Drain Plug Gaskets

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just a dilitante with 40+ years of mostly DIY. I have seen
all work fine. I am a fan, without much justification, of
copper/aluminum crush washers.
 
Originally Posted By: dwendt44
Agreed, nylon can easily crack if overtightened.

Not only that, my experience with Nylon is that it will melt and "super glue" itself to the drain pan.
 
Originally Posted By: The Critic
Originally Posted By: dwendt44
Agreed, nylon can easily crack if overtightened.

Not only that, my experience with Nylon is that it will melt and "super glue" itself to the drain pan.


That probably wasn't nylon.....so what was the polymer?

I used the same a blackish unknown composite/polymer plug gasket for 17+ years on my old Toyota p.u. - admittedly sometimes I only changed the oil every 2 years, but that sucker worked fine. I bought it at Shuck's as I recall.
 
Originally Posted By: Pablo
Originally Posted By: The Critic
Originally Posted By: dwendt44
Agreed, nylon can easily crack if overtightened.

Not only that, my experience with Nylon is that it will melt and "super glue" itself to the drain pan.


That probably wasn't nylon.....so what was the polymer?

I used the same a blackish unknown composite/polymer plug gasket for 17+ years on my old Toyota p.u. - admittedly sometimes I only changed the oil every 2 years, but that sucker worked fine. I bought it at Shuck's as I recall.

I'm not at home, but I think the roll said something along the lines of "high temperature gasket material." It definitely wasn't "high temperature" if it melted and stuck to the drain pan when I remove the drain plug.
 
Because I had a polymer one melt - I avoid those as those and use the gm originial on GM and alu or copper on Mazda and Toyota.
 
Originally Posted By: byez
pros and cons please? copper/aluminum/crush type/nylon?


Generally to be on the safe side, use whatever was OEM:

http://www.cgenterprises.com/gaskets.htm

However, if there is such a thing as a generic, it's nylon.

In most applications it will provide a seal without excessive torque, maintain a seal, and in a pinch be reused.
 
SumpPlugCrushWasher.jpg


Is this a crush washer? It does not crush, only indents.
 
Originally Posted By: Jonny Z

Is this a crush washer? It does not crush, only indents.


It appears to be a fiber washer.

Crush washers are metallic and typically literally "crush" when they are tightened.
 
Looks metallic, kind of like what I'm used to seeing in the aluminum style. The key in my opinion is to not over tighten. If you've got either the metal or nylon, you should be fine as long as you torque to spec. I'm a real believer in checking the book and using a torque wrench if you don't have the feel for a particular bolt or nut yet. Case in point is wheel lugs. The torque can vary by as much as 70 foot pounds from vehicle to vehicle.
Steve
 
Just noticed your 382k with the original engine and trans. Got any tips to help us get to 382 ?
 
FZ1
Thanks for the compliment. Mostly it's all about maintenance. Your engine has more than just oil that needs changing. Remember the rest, and do the oil changes on schedule. I like synthetic and have been using it for about the last 280k. FWIW I became a Amsoil dealer after studying oils. Mainly BITOG and to a lesser extent some other web sites convinced me that I needed to adopt synthetic and further, Amsoil has the best quality. Don't forget that the engine is also a 351 Windsor (5.8 liter), which I was told is the best design for the small block.
What's kind of got me surprised is the transmission. I really haven't done that much to it except change the fluid.
Steve
 
Just go to rockauto and buy 100 for like $12 and use it every oil change. It is a cheap insurance and should last you a lifetime. (3M miles if you have 3k OCI).
 
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