Matt04XLT
New Member
- Joined
- January 23, 2018
- Messages
- 2
- Reaction score
- 0
- City, State
- Ca
- Year, Model & Trim Level
- 1991
2004 Ford Explorer V6 4.0 K series XLT 2 Wheel Drive. 146K and never been serviced. Got it off a guy about a month ago. Drove it ran rich with a bunch of fuel issues. Fixed all the issues and got it cleared ready for smog. Few days after, TIMING TENSIONER goes bad and caused the REAR GUIDE to bust & THE CRANK TENSIONER to bust as well. Driver side tensioner just failed but the Guide was ok. PULLED THE ENGINE TO find a remanufactured Trans. I've done the OIL CHANGE/SPARK PLUGS/VALVE COVER GASKET/EGR so far. Engine turned on even with 2 out of 3 guides busted no problem just super loud clanking. Either way, engine is out on the stand. Had a tough time cranking it 6 revolutions to get it all on TDC. plastic was lodged behind the REAR lower sprocket. Literally could not over turn cams to get any movement to undo the jammed plastic. I decided to lock the Harmonic, take out the spark plugs an make sure no valve marks were on the piston heads. No marks, and cylinder 1 and 5 are confirming TDC is set. I have no choice to loosen up the FRONT CAM SHAFT BOLT AND SPROCKET, while on TDC w/ the Cam Shaft Sprocket locked to the block. As soon as it loosens the driver side cams made a noise like the FRONT cam springs released the tension and shifted the the driver side cams to match and are now identical with the REAR passenger side timing marks in the direction of 3 and 9 o'clock. I look in the in the spark plug journal to see the piston head an everything is still the way it was when I started...my question is WHAT DID IT POSSIBLY DO WHEN I RELEASED THE FRONT CAM SHAFT BOLT? The Rear Cam Bolt has never broke the seal yet. The front cassette and cam shaft sprocket is off. OIL PAN AND LADDER ARE COMPLETELY DROPPED. I'm hoping my timing may be a slight hair off an can be adjusted to still come through with a fix , but I've searched an no one I've seen so far had this happen in that sequence. I have the timing guide kit. CHAINS/ SPROCKETS/TENSIONERS & GUIDES. Getting a few more things as well to but before I do I need to know. Is it going to be ok? And how do I set the timing for the cams back manually with out damaging anything??