3.7 timing chain tensioner word of caution - JeepForum.com
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post #1 of 1 Old 09-23-2013, 01:14 PM Thread Starter
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1982 FSJ Cherokee 
Join Date: Sep 2012
Location: mesa
Posts: 1,255
3.7 timing chain tensioner word of caution

You may have followed along on my 'number 2' intake seat drop. I got lucky and there was no damage to the head/piston. Engine guy replaced all three intake seats and the #2 valve.

As you know, removing the head requires removal of the cam sprocket and a 'reset' of the timing chain tensioner.

I followed the instructions in the manual. Installed it and pulled the pin. What I didn't noticed is when it snapped into position the small arm with the ratchets slipped off the end of the piston.

Got it all put back together and a noise from that side. Sounded similar to when the tensioner had originally gone bad, just not as 'bad'.

Pulled the timing cover off and saw what the problem was. Reset it again and pulled the pin. This time it worked and the noise is gone.

So word of caution, make sure it sets correctly when you pull the pin. It will save you a LOT of extra work.

82 Cherokee WT - SOA/SF/agr box/Borgeson ujoint steering shaft/401/performer/holley TA/HEI/BeCool/727/np208/d44(aussie)/amc20(ARB)/BFG 35X12.5/Corbeau Moab Seats/RCI 6point Harness,Hella Aux lights/tuffy console/killer32 slider bars/custom bumpers and roll bar/Alpine head unit/amps/speakers 2002 Liberty Limited Early edition - Basically stock
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