited by vetteoz; 08-07-2013 at 08:46 PM.
Old 08-07-2013, 08:43 PM
  #3  
Supreme Member

iTrader: (13)
 
vetteoz's Avatar
 
Join Date: Apr 2005
Location: Not in Kansas anymore
Posts: 7,732
Likes: 0
Received 11 Likes on 11 Posts
Car: 82 Z28
Engine: 383 SP EFI/ 4150 TB
Transmission: T400
Axle/Gears: QP 9" 3.73
Re: 91 z28 Camaro 350 TPI

The lines sealed on the exhaust are for the AIR injection (pollution control ). Commonly done
Not a problem unless you need them in place to past inspection

Green wire is usually to a sender in the head for the temp gauge.
Does yours work?
Old 08-07-2013, 08:48 PM
  #4  
Junior Member
Thread Starter
 
Ruerio's Avatar
 
Join Date: May 2012
Posts: 8
Likes: 0
Received 0 Likes on 0 Posts
Re: 91 z28 Camaro 350 TPI

Yes it is! I put on the old valve cover on and connected it as shown






I also noticed that the oil preasure drops to around 5 psi during idle and bk to 30 when gas is applied. Is this normal
Old 08-07-2013, 08:51 PM
  #5  
Junior Member
Thread Starter
 
Ruerio's Avatar
 
Join Date: May 2012
Posts: 8
Likes: 0
Received 0 Likes on 0 Posts
Re: 91 z28 Camaro 350 TPI

No the temp gauge isnt working! Im sorry im not sure how to resize the images.
Old 08-07-2013, 08:53 PM
  #6  
Supreme Member

iTrader: (13)
 
vetteoz's Avatar
 
Join Date: Apr 2005
Location: Not in Kansas anymore
Posts: 7,732
Likes: 0
Received 11 Likes on 11 Posts
Car: 82 Z28
Engine: 383 SP EFI/ 4150 TB
Transmission: T400
Axle/Gears: QP 9" 3.73
Re: 91 z28 Camaro 350 TPI

Originally Posted by Ruerio
I put on the old valve cover on and connected it as shown
Do you have the supply hose from the TB to the pass side rocker cover connected?

Old 08-07-2013, 08:55 PM
  #7  
Junior Member
Thread Starter
 
Ruerio's Avatar
 
Join Date: May 2012
Posts: 8
Likes: 0
Received 0 Likes on 0 Posts
Re: 91 z28 Camaro 350 TPI

Yes it is connected!
Old 08-07-2013, 08:58 PM
  #8  
Supreme Member

iTrader: (13)
 
vetteoz's Avatar
 
Join Date: Apr 2005
Location: Not in Kansas anymore
Posts: 7,732
Likes: 0
Received 11 Likes on 11 Posts
Car: 82 Z28
Engine: 383 SP EFI/ 4150 TB
Transmission: T400
Axle/Gears: QP 9" 3.73
Re: 91 z28 Camaro 350 TPI

Originally Posted by Ruerio
the oil preasure drops to around 5 psi during idle and bk to 30 when gas is applied. Is this normal
If the gauge is accurate ; No
Should be 10 -15 @ hot idle

Originally Posted by Ruerio
the temp gauge isnt working! .
Look for a sender with a spade terminal in the head between the front two spark plugs on drv side or rear two on pass side
As a gauge test ,ground the green wire somewhere and see what the temp gauge does when you turn the key on.
If the needle moves ,most likely the gauge is fine and the wire / sender unit is the problem


Old 08-07-2013, 09:26 PM
  #9  
Junior Member
Thread Starter
 
Ruerio's Avatar
 
Join Date: May 2012
Posts: 8
Likes: 0
Received 0 Likes on 0 Posts
Re: 91 z28 Camaro 350 TPI

I was able to find this on the drivers side, between the two sparks plugs. Is this what you were talking about? The wire is stripped but I grounded it out and the temp gauge moved when I started the car




Im not sure if the gauge is right or not. Are there any things I could to trouble shoot this ?

Sorry again I have never little knowledge of cars. This was my way to learn in a way

Ive also change the size of the pictures taken from my camera hopefully that helps

Last edited by Ruerio; 08-07-2013 at 09:36 PM.
Old 08-09-2013, 12:12 PM
  #10  
Supreme Member

 
thunderstick's Avatar
 
Join Date: Jun 2000
Location: VA
Posts: 1,295
Likes: 0
Received 0 Likes on 0 Posts
Car: '91 Z28
Engine: L98 5.7L TPI
Transmission: 700R4
Axle/Gears: 323's
Re: 91 z28 Camaro 350 TPI

that is the temperature sending unit... the green wire you speak of should be attached to it with a 'slide-on' connector. if the wire is just cut off, you can get replacement connectors with a lead at autozone or some other place. make sure you protect the wire from the exhaust, tho...
Old 08-11-2013, 03:16 PM
  #11  
Junior Member
Thread Starter
 
Ruerio's Avatar
 
Join Date: May 2012
Posts: 8
Likes: 0
Received 0 Likes on 0 Posts
Re: 91 z28 Camaro 350 TPI

Got the temp gauge working. Still have the high oil pressure. Its sets around 30 when driving then back down to 5 when sitting. I notice an oil leak today. Still trying to locate where its coming from.
Old 08-11-2013, 05:14 PM
  #12  
Junior Member
Thread Starter
 
Ruerio's Avatar
 
Join Date: May 2012
Posts: 8
Likes: 0
Received 0 Likes on 0 Posts
Re: 91 z28 Camaro 350 TPI

Ok Im trying to identify where the leak is coming from. Any ideas?














What is this?

Old 08-11-2013, 05:32 PM
  #13  
Junior Member
Thread Starter
 
Ruerio's Avatar
 
Join Date: May 2012
Posts: 8
Likes: 0
Received 0 Likes on 0 Posts
Re: 91 z28 Camaro 350 TPI

Is there anywhere where I can get a manual for my engine? Something that will show me what all the parts are on the engine
Old 08-11-2013, 11:08 PM
  #14  
Supreme Member

iTrader: (13)
 
vetteoz's Avatar
 
Join Date: Apr 2005
Location: Not in Kansas anymore
Posts: 7,732
Likes: 0
Received 11 Likes on 11 Posts
Car: 82 Z28
Engine: 383 SP EFI/ 4150 TB
Transmission: T400
Axle/Gears: QP 9" 3.73
Re: 91 z28 Camaro 350 TPI

Originally Posted by Ruerio
Is there anywhere where I can get a manual for my engine? Something that will show me what all the parts are on the engine
The best you can get is the factory service manual (FSM ) the mechanics at the GM dealership used

http://www.ebay.com/itm/1991-Chevrol...3ca80c&vxp=mtr


but if you know nothing about your car then even this Haynes book will teach you what is what.
Just nowhere as good as the factory manual when it comes to sorting out problems


http://www.ebay.com/itm/1982-1992-CHEVY-CAMARO-SERVICE-MANUAL-SHOP-BOOK-Z28-RS-91-90-89-88-87-86-85-84-/281148000659?pt=Motors_Manuals_Literature&hash=item4175ba0993&vxp=mtr
Old 08-12-2013, 02:28 AM
  #15  
Member

iTrader: (2)
 
C-Titan's Avatar
 
Join Date: Aug 2006
Location: Collegeville PA
Posts: 443
Likes: 0
Received 2 Likes on 2 Posts
Car: 91 Z-28
Engine: 360TPI
Transmission: PA Racing 700r4
Axle/Gears: 3:73
Re: 91 z28 Camaro 350 TPI

looks like the rear main seal blew out
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Frozer!!!
Camaros for Sale
35
01-19-2024 04:55 PM
Vintageracer
Camaros for Sale
12
01-10-2020 05:33 PM
wruiz
TPI
15
08-13-2015 09:07 PM
gta power
Exhaust
1
08-13-2015 06:15 AM
Sanjay
Engine/Drivetrain/Suspension Parts for Sale
1
08-12-2015 03:41 PM



Quick Reply: 91 z28 Camaro 350 TPI



All times are GMT -5. The time now is 10:08 AM.