Issue with Tech Article (fuel filters)
Cargo Master
Joined: Jun 2003
Posts: 2,203
Likes: 0
From: Carlsbad, California
Before heading off to work this morning I put a caliper on the oil filter cap.
It measured 1.4125 inches which is 35.877 mm, about 5 thousands of an inch less than 36 mm.
I didn't have time, nor was I dressed right, to really crawl under the truck and do a good job of measuring the fuel filter cap, but my quick half hearted attempt yielded a reading of 1.405 inches with the caliper.
That works out to 35.687 mm or about 12 thousands of an inch less than 36 mm.
A 1 3/8 inch nut would work out to 1.375 inches or 34.925 mm. This would be 42 thousands of an inch less than 36 mm.
I don't have a 1 3/8 socket to try on the filter but I'm guessing that it would not work on my truck - an early '03.
It measured 1.4125 inches which is 35.877 mm, about 5 thousands of an inch less than 36 mm.
I didn't have time, nor was I dressed right, to really crawl under the truck and do a good job of measuring the fuel filter cap, but my quick half hearted attempt yielded a reading of 1.405 inches with the caliper.
That works out to 35.687 mm or about 12 thousands of an inch less than 36 mm.
A 1 3/8 inch nut would work out to 1.375 inches or 34.925 mm. This would be 42 thousands of an inch less than 36 mm.
I don't have a 1 3/8 socket to try on the filter but I'm guessing that it would not work on my truck - an early '03.
Posting Guru
Joined: Aug 2004
Posts: 1,011
Likes: 0
AFAIK the caps on the HFCM and the oil filter housing are the exact same cap. They don't just take the same sized socket, they *are* the same cap.
My 36mm socket fits perfectly on my early '03, and I can't imagine why they'd change to inch-based sizes... if they were even going to change, which seems unlikely.
Duncan
My 36mm socket fits perfectly on my early '03, and I can't imagine why they'd change to inch-based sizes... if they were even going to change, which seems unlikely.
Duncan
