Chevy C6500 truck with 454 engine install distributor with cam sensor - 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> Modern Electronic Engines
User Name
Password
lost password?   |   register now

Reply
 
LinkBack Thread Tools
  #1 (permalink)  
Old 01-22-2012, 01:06 PM
Registered User
 
Join Date: Jan 2012
Posts: 4
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Chevy C6500 truck with 454 engine install distributor with cam sensor

How to install distribuotr with cam sensor into 454 Chevy engine to be in time with crank sensor?

    Advertisement
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2 (permalink)  
Old 01-22-2012, 03:30 PM
LATECH's Avatar
Hotrodders.com Moderator
 

Last journal entry: Motor - vator
Last photo:
Join Date: Jul 2010
Location: Northeast Pennsylvania
Posts: 6,441
Wiki Edits: 0

Thanks: 354
Thanked 506 Times in 451 Posts
Is that the plastic distributor, with the hold down that only allows the distributor to go in one posistion?
Reply With Quote Quick reply to this message
  #3 (permalink)  
Old 01-22-2012, 04:16 PM
Registered User
 
Join Date: Jan 2012
Posts: 4
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Chevy C6500 truck with 454 engine install distributor with cam sensor

Yes.
The only thing this unit does is drive the oil pump and send signal to computer where cam is located.
Reply With Quote Quick reply to this message
  #4 (permalink)  
Old 01-22-2012, 04:51 PM
LATECH's Avatar
Hotrodders.com Moderator
 

Last journal entry: Motor - vator
Last photo:
Join Date: Jul 2010
Location: Northeast Pennsylvania
Posts: 6,441
Wiki Edits: 0

Thanks: 354
Thanked 506 Times in 451 Posts
IIRC there are no timing marks on the balancer, just 3 or 4 little cuts in the front edge.
What you need to do is turn the engine by hand with a socket wrench on the crank bolt, untill you get tdc #1 compression stroke.
Being there is no timing marks you have to rely on your expertise to gauge TDC through the spark plug hole.Then if you can put on a timing tape, back it up to 14 degrees BTDC.
At that point you are ready for the dizzy.If you look real close at the dizzy, where the cap touches the edge at the place it mounts, there is a number 8.
You want to drop the dizzy in the hole and end up with the rotor aiming at that number.
Now the 14 degrees BTDC may be hard to get to, but one of the little cuts in the balancer should be at the bottom where you can see it.I think that is 14 degrees when it is straight up and down, IIRC. Been several months since I did the last dizzy gear change and set one up.
Now when you get done, If it throws a code p1345, then you need to re learn the cam/crank angle. If the data stream shows that you are 7-13 degrees BTDC on the cam sync pulse timing then it is timed correctly and all you need to do is perform the relearn according to the scanner instructions.
Reply With Quote Quick reply to this message
  #5 (permalink)  
Old 01-22-2012, 06:09 PM
Registered User
 
Join Date: Jan 2012
Posts: 4
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Chevy C6500 truck with 454 engine.......

Thanks I will try this. Does the number 8 on the rotor need to match number 8 on the body of the dizzy?
Reply With Quote Quick reply to this message
  #6 (permalink)  
Old 01-22-2012, 06:14 PM
LATECH's Avatar
Hotrodders.com Moderator
 

Last journal entry: Motor - vator
Last photo:
Join Date: Jul 2010
Location: Northeast Pennsylvania
Posts: 6,441
Wiki Edits: 0

Thanks: 354
Thanked 506 Times in 451 Posts
No. Put the rotor at the little number 8 on the dizzy housing. Dont pay any attention to the firing order.Be sure when it is tightened down the rotor points at that little number 8. The 8 is to reference the dizzy as used in the 8 cylinder. Some of those dizzys had a 6 and an 8, and could be used in either a 6 or 8 cylinder, and were marked for reference accordingly.
Reply With Quote Quick reply to this message
  #7 (permalink)  
Old 01-23-2012, 08:08 PM
Registered User
 
Join Date: Jan 2012
Posts: 4
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Chevy C6500 truck with 454.....

At what point on the rotor is considered the pointer that needs to be aligned with the #8 on the dizzy housing? My counterblancer does have degree marks.
Reply With Quote Quick reply to this message
  #8 (permalink)  
Old 10-18-2015, 08:04 PM
Registered User
 
Join Date: Oct 2015
Posts: 8
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
powersurgeguy

yes, I would like to know the answer to that question also.
Reply With Quote Quick reply to this message
  #9 (permalink)  
Old 10-18-2015, 08:48 PM
Registered User
 
Join Date: Oct 2015
Posts: 8
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
454 dizzy number 8 ???

guys, There is no rotor on this distributor. how the hell can you put or point an invisible, non existent rotor at anything? There's no contacts on these. its electronic. This is an incomplete forum.
SO, the real question is, after the number 1 piston is on the exhaust stroke, backed up to 14 degrees btdc, Where does the number 8 on the dizzy, (metal top of distributor), go, or point to? before i put the flat plastic top cap on. there are no wires to this, This engine has coils on each cylinder.
Please inform me im sure its stupid obvious. Thanks
Reply With Quote Quick reply to this message
  #10 (permalink)  
Old 10-19-2015, 05:18 PM
LATECH's Avatar
Hotrodders.com Moderator
 

Last journal entry: Motor - vator
Last photo:
Join Date: Jul 2010
Location: Northeast Pennsylvania
Posts: 6,441
Wiki Edits: 0

Thanks: 354
Thanked 506 Times in 451 Posts
what year make and model do you have. It must be newer than the OPs .
More info needed
__________________
Fact is stranger than Fiction
Reply With Quote Quick reply to this message
  #11 (permalink)  
Old 10-19-2015, 06:26 PM
Registered User
 
Join Date: Oct 2015
Posts: 8
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
454 big block timing cap confusion continue

yes, its a 1999 gmc topkick total nightmare. i've just finished a complete removal and rebuild, its all back in, and i'm having trouble even getting spark, compression is only 45 lbs. everything has been torqued to specs and new bearings, rings, gaskets throughout and rebuilt heads. I did it rite, Now I am going to freak out unless this thing comes alive. help
Reply With Quote Quick reply to this message
  #12 (permalink)  
Old 10-21-2015, 05:48 PM
Registered User
 
Join Date: Oct 2015
Posts: 8
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
its a 1999 gmc C6500 top kick fresh rebuild, no spark, and I meant to say, (on the compression stroke in my previous forum script. Man, anyone help me get spark?
Reply With Quote Quick reply to this message
  #13 (permalink)  
Old 10-21-2015, 06:29 PM
LATECH's Avatar
Hotrodders.com Moderator
 

Last journal entry: Motor - vator
Last photo:
Join Date: Jul 2010
Location: Northeast Pennsylvania
Posts: 6,441
Wiki Edits: 0

Thanks: 354
Thanked 506 Times in 451 Posts
Compression is only 45 PSI. It will never run.
You must have the cam/crank timing off, or the valves are to tight.
If the cam/crank timing is off, you cannot successfully time the distributor on this engine to make it run. It simply wont fire the ignition because it (The ECM)knows the crank timing is wrong.
Get to the bottom of the compression problem first, then go back to the timing sequence as outlined.
The distributor housing willonly allow the holdown to hold the dizzy when the housing is in one spot, so getting the rotor to aim at the correct place (that little number 8 on the housing with crank at TDC number 1 cylinder compression stroke) will be key.
If you have had the bottom gear off the dizzy and don't have it on correctly (180 out) it will also not run and can cause engine damage.
__________________
Fact is stranger than Fiction
Reply With Quote Quick reply to this message
  #14 (permalink)  
Old 10-21-2015, 08:33 PM
Registered User
 
Last photo:
Join Date: Jun 2008
Location: Hardly Could Cowabunga
Posts: 976
Wiki Edits: 0

Thanks: 34
Thanked 216 Times in 182 Posts
for this topkick motor.. you need a VORTEC rotor to align the shaft when installing the distributor.. . it can be an old one.. it can be a new one..

if you look carefully.. there are 2 screws holding a cover on the top of the housing.. where the distributor cap would normally be.. under that is a conventional Vortec distributor shaft.. its probably drilled and tapped for a conventional vortec rotor..

you may now proceed as a normal vortec distributor installation.. getting the rotor to point at the \8/ in the inside of the lip of the housing..

warning... if with the crank at TDC with compression at #1.. if you cannot get the shaft to align perfectly.. DO NOT MODIFY the hold down clamp..

remove the distributor.. mark the gear on the same side as the rotor tip is installed on the top of the shaft... drive the roll pin out.. do not remove the gear.. rotate it 1/2 turn and install the roll pin.. the mark you made on the distributor gear should now be pointing the other direction..

when you install it this time.. once you get the distributor to engage the oil pump shaft and the rotor pointing in the proper direction. you should have the tip pointing directly at the \8/ on V8 models or the \6/ on V6 models..

if you have NO compression.. something else may be wrong.

if you have NO spark... something else may be wrong..

the crank sensor sends the PCM crank position signal..

the cam sensor sends the pcm cam signal to allow it to figure out which of the coils to fire... also which of the injectors to fire..

a question.. did all the ground wires get hooked up to the engine.. there are usually some along the back of the cylinder heads... those are the PCM Negative connections.. no hook up there. the PCM won't get any electrons to operate the computer.
Reply With Quote Quick reply to this message
  #15 (permalink)  
Old 10-22-2015, 08:07 AM
Registered User
 
Last photo:
Join Date: Nov 2006
Location: Woodstock
Posts: 1,227
Wiki Edits: 0

Thanks: 22
Thanked 157 Times in 135 Posts
To help any people working on the Vortec L21 BBC in the future, this is Austin's original post before this 3 year old post was dug up.

powersurge guy

peace
Hog
Reply With Quote Quick reply to this message

Recent Modern Electronic Engines posts with photos
Gear in this thread - Powered by O'Reilly Auto Parts

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:
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:
Insurance
Please select your insurance company (Optional)

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


Similar Threads
Thread Thread Starter Forum Replies Last Post
Mustang II IFS Install in 57 Chevy Truck mestes Suspension - Brakes - Steering 7 01-24-2012 08:12 AM
1978 chevy c6500 (help) jeff lex Engine 1 01-03-2011 07:53 AM
Install a 350 or 4.3 in a 1954 Chevy Truck? knothead Engine 8 08-15-2007 11:16 AM
Th400 electronic speedometer / speed sensor Chevy truck Twistedwrench Transmission - Rearend 2 08-05-2006 10:43 PM
94 chevy 305 distributor install warhorse General Rodding Tech 2 08-18-2003 06:00 PM


All times are GMT -6. The time now is 03:32 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2016, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0 PL2
Copyright Hotrodders.com 1999 - 2012. All Rights Reserved.