Originally Posted by rgleason
For a 3ym30 engine I need to know the proper tension for a 3/8" gates belt with an old balmar
I read 1/32" x inches between pulleys with a 25 lb force. Is that correct?
I also need to know the proper tension for a J10 belt on the same engine, different alternator
, delco remy 28SI.
I have the proper kricket measuring device, but do not know what yammer spec for 3ym30 serpentine belt tension is.
Thanks very much.
U have a belt tension gauge? Not 1/32, that’s impossible ( and potentially damaging to bearings.)without a tension screw. 1/3 “ deflection if retentioning used belt. Tad less defection w/ new belt 1/4” . Give it a good push between upper pulleys,
I use a smaller pry for leverage and it takes a good pull to get the belt that taunght.
Don’t know the serp belt tension spec, however, same theory applies, very snug, not so much you cant twist the belt at its longest run.