Oil filter

[Dieselpowerking]

Hey guys I'm new to this site. I work as diesel mechanic. But I was changing the oil in my 1990 f250 7.3 idi and are lube tech told me I need to tighten the filter down as tight as it can go because it leaked a little before. But I learned from my dad and college professer that you let the seal make contact then do 3/4 turn. It's always worked so why would my oil filter leak? It has the FL1995 oil filter on it right now.

 

[Thewespaul]

Just go hand tight, go looser than you think and if it leaks then tighten a quarter turn. Over time you’ll calibrate your elbow to the correct torque spec

 

[DrCharles]

Your lube tech may be from the school of "tighten it until it strips, then back off half a turn"... never tighten a spin-on filter as tight as you can!

It's possible that the o-ring on the old filter was defective or damaged; a little particle of dirt could have fell onto the seat; if it wasn't oiled before installation it could have torn a little; maybe it vibrated loose because it wasn't quite tight enough.

oh, and welcome to the forum

 

[Dieselpowerking]

Just go hand tight, go looser than you think and if it leaks then tighten a quarter turn. Over time you’ll calibrate your elbow to the correct torque spec

Thanks for the reply I'll keep this in mind when I have to change oil.

 

[icanfixall]

Welcome to the forum.Glad your using the larger 1995 that filters down to a finer micron than our standard 1 qt filter. My filter always leaks.I have had my oil cooler header off during an overhaul and used a fine double cut file to take out any high spots. nothing found either. No low places either.. Do you oil the rubber seal when installing the new filter?

 

[nostrokes]

A little leak after a few thousand miles isn't a big deal some seepage is normal, mine has streaks every change. Snug and a little more is plenty

 

[rwk]

go a little tighter, they are longer and heavier then most filters, truck vibrations may effect it more.

 

[Dieselpowerking]

Welcome to the forum.Glad your using the larger 1995 that filters down to a finer micron than our standard 1 qt filter. My filter always leaks.I have had my oil cooler header off during an overhaul and used a fine double cut file to take out any high spots. nothing found either. No low places either.. Do you oil the rubber seal when installing the new filter?

Yes I do and I always clean off the surface it goes on to.

 

[79jasper]

I can't recall who. Maybe towcat.
But someone recommended you tighten then back off just a hair.
Reason is tightening will somewhat try to roll the oring, then backing off helps put it back in place.

Sent from my SM-G892A using Tapatalk

 

[homelessduck]

I always tighten until the rubber seal makes contact , then tighten an extra 3/4 turn. I rarely have leaks but when I do another 1/4 turn does the trick.