Lt1 Help - Hot Rod Forum : Hotrodders Bulletin Board
Hotrodders.com -- Hot Rod Forum



Register FAQ Search Today's Posts Unanswered Posts Auto Escrow Insurance Auto Loans
Hot Rod Forum : Hotrodders Bulletin Board > Tech Help> Engine
User Name
Password
lost password?   |   register now

Reply
 
LinkBack Thread Tools
  #1 (permalink)  
Old 11-14-2003, 07:36 PM
WV hillbilly
 

Last journal entry: PTL 220CC
Last photo:
Join Date: Jun 2003
Location: WV
Age: 39
Posts: 784
Wiki Edits: 0

Thanks: 1
Thanked 2 Times in 2 Posts
Lt1 Help

I am helping a friend with his new 383 Lt1 build up in a 95 z28 comaro, Every thing is from TPIS, projected HP is supposed to be in the 475 range, and I have a problem, everything is complete, and we cant get it started, I removed the stock starter, replaced it with a high torque mini starter with no luck, it simply wont turn over, I removed the plugs turned it by hand then cranked it over with the plugs out, it spun freely, I put the plugs back in and it wouldnt turn over, I then purchased a brand new optima 825CRA battery thinking this was the problem, still no luck, This engine has never been fired and all internal componets are new..I checked and the grounds, I have checked everything I can think of....any Ideas?

    Advertisement

Last edited by 2wld4u; 11-15-2003 at 01:54 PM.
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2 (permalink)  
Old 11-14-2003, 08:47 PM
WV hillbilly
 

Last journal entry: PTL 220CC
Last photo:
Join Date: Jun 2003
Location: WV
Age: 39
Posts: 784
Wiki Edits: 0

Thanks: 1
Thanked 2 Times in 2 Posts
I quess Ill just have to figure it out in the morning.....geee thanks for all the help...
Reply With Quote Quick reply to this message
  #3 (permalink)  
Old 11-14-2003, 08:56 PM
BstMech's Avatar
NYOFP4RJ3CHRIS
 
Join Date: Sep 2002
Location: TN. In the corporate states of America
Age: 41
Posts: 1,552
Wiki Edits: 0

Thanks: 0
Thanked 1 Time in 1 Post
Is it possible that you have one faulty injector causing it to hydra lock?
Reply With Quote Quick reply to this message
  #4 (permalink)  
Old 11-15-2003, 04:28 AM
Auto-Part's Avatar
If you Can Dream it, You can D
 
Join Date: Oct 2003
Location: Toronto, Canada
Age: 54
Posts: 270
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Seems like the plugs are to long and they are jaming your cylinders. What is this nonsense abought mini hi-torque starters If you can't turn over an engine with a stock starter then you have major problems.
Reply With Quote Quick reply to this message
  #5 (permalink)  
Old 11-15-2003, 07:18 AM
1BAD80's Avatar
The Smell of Nitro in the morn
 
Last wiki edit: How to adjust valves Last photo:
Join Date: Jun 2001
Location: Mich
Posts: 2,423
Wiki Edits: 2

Thanks: 0
Thanked 3 Times in 2 Posts
09:36 PM on the posting, most of us old timers are getting ready for bed, or watch hockey at that time.

If it does not turn over except only with the plugs out.
The hydro lock is out, the motor has to turn over for that injector to inject gas for any cylendre, plus that cylender would spit out the gas when the plug is taken out.
Auto-Part must feel better, I think he hit this one very close.
Look at the plugs very close for witness marks.
Maybe put one in one plug at a time and see if one or all are hitting a piston. Hows the gap look?
What length plugs is called for by the manufacture of the heads ?
If it was a valve you colud not turn it over with the plugs out.
Let us know what you find.
LOL
__________________
Luv the smell of NITRO in the morning.
Reply With Quote Quick reply to this message
  #6 (permalink)  
Old 11-15-2003, 10:36 AM
BstMech's Avatar
NYOFP4RJ3CHRIS
 
Join Date: Sep 2002
Location: TN. In the corporate states of America
Age: 41
Posts: 1,552
Wiki Edits: 0

Thanks: 0
Thanked 1 Time in 1 Post
Ummm no, a faulty injector does not require the motor to turn over to be puking fuel into the intake runner. A piece of dirt/debris among other problems could hold the tip/valve open at all times. All that would be needed in this scenario is for the key to be in the run position supplying power to the fuel pump which in turn applies fuel pressure.
Reply With Quote Quick reply to this message
  #7 (permalink)  
Old 11-15-2003, 01:58 PM
WV hillbilly
 

Last journal entry: PTL 220CC
Last photo:
Join Date: Jun 2003
Location: WV
Age: 39
Posts: 784
Wiki Edits: 0

Thanks: 1
Thanked 2 Times in 2 Posts
I figured it out, I had to run a hot wire from the battery to the starter, and add a ground to the chassis to the block, I had felt I was lossing to many amps but its fixed, Im uploading some pics of it today, enjoy! oh, and by the way I was a little sleepy myself last nigh....600hp!!!! I musta been dreaming...lol
Reply With Quote Quick reply to this message
  #8 (permalink)  
Old 11-15-2003, 03:35 PM
1BAD80's Avatar
The Smell of Nitro in the morn
 
Last wiki edit: How to adjust valves Last photo:
Join Date: Jun 2001
Location: Mich
Posts: 2,423
Wiki Edits: 2

Thanks: 0
Thanked 3 Times in 2 Posts
The fuel injector works with a electrical impulse, all computer controlled on when to fire it, having the key on does not make the injector squirt fuel.
I take for granted when the motor was turned over, was by key only ?
__________________
Luv the smell of NITRO in the morning.
Reply With Quote Quick reply to this message
  #9 (permalink)  
Old 11-15-2003, 04:15 PM
BstMech's Avatar
NYOFP4RJ3CHRIS
 
Join Date: Sep 2002
Location: TN. In the corporate states of America
Age: 41
Posts: 1,552
Wiki Edits: 0

Thanks: 0
Thanked 1 Time in 1 Post
Quote:
Originally posted by 1BAD80
The fuel injector works with a electrical impulse, all computer controlled on when to fire it, having the key on does not make the injector squirt fuel.
I take for granted when the motor was turned over, was by key only ?
Yes that's correct, but the key word here is "faulty". A faulty injector is not just one that doesn't work or is plugged up, it can be one that dribbles instead of atomizing or just a plain gusher. Usually there will be a crack in the head of the injector for it to be a gusher, but dirt/debris can hold the valve open causing the same problem. A gusher will steadily flow/puke fuel regardless of pulse as long as there is fuel pressure.
Reply With Quote Quick reply to this message
  #10 (permalink)  
Old 11-15-2003, 06:10 PM
WV hillbilly
 

Last journal entry: PTL 220CC
Last photo:
Join Date: Jun 2003
Location: WV
Age: 39
Posts: 784
Wiki Edits: 0

Thanks: 1
Thanked 2 Times in 2 Posts
The injectors are fine, its running, It was just a matter of getting enough juice to the starter, whitch was the problem, I had just arrived at home last night from working on it and I was a little groggy, and I though Id toss a few questions up in the air for suggestions, That ol Ohm meter sure does come in handy....
Reply With Quote Quick reply to this message
  #11 (permalink)  
Old 11-15-2003, 08:07 PM
BstMech's Avatar
NYOFP4RJ3CHRIS
 
Join Date: Sep 2002
Location: TN. In the corporate states of America
Age: 41
Posts: 1,552
Wiki Edits: 0

Thanks: 0
Thanked 1 Time in 1 Post
Quote:
Originally posted by 2wld4u
The injectors are fine, its running, It was just a matter of getting enough juice to the starter, whitch was the problem, I had just arrived at home last night from working on it and I was a little groggy, and I though Id toss a few questions up in the air for suggestions, That ol Ohm meter sure does come in handy....
I wasn't trying to start anything with George, he must be having a brain fart today. Maybe he's just messing with me........


I'm glad you figured it out and let us know what was wrong.

I would've never guessed it would be something so simple holding you up like that seeing as how I know you're not a beginner. You must have been very tired last night.

Well, how's she run anyhow?
Reply With Quote Quick reply to this message
  #12 (permalink)  
Old 11-15-2003, 11:15 PM
WV hillbilly
 

Last journal entry: PTL 220CC
Last photo:
Join Date: Jun 2003
Location: WV
Age: 39
Posts: 784
Wiki Edits: 0

Thanks: 1
Thanked 2 Times in 2 Posts
well, being that Im not a newbe and that I fixed the problem, and it's 2wld4u, WHO's YA DADDY??????
Reply With Quote Quick reply to this message
  #13 (permalink)  
Old 11-15-2003, 11:22 PM
BstMech's Avatar
NYOFP4RJ3CHRIS
 
Join Date: Sep 2002
Location: TN. In the corporate states of America
Age: 41
Posts: 1,552
Wiki Edits: 0

Thanks: 0
Thanked 1 Time in 1 Post
She runs that good huh?
Reply With Quote Quick reply to this message
  #14 (permalink)  
Old 11-15-2003, 11:46 PM
WV hillbilly
 

Last journal entry: PTL 220CC
Last photo:
Join Date: Jun 2003
Location: WV
Age: 39
Posts: 784
Wiki Edits: 0

Thanks: 1
Thanked 2 Times in 2 Posts
put it this way, I believe this car will make you find new religion...and if not youd proboly by one of those, Ditch the Bit#h lets go racin stickers...Thats is, like all the fast cars I deal with.....they are......Nitrous ready.......and did I mention its capable of turning 7200? and that it makes over 1.25hp per cubic inch on pump gas? is that good? cause where I come from Lt1's arent that fast in stock trim, and we wont call it fast unless it will turn 10's in the 1/4...its pretty easy to do this with a carb motor, wanna try a Lt1? or do you like that other white meat.......Chicken?
Reply With Quote Quick reply to this message
  #15 (permalink)  
Old 11-16-2003, 12:11 AM
BstMech's Avatar
NYOFP4RJ3CHRIS
 
Join Date: Sep 2002
Location: TN. In the corporate states of America
Age: 41
Posts: 1,552
Wiki Edits: 0

Thanks: 0
Thanked 1 Time in 1 Post
How did you know I liked chicken?
Reply With Quote Quick reply to this message

Recent Engine posts with photos

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Hot Rod Forum : Hotrodders Bulletin Board forums, you must first register.
Please enter your desired user name (usually not your first and last name), your email address and other required details in the form below.
User Name:
If you do not want to register, fill this field only and the name will be used as user name for your post.
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.




Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools

Posting Rules
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On



All times are GMT -6. The time now is 04:09 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0 PL2
Copyright Hotrodders.com 1999 - 2012. All Rights Reserved.