Carrera engine oil drain plug washers

adias · 10-15-2019, 03:24 PM

My car has an aluminum washer drain plug in the crankcase plug and a copper washer in the oil sump. Both are 22x27x1.5mm. Pelican only carries Al washers. What do the experts recommend?

darrin · 10-15-2019, 04:08 PM

I've used aluminum for both for a while w/o issue -- change my oil out annually, and haven't seen any issue using an aluminum one on oil tank.

adias · 10-15-2019, 04:11 PM

I found Copper 22x27x1.5mm (cheap) HERE.

jkuntze · jkuntze's Garage

can get both cheap at mcmaster carr

yelcab1 · 10-15-2019, 05:41 PM

They are interchangeable.

adias · 10-15-2019, 05:45 PM

Quote:

Originally Posted by yelcab1

They are interchangeable.

They may be, but originally the crankcase washer was Al and the sump was Cu. Thee must be a reason, either electrolysis or torque value.

walt · walt's Garage

I've used both over the years, never an issue with either.

yelcab1 · 10-16-2019, 05:41 AM

You cannot get electrolytic catalyst reaction with a washer immersed in oil. I have used copper against aluminum, and steel for years and nothing has ever gone bad.

proporsche · proporsche's Garage

i have always used only alu seals..both option numbers are for alu washers no copper listed anywhere i can see in PET..
Ivan

ps .but copper works as well as alu..

dicklague · dicklague's Garage

Quote:

Originally Posted by adias

They may be, but originally the crankcase washer was Al and the sump was Cu. Thee must be a reason, either electrolysis or torque value.

HUH?? Common sense says that either will work.

RWebb · RWebb's Garage

Common sense would inhibit a lengthy anal-retentive technological debate.

If any Common sense is to be used here, then let's hold off until this thread is several pages long.

theiceman · 10-16-2019, 11:17 AM

...lol .. this actually got a thread ... hahahaha . you guys have officially run out of things to debate..

proporsche · proporsche's Garage

theiceman..there is no hockey on TV;-)

Locker537 · 10-16-2019, 02:12 PM

I like these threads, because inevitably someone will chime in with something useful.

For example, shopping mcmaster carr for these washers! Obvious in retrospect!

adias · 10-16-2019, 03:34 PM

It may not make a difference and I am sorry to have ruffled feathers

but the PET part numbers are different:

Sump washer - 900 123 011 20. It was always copper in my car when supplied by PAG.

Crankcase washer - 900 123 118 30. Aluminum.

It may not make a difference, but those were the OEM specs.