SoCal General Chat

[E30 331is]

No reason to be replacing the drain plug. Washer should be done each time though.

What about oil pan bolts? Mine have rtv all over them and some are missing the wave washers.

[Chilezen]

What about oil pan bolts? Mine have rtv all over them and some are missing the wave washers.

Just clean the threads of the bolts with a wire brush or similar. Washers aren't hard to find.

[Chilezen]

Who here (besides Matt) is going to the picnic up in Washington?

[efficient]

Lol I was just asking because I went to bma to pick up my parts and this guy heard me asking for a oil drain crush washer and he says" why are you buying just the washer?"
I told him because I don't need a new oil plug bolt plus I bought a magnetic one awhile back ago. He then starts trying to put me on the spot saying that the bolt is going to stretch and it's cheap to buy a new one when another guy jumps in saying the same thing. By this time I was laughing inside because they were getting all excited for a oil pan drain bolt. I hate people that think they know everything.

[2mAn]

I am currently employed, if that changes in time I will go. Id rather have a job but the picnic is certainly something that should be done at least once

[ak-]

Lol I was just asking because I went to bma to pick up my parts and this guy heard me asking for a oil drain crush washer and he says" why are you buying just the washer?"
I told him because I don't need a new oil plug bolt plus I bought a magnetic one awhile back ago. He then starts trying to put me on the spot saying that the bolt is going to stretch and it's cheap to buy a new one when another guy jumps in saying the same thing. By this time I was laughing inside because they were getting all excited for a oil pan drain bolt. I hate people that think they know everything.

Stretch? Lol I can't imagine how hard someone has to torque it to stretch as they mentioned.. you're not suppose to tighten it that much anyways.

I don't like that kind of people either. Just have to be confident with them instead of hiding your face.

[XwalkerX]

i just picked up my car from washington. no plans on driving it back. however i will try and go to the picnic in san diego

[yert315]

The oil pan threads will strip before that bolt stretches. I hate when people spew nonsense

[Chilezen]

I am currently employed, if that changes in time I will go. Id rather have a job but the picnic is certainly something that should be done at least once

I am employed too and have requested the time off... however I'm second guessing going because I may not have the funds soon enough. I still want to go just because my dad lives up there, so to visit. Argh. I'm not asking anything, just deciding what to do, but the more time I waste, the less options will be available. In July I am spending a weekend in SF so maybe I'll extend that trip to see my dad... but miss the picnic/party. True, "at least once," so next year, possibly if not this.

[glnr13]

The oil pan threads will strip before that bolt stretches. I hate when people spew nonsense

There are a lot of those types that walk into BMA... I do my best to not talk to them.

[semaj4712]

90% of the time the bolts you need to worry about stretching are the same bolts ARP makes replacements for. ARP is not making oil pan bolts for a reason.

Not to mention:

Bolt stretching according Hook's Law can be expressed as

dl = F L / E A

where

dl = change in length of bolt (inches, mm)

F = applied tensile load (lb, kN)

L = effective length of bolt where tensile strength is applied (inches, mm)

E = Young's Modulus of Elasticity (psi, N/mm2)

A = tensile stress area of bolt (square inches, mm2)

Tensile stress area can be expressed as

A = 0.7854 (d - 0.9743 / n)^2

where

d = nominal diameter of bolt (inches, mm)

n = number of threads per inch (pitch)



So if you figure a bolt being m6x20 at 1 pitch you can figure this out

F = Typical Torque for an oilpan bolt = 10.5 N-m (10500 N-mm)
L = 20mm
E = Based on SAE 5 which I know is not correct but its close and its what I could easily find = 30psi (206842.7 N/mm^2)
d = 5mm
n = 25.4 threads per inch

dl = 10500(20) / 206842.7(.7854(5-.9743/25.4)^2)

dl = 210000 / 206842.7(.7854(5-.0384)^2)

dl = 210000 / 206842.7(.7854(4.961)^2)

dl = 210000 / 206842.7(.7854(24.618))

dl = 210000 / 206842.7(19.335)

dl = 210000 / 3999280.804

Change in Length (Stretch) = .053mm

So literally your talking .053mm of stretch, I am pretty sure thats why they make gaskets

[e34john]

Hope it wasn't one of you guys that got shot last night in San Diego

http://www.cbs8.com/story/29332453/driver-hospitalized-after-being-shot-on-i-5

[E30 331is]

How do I know which one I need for the AC Belt?

10 FAN BELT 12,5X810 1 06/1983 64521706826 $13.62
10 FAN BELT 12,5X823 1 06/1983 64551722990 $13.90

[ManSalad]

Complete shot in the dark but does anyone have a trailer that I can borrow/rent to bring home a shell? I'm located in Spring Valley and I just need to tow the car like 1 mile ,__,

[CENTURION]

U haul - it will rent you a tow trailer for cheap for that distance.