timing set replacement on 454 bbc - 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 08-04-2010, 03:24 PM
Registered User
 
Join Date: Aug 2010
Location: mount vernon wa
Posts: 13
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
timing set replacement on 454 bbc

so i recently chenged the timing set on my 454 to a double roller set. the old cam gear was so worn that it had jumped time. wharn i insatlled the cam gear i could only get it to go on to the cam with the timing dot in the 12 o'clock position due to the position of the a;ignment dowel on the cam. and i know that its supposed to be in the 6 o'clock posion in order to line up with the mark on the crank gear which is at the 12 o'clock position. i was just wondering if this means that my cam was 180 degrees off because i had cranked the engine with #one plug out till i heard compression then turned it to zero with a wrench. but when i took off the timing cover the timing marks were in the right positions but since it jumped the cam was a tooth or so off. so i dont really understand why i couldnt put the new cam gear on in the 6 o'clock position instead of the 12 o'clock. any suggestions are appreciated thanks for reading

    Advertisement
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2 (permalink)  
Old 08-05-2010, 08:38 AM
richard stewart 3rd's Avatar
Registered User
 

Last journal entry: 351W rebuild
Last photo:
Join Date: Jan 2006
Location: tremont, pa.
Age: 69
Posts: 2,217
Wiki Edits: 0

Thanks: 13
Thanked 15 Times in 14 Posts
Hi,
It doesn't really matter 12 & 6 or 6 & 12 but it's easer to line the
dots up @ 6 & 12, just turn the cam until the dot is at 6 o-clock & lined up with the crank dot, button it up. That will put you in the #6 firing position, turn the crank once more & your @ #1 firing position drop the disturber in.
Good luck,
Rich
Reply With Quote Quick reply to this message
  #3 (permalink)  
Old 08-05-2010, 02:33 PM
Registered User
 
Join Date: Aug 2010
Location: mount vernon wa
Posts: 13
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
id assume u mean to turn the cam clockwise correct? thanks for the help its appreciated
Reply With Quote Quick reply to this message
  #4 (permalink)  
Old 08-05-2010, 02:37 PM
poncho62's Avatar
Out of the Loop Moderator
 
Last wiki edit: Streetbeasts links
Last journal entry: at car show
Last photo:
Join Date: Oct 2003
Location: Hanover, Ontario, Canada
Age: 62
Posts: 16,858
Wiki Edits: 5

Thanks: 20
Thanked 247 Times in 201 Posts
If you still have the cover off, turn the crank one full turn......That should bring the cam gear mark to 6 o'clock. When ever I put a timing set on, I always turn it over by hand a couple of full turns and then recheck my marks.......just to make sure I did it right.
__________________
Ontario Rodders

Budget RVs
Reply With Quote Quick reply to this message
  #5 (permalink)  
Old 08-05-2010, 02:51 PM
NOlowrider's Avatar
US Navy-Retired
 
Last photo:
Join Date: Dec 2004
Location: New Orleans
Age: 46
Posts: 415
Wiki Edits: 0

Thanks: 0
Thanked 3 Times in 3 Posts
Like Richard said...
If you align the cam at 6 o'clock and the crank at 12 o'clock this will make it easier to eyeball the dots. But, you are at the #6 firing postion. Once you have it aligned (12 and 6) just turn the crank 360* and drop the dist. This will put you at #1 firing position. Both at 12 is #1 position.

Or, you can leave it and drop the dist in at the #6 lug. Most people just spin it another 360* for simplicity.

If you loose track of where you are, it's ok at this point. As long as the dots where aligned. At the #1 position, both intake and exhaust valves on the #1 cylinder will be closed. If the intake is off just look at the lifters. They should be down in the lifter bore. You will be able to look at the others to tell. If the intake is on, just waite till you have the push rods in and adjusted and watch the rocker arms.

Last edited by NOlowrider; 08-05-2010 at 03:02 PM.
Reply With Quote Quick reply to this message
  #6 (permalink)  
Old 08-05-2010, 07:07 PM
Registered User
 
Join Date: Aug 2010
Location: mount vernon wa
Posts: 13
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
thanks guys i really appeciate it i hope i remember that next time maybe i will take the cover off again when i get the motivation again and try those suggestions
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


Similar Threads
Thread Thread Starter Forum Replies Last Post
First BBC, urgent help with timing! Forza1 Engine 20 08-05-2010 07:38 PM
454 Ignition Timing Question leejoy Engine 58 09-13-2008 08:40 AM
How to correctly set timing and advance? Cousin_Joe Hotrodding Basics 4 02-28-2008 05:31 PM
HELP! New timing set too loose dran04u Engine 1 06-26-2003 04:14 PM
All a matter of timing with BBC and an EFI? vernw Engine 13 01-20-2003 04:26 PM


All times are GMT -6. The time now is 03:39 PM.


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.