2000 379, my engine bolts absolutely will not stay tight!!! Any suggestions? Thanks in advance
Loose bolts
Discussion in 'Trucks [ Eighteen Wheelers ]' started by hell cat, Apr 26, 2017.
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Might be time for a new Damper.
magoo68 Thanks this. -
What is that?
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It's the rear engine support bolts that keep loosening
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DDlighttruck and SAR Thank this.
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Okay I'll try new bolts, think I should shorten them a bit? Due to wear???
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Like super said. New bolts and washers and cover with red locktight. Install and tighten them as tight as you can get them. If they still come loose then yes you could have other issues. Honestly i dont think they will back off again after doing this thou.
SAR Thanks this. -
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use new bolts the same length and locktite.
Be careful tightening too tight and stripping out the threaded hole
that bolt is going into - if it is Aluminum.
Absolutly needs a new washer and lockwasher also.
Aircraft trick is to crossdrill 1/8" hole in heads of bolts and safety wire them. -
I would use new bolts, washers and Loctite and find out what Paccar recommends the bolts should be torqued to with a torque wrench, as if they are properly torqued they shouldn't come loose.
Last edited: Apr 26, 2017
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