UIM bolts backing out on L36
#1
Senior Member
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UIM bolts backing out on L36
I replaced the LIM and UIM on a 1998 L36 about a year ago. Now it seems to be loosing a litle bit of antifreeze again. When I checked the UIM bolts I found that they were loose. I am quite ceratin that I torqued them to 89 inch pounds when I installed them a year ago. Now they need to be turned 1/2 to 1 1/2 turn to get them to 89 inch pounds. Was I supposed use locktite or thread sealant on these bolts?
#3
DINOSAURUS BOOSTUS
Expert Gearhead
UIM bolts don't go into coolant ports. The FSM doesn't suggest any locktite. And at 89 inch lbs.. that'* the right torque. Maybe a touch of locktite. They are small bolts.
#4
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Thanks! I will pull the fuel rail and put a dab of medium loctite on each bolt and retorque. I thought I read somewhwere that you should recheck the torque after a week or so. I can't imagine a mechanic telling you to bring it back in a week so he can remove the fuel rail and retorque the UIM.
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ruby76
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06-19-2009 10:45 AM