Does anyone happen to know the size of the two o-rings on the oil filter stem? This is a 602 turbo.

I replaced them and have them in my tool box, but I do not have my tool box with me. I can let you know tomorrow, if I remember, if no one else comes through.

I thought they were the same as the 617, 6mm I'd x 10mm od, and 7mm x 11mm

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John HAUL AWAY, OR CRUSHED CARS!!! HELP ME keep the cars out of the crusher! A/C Thread
"as I ride with my a/c on... I have fond memories of sweaty oily saturdays and spewing R12 into the air. THANKS for all you do!

My drivers:
1987 190D 2.5Turbo
1987 190D 2.5Turbo
1987 190D 2.5-5SPEED!!!

1987 300TD
1987 300TD
1994GMC 2500 6.5Turbo truck... I had to put the ladder somewhere!

I believe you are correct. I used the same o-rings I used in my 616 in the 602.

On my 617-952 the o rings are 6&7mm

Thanks for the answer.

Not according to the EPC.

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When cryptography is outlawed, bayl bhgynjf jvyy unir cevinpl.

I replaced those on a 617 with some found in the Harbor Freight metric kit. They filled the slot and seemed snug installing the stem. Oil pressure registers quickly.

What would confirm that the o-rings are in fact working correctly?

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85SD 240K & stopped counting painted, putting bac together. 84SD 180,000. sold to a neighbor and member here but I forget his handle. The 84 is much improved from when I had it. 85TD beginning to repair to DD status. Lots of stuff to do.

If they are pliable, they're good.

If they are hard as a rock, replace 'em.

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83 SD

84 CD

epc also claims the correct alternator belt size for the 83 SD is 9.5mmx1000mm qty 2... and we all know that the 9.5 will slip, you need true 10mm continental belts for a long lasting fit...

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John HAUL AWAY, OR CRUSHED CARS!!! HELP ME keep the cars out of the crusher! A/C Thread
"as I ride with my a/c on... I have fond memories of sweaty oily saturdays and spewing R12 into the air. THANKS for all you do!

My drivers:
1987 190D 2.5Turbo
1987 190D 2.5Turbo
1987 190D 2.5-5SPEED!!!

1987 300TD
1987 300TD
1994GMC 2500 6.5Turbo truck... I had to put the ladder somewhere!

I Just change them every couple oil changes regardless. You can get them at napa for less than a dollar. Keeps your oil pressure up and insures no rubber bits in your galleries.

According to EPC, my '87 190DT has the same oil filter cover as the '87 300D. That's wrong, too.

Fact is, "we all" do not know that, believe that or support that position. You are free to believe it if you like, but speaking for everyone in order to justify your position isn't very convincing. Maybe wider belts work better on worn pulleys, but that doesn't mean the EPC is in error.

In any case, anyone who desires to ignore the EPC and operate on the basis of rumors and hearsay has come to the right place.

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When cryptography is outlawed, bayl bhgynjf jvyy unir cevinpl.