Originally posted by SVTNupe:
When you put the chain back on the cams, did you just line up the timing marks???
Danger Will Robinson. On some Duratechs (both 2.5 and 3.0), the cam timing marks are mismarked and useless. Unless you like to smash valves into pistons. I am not sure if it affects all Duratechs from all vintages. Get your local Ford dealer to give you a copy of TSB 98-25-14. Or drop $20 at
www.alldata.com . It'll have all the details.
You have 2 options:
1) Do it the hard and right way, using a degree wheel and a dial indicator. Although the actual specs needed for this on the cams are quite mysterious. Not found in the FSM, even our SVT contact here couldn't find the complete specs needed to do this right (for the SVT cams). If you search Performance for "SVT cam" you'll probably find the thread I started and Troy @ SVT has the best details anyone has come up with on those specs.
2) Use the less precise and easier way right off the above mentioned TSB. "Count the links from here to yon, and to and fro, etc., etc." Although if this isn't done right and you want to revert to option #1, doing it with the engine installed in the bay will NOT be easy.
Mine was done with #2. Seems OK, but if I had the choice (knowing what I know now), I'd have had #1 done. Maybe one day someone will measure the SVT cams on a 2.5 they pulled.
