Engine & Internal Chat about beefing up your engine's insides here.

timing marks mystery

Old 05-21-2009, 06:15 AM
Junior Member
Thread Starter
Join Date: May 2009
Posts: 23
Default timing marks mystery

I am not afraid to say - I am lost. Please, help.

91 Civic LX, DPFI engine. Automatic.

can someone, please, post CLEAR PICTURE OF WHAT THOSE TIMING MARKS SUPPOSED TO LOOK LIKE? and which one is the timing one?

this is what i have on my engine:
1. on camshaft sprocket, UP mark, 2 horizontal marks, and a 3rd mark, pointing at about 50 degrees angle towards radiator. and yes, there's a plastic cover or something, below the 3rd mark, with a pointer up. 3rd mark and that pointer ARE NOT aligned, with the horizontal marks parallel to the engine block.(i have found reference to the 3rd mark as "SI camshaft mark" and with SI camshaft, horizontal notches are not supposed to be used for TDC setting, but the angled mark. but that's in CRX manual)
2. on drivebelt pulley, there are 2 sets of marks: 3 notches in a cluster, with middle notch red; then, about 3/4 of an inch clockwise, set of 2 notches. NO WHITE MARK.
3. on timing belt sprocket, there's a notch; on engine block, there's a pointer. with red mark aligned with timing belt cover and 2 horizontal notches aligned with engine block, that pointer is about 1 1/2 tooth misaligned with the sprocket notch. but!! it looks like that, should i have sprocket mark aligned with pointer, it'll align the 3rd mark on the camshaft sprocket with its pointer.
4. engine starts and runs fine, no signs of bad timing. slight "too advanced timing" noise. red notch(now it's shiny, so i CAN SEE IT) is about an inch clockwise towards the firewall on drivebelt pulley. distributor maxed out on retarding timing.
belt was previously replaced, as it says "made in Germany" on it. timing marks were previously aligned exactly the way i have them now.

btw, are those belts supposed to be that loose? one that was there was loose, i did by the book tensioner adjustment - it's loose same way. of course, Haynes proved itself to be useless in this area.....

basically, counting all the notches, i have 12 marks to figure.....
Related Topics
Thread Starter
Last Post
Mechanical Problems & Technical Chat
05-06-2019 04:54 PM
Mechanical Problems & Technical Chat
09-22-2010 06:39 AM
Mechanical Problems & Technical Chat
06-27-2009 02:47 PM
Mechanical Problems & Technical Chat
10-17-2007 09:16 PM
Engine & Internal
09-24-2007 07:53 PM

Thread Tools
Search this Thread
Quick Reply: timing marks mystery

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.