very true also i find that the copper washers are only good for one time nip up only as being soft they do there job once 2nd time you will find they weep and if you over tighten you will strip a thread unless you heat the washer up but would rarher use a new copper washer as pennys dont know what pressure that oil cooler is under but know its got some !!!
dont know what pressure that oil cooler is under but know its got some !!!
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