Oil Cooler

[My 90 oil burner]

So as the saga continues....
I went to reassemble my oil cooler this past weekend and noticed on the cap that the end of the housing has a crack in it right on the very edge where the tube goes in. Its on the back side of engine.
Is this something I need to worry about?

If I need to replace it does anyone have one thats used but not damaged?

 

[Thewespaul]

I wouldn’t use it if it’s cracked, I’ve got a bunch of coolers here

 

[MtnHaul]

Since servicing the oil cooler is kind of a PITA I wouldn't reassemble anything that didn't seem perfect.

 

[saburai]

Since servicing the oil cooler is kind of a PITA I wouldn't reassemble anything that didn't seem perfect.

+1 on that!

 

[genscripter]

A long time ago, I had on header that had a crack in it, so I archived it. No sense in using it because (best case) it'll just leak outside the block or (worst case) it'll leak oil and coolant together. I had a set of spare headers from ebay, so inspected and used them instead.

These headers will crack if someone doesn't install the o-rings properly. Lots of amateurs will press them in with force, putting a lot of strain on the oil cooler metal flanges clashing with the inner surfaces of the headers.

http://www.nickpisca.com/diesel/engine/6-9-and-7-3-idi-oil-cooler-repair/

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