Alternator turnbuckle

    I run a single belt with a 120-amp alternator but rarely have it set to output more than 100 amps. A simple turnbuckle from Lowes solved the problem of alternator tension.  Note that installation requires some shims and washers to get the geometry right.  A turnbuckle identical to this one went 3500 to 4000 hours on my Perkins 4-108 with no problems.  That one used a cotter key through a hole drilled in the turnbuckle body vice a cable tie to keep the turnbuckle from turning.

    Watch out for over tensioning…