Frame rust question?

[Azrial]

Since I am rather new to 240sx ownership. I was wondering if most of them rust on the frame rails on the driver side right underneath the floor. I have a convertible it has a minor spot on it. I am in the process of trading for a hatchback shell. I had some rims sitting in the shed for a few years. The hatch has a bad auto transmission. Then engine and transmission are out of it now. My buddy said he would weld up the frame rails on it for the trade. I just wondered if it's a really common spot and/or why. Do the frames hold water there? Does it get splashed on more? Water drain that way?

[numbnuts240]

don't really have an answer as to why they tend to rust there, but yes, that is one of the more common spots to find rust.

[S13_love]

There's a reason why it rusts on the driver side more easily.

1) Probably has to do something with the exhaust being on that side

-and-

2) When you're driving, guess what's on your driver side? Traffic! So yeah, I guess in a way, it will get splashed more.

[Azrial]

That does make sense the getting splashed more then the heat from the exhaust. I never even thought about the heat from exhaust.

[blacksrjdm]

It is because of the exhaust heat and not because of excess splashing on that side. Thats a funny way to think about it though. LOL

[Azrial]

It makes sense. Excess heat does funny things to metal. I work at a steel mill. In a Coke Plant. You should see the rust we get there from ovens being 2300 degrees. It takes no time at all and everything starts to rust away.

[OutToWinPAHC]

Heat is the cause, but you will also notice 93-94 models don't rust as much.... The frame rails were then being coated with an inhibitor at this point.