Timing chain tensioner failure...repeated.
06-02-2015, 10:06 AM
#21
Timing chain tensioner failure...repeated.
aside from pulling cams, what options do I have?replace the motor, or tear it apart and see what's causing it, to possibly replace it anyway. and am I correct if the cams or caps have wear, they'll need replaced to? on a motor with 158k, and the issues it's had idk if I'd wanna do that.
06-02-2015, 10:27 PM
#23
Timing chain tensioner failure...repeated.
considering it is easy. paying for it is the hard part. I think I'll park it an tear it apart this week. see what I find and report back
06-07-2015, 10:27 AM
#26
Senior Member
Timing chain tensioner failure...repeated.
Originally Posted by codybigger
can anyone answer this. would a blocked cat cause oil pressure issues/blowing tensionerz?
On the dorman parts they offer two teirs of product. One they manufacture for retailers and one that is their premium line that's a better part. Kind of like motorcraft break pads from the dealer. Motorcraft comes on red boxes but the true oem part comes in a blue box.
06-07-2015, 12:41 PM
#27
Timing chain tensioner failure...repeated.
I didn't think so, but I'm looking for any opinions I can. I'm in the process of tearing it apart today, 1 valve cover off so far then I'll see what I have inside. I'm not sure on the dorman parts, all I know is the phasers are 917-250
06-07-2015, 03:10 PM
#28
Timing chain tensioner failure...repeated.
the valve covers are off. passenger side front cam lobes which is pic 2 and 3 seem to me to have excessive wear. all 3 of the lobes show wear, but the rear 2 seem to be worst, middle by far worst. is that a correct opinion?
06-07-2015, 04:10 PM
#29
Timing chain tensioner failure...repeated.
timing cover is off. the passenger side timing chain was loose on the top side (from phaser to crank)and the tensioner is extremely tight. 2 hands I can make it move very little. driver side chain was snug, tensioner moves with 1 hand relatively easily.
06-07-2015, 05:11 PM
#30
Senior Member
is the tensioner tight fully extended or is it still pushed in some? Tensioners don't cost much, I would probably go pick up another one or swap the other to that side temporarily and see if the chain tightened. As far as the cam lobes, someone will probably chime in but I have definitely seen worse. How are the lash adjusters and followers? When I did my kit, I changed those out as well, found out I had 13 bad lash adjusters, they were either bled down all the way or stuck in a full out position. Changed it all and no problems in about the last 10-12000 miles.
