Timing - gunsight? - SaabCentral Forums
*
Home Saab Pictures Saab Classifieds Saab Dealer Listings Saab Forum Saab Forum


Go Back   SaabCentral Forums > Saab C900, 1979-1993 & '94 Convertible (C=classic) > C900 Workshop

C900 Workshop Classic 900 (1979-1993 & '94 Convertible) Technical Forum.

SaabCentral.com is the premier Saab Forum on the internet. Registered Users do not see the above ads.
Reply
 
Thread Tools Display Modes
  #1  
Old 1st May 2006
SteveTheFolkie's Avatar
SteveTheFolkie SteveTheFolkie is offline
Saab Lunatic
 
Join Date: Jan 2006                                                
Location: Pennsylvania, USA
My Saabs: 1987 900 8V
Posts: 4,078
Default Timing - gunsight?

Just a quick question since my Bentley manual hasn't arrived yet - when I look at my flywheel I see a "gunsite" (round hole) with a line transecting it (well, if it was solid it'd transect it - as it is there's a gap where the hole is) - am I correct to assume that I set my timing (20 BTDC on my '85 NA) at that line? I didn't see any other fixed points of reference. Just re-set it yesterday and it's running fine - not pinging on 87 octane or dieseling when I shut it down (as it had been before) - so I figure I'm correct - but just wanted to verfiy -

Also can't recall a vehicle that uses three bolts to fix the distributor in place like the Saab does - thought I was getting weak until I found the one on the underside of the dist!

thanks

Steve
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2  
Old 1st May 2006
jetman jetman is offline
Saab on the Brain!
 
Join Date: Sep 2002                                                
Location: Guelph Canada
My Saabs: 1984 T8
Posts: 6,934
Default

Yes and yes! Its really fun when you have a leaking dizzy o-ring and it gums up the bottom bolt.
Reply With Quote Quick reply to this message
  #3  
Old 1st May 2006
SteveTheFolkie's Avatar
SteveTheFolkie SteveTheFolkie is offline
Saab Lunatic
 
Join Date: Jan 2006                                                
Location: Pennsylvania, USA
My Saabs: 1987 900 8V
Posts: 4,078
Default

.... dealing with wires, vacuum lines and other stuff "hovering" above the gunsite is a real joy as well - someone had set the timing to 16V turbo (16BTDC) which was giving me a bit of a ping under load and a bit of dieseling when I shut down - so I figured it was advanced - brought it back (to 20BTDC - as specified in the manual) and all seems well - starts easier also (who'd have guessed?) -

thanks

Steve
Reply With Quote Quick reply to this message
  #4  
Old 1st May 2006
nutcase's Avatar
nutcase nutcase is offline
Super Moderator
 
Join Date: Mar 2003                                                
Location: The Nut Hut
My Saabs: 1978 99T in black; 1983 99GL in Beige
Posts: 11,185
Default

The "gunsight" is for a Saab timing tool that is a sensor that reads the dowel in the flywheel. To use the timing marks on the flywheel there is a line in teh palstic cover, which is repeated on the engine itself if the cover is removed.
__________________
Photo Gallery
Reply With Quote Quick reply to this message
  #5  
Old 1st May 2006
SteveTheFolkie's Avatar
SteveTheFolkie SteveTheFolkie is offline
Saab Lunatic
 
Join Date: Jan 2006                                                
Location: Pennsylvania, USA
My Saabs: 1987 900 8V
Posts: 4,078
Default

... so I may still be off by 5 or so degrees (estimating the distance I think the line is from the gunsite - if my recollection of the line is correct - versus the diameter of the flywheel in degrees) - I'll give a look when I get home tonight - thanks for the additional information -

At least you can reach the distributor while poking the timing light down at the cover AND there's no mechanical fan to chew off fingers or timing light wires!

Steve
Reply With Quote Quick reply to this message
  #6  
Old 1st May 2006
jetman jetman is offline
Saab on the Brain!
 
Join Date: Sep 2002                                                
Location: Guelph Canada
My Saabs: 1984 T8
Posts: 6,934
Default

Quote:
Originally Posted by SteveTheFolkie
... so I may still be off by 5 or so degrees (estimating the distance I think the line is from the gunsite - if my recollection of the line is correct - versus the diameter of the flywheel in degrees) - I'll give a look when I get home tonight - thanks for the additional information -

At least you can reach the distributor while poking the timing light down at the cover AND there's no mechanical fan to chew off fingers or timing light wires!

Steve
I lost a $200 timing light to a dufas friend I lent it to who sheered it off in the cooling fan of whatever domestic beast he was fixing. Now I have a $30 replacement. Which actually works just fine for me.
Reply With Quote Quick reply to this message
  #7  
Old 1st May 2006
nutcase's Avatar
nutcase nutcase is offline
Super Moderator
 
Join Date: Mar 2003                                                
Location: The Nut Hut
My Saabs: 1978 99T in black; 1983 99GL in Beige
Posts: 11,185
Default

I've broken many a cheap strobe Just bought a more rugged (and much more expensive!) one in the vauge hope I can use it more than once.
__________________
Photo Gallery
Reply With Quote Quick reply to this message
  #8  
Old 1st May 2006
a squared a squared is offline
Active Member
 
Join Date: Apr 2006                                                
Location: The New Jersey
My Saabs: '95 900S 2.3 liter non-turbo
Posts: 42
Default

Quote:
Also can't recall a vehicle that uses three bolts to fix the distributor in place like the Saab does - thought I was getting weak until I found the one on the underside of the dist!


Most Hondas are this way.
Reply With Quote Quick reply to this message
  #9  
Old 1st May 2006
SteveTheFolkie's Avatar
SteveTheFolkie SteveTheFolkie is offline
Saab Lunatic
 
Join Date: Jan 2006                                                
Location: Pennsylvania, USA
My Saabs: 1987 900 8V
Posts: 4,078
Default

Quote:
Originally Posted by a squared
Most Hondas are this way.
.. which would explain why I've not run into one before. I drove a rather pathetic excuse for a car called the Honda 600 many many years ago - then I drove a CRX-HF for a bit - as a loaner from a friend while I was working on my VW - that encapsulates my honda experience. I've never been impressed by their vehicles - they always seemed to lack imagination and be rather bland. Perhaps when I retire in 25 years or so they'll "excite" me - but for now I'll pass, thanks. I've always migrated towards European vehicles or (for a few years in my mis-spent youth, when gas was cheap) American muscle cars ('63 Impala SS 409 dual-quad 4spd, 70 Buick GSX 455 4spd and (right before I got married) a 1969 Boss 302 Mustang 4spd) -
I'm not saying it's a bad design - just seemed a bit "overkill" to me -

Steve
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
Reply

Bookmarks

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the SaabCentral Forums forums, you must first register.
Please enter your desired user 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.



Thread Tools
Display Modes

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

Forum Jump


All times are GMT -4. The time now is 12:19 AM.



Powered by vBulletin® Copyright ©2000 - 2014, vBulletin Solutions, Inc.

top of page | sitemap | email us



copyright © 2003 - 2011 saabcentral.com, All rights reserved http://www.whiter.co.uk - valid xhtml - valid css
SaabCentral is an independently run website and is not affiliated in any way to Saab Automobile AB.


Garage Plus vBulletin Plugins by Drive Thru Online, Inc.