Changed my oil today...

kannibul · 08-09-2009, 10:52 PM

and it didn't appear to have a crush washer

The bottom of the oil pan bolt has a ring to it (and the pan has paint missing from the same spot), but, I tried getting it off by hand (no tools, don't want to miss and screw the bolt up), and the ring wouldn't budge, so as far as I can tell, it's part of the bolt.

So, I used a crush washer (aluminum) like what I have to use on my bike.

No leaks...

For the oil filter - I used a Mobil1 M1-110 filter, which is a bit taller than the M1-108. I figure the extra surface area should flow better. (these correspond with the K&N HP-1010 and HP-1008 filters (1008 is recommended, 1010 is taller))

molamann · 08-09-2009, 10:55 PM

Yeah mine didn't have a washer on the drain plug either. I bought my Z in OKC so maybe a trend among OK dealers? :S

kannibul · 08-09-2009, 11:07 PM

Quote:

Originally Posted by molamann

Yeah mine didn't have a washer on the drain plug either. I bought my Z in OKC so maybe a trend among OK dealers? :S

Bought you Z on OKC, but you're in LA? How does that work

Was your bolt like what I described?

molamann · 08-10-2009, 01:39 AM

I was stationed out in Tinker AFB and bought my Z back in January when I was still in service. Got raped by sales tax twice for a total of $4500.

As for the bolt, it's exactly what you described.

kannibul · 08-10-2009, 08:43 AM

Quote:

Originally Posted by molamann

I was stationed out in Tinker AFB and bought my Z back in January when I was still in service. Got raped by sales tax twice for a total of $4500.

As for the bolt, it's exactly what you described.

That sucks about the tax - maybe you'll get double the tax deduction come next year...

Thanks for the confirmation on the bolt too

davidyan · 08-10-2009, 01:54 PM

They all have the crush washer unless the last person who did your change didnt put one on. Sometimes they almost seize on. You have to take it out with a very fine tipped flathead screwdriver.

kannibul · 08-10-2009, 03:16 PM

Quote:

Originally Posted by davidyan

They all have the crush washer unless the last person who did your change didnt put one on. Sometimes they almost seize on. You have to take it out with a very fine tipped flathead screwdriver.

So the bottom of the oil pan bolt is flat/smooth?

I'll check when I hit 3750 miles...I figure it'll be fine - there should be enough torque on the threads, and compression on everything to keep things tight enough to not leak any oil.

davidyan · 08-10-2009, 09:55 PM

Quote:

Originally Posted by kannibul

So the bottom of the oil pan bolt is flat/smooth?

I'll check when I hit 3750 miles...I figure it'll be fine - there should be enough torque on the threads, and compression on everything to keep things tight enough to not leak any oil.

Yes, it can be difficult to see the crush washer. You're right that it should be tight enough though assuming you used the right amount of torque. Once the washer is crushed (which it should be), it can almost seize on and will take some prying to get loose.

08-09-2009, 10:52 PM	#1 (permalink)
kannibul A True Z Fanatic Join Date: Jun 2009 Location: Jenks, OK Posts: 2,281 Drives: 370z Touring/Sport Rep Power: 267	Changed my oil today... and it didn't appear to have a crush washer The bottom of the oil pan bolt has a ring to it (and the pan has paint missing from the same spot), but, I tried getting it off by hand (no tools, don't want to miss and screw the bolt up), and the ring wouldn't budge, so as far as I can tell, it's part of the bolt. So, I used a crush washer (aluminum) like what I have to use on my bike. No leaks... For the oil filter - I used a Mobil1 M1-110 filter, which is a bit taller than the M1-108. I figure the extra surface area should flow better. (these correspond with the K&N HP-1010 and HP-1008 filters (1008 is recommended, 1010 is taller))

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08-09-2009, 10:55 PM	#2 (permalink)
molamann A True Z Fanatic Join Date: Jan 2009 Location: Los Angeles Posts: 1,666 Drives: 370Z with NAVVVVV Rep Power: 285	Yeah mine didn't have a washer on the drain plug either. I bought my Z in OKC so maybe a trend among OK dealers? :S

08-10-2009, 01:39 AM	#4 (permalink)
molamann A True Z Fanatic Join Date: Jan 2009 Location: Los Angeles Posts: 1,666 Drives: 370Z with NAVVVVV Rep Power: 285	I was stationed out in Tinker AFB and bought my Z back in January when I was still in service. Got raped by sales tax twice for a total of $4500. As for the bolt, it's exactly what you described.

08-10-2009, 01:54 PM	#6 (permalink)
davidyan Base Member Join Date: Jun 2009 Location: CA Posts: 244 Drives: PG 370Z Sport 6MT Rep Power: 16	They all have the crush washer unless the last person who did your change didnt put one on. Sometimes they almost seize on. You have to take it out with a very fine tipped flathead screwdriver.