Ed

If your talking about a 1/4 inch (3mm) "tube". It's not really a tube. It's a U shaped rod. They are placed between the cylinders. They are either for alignment or cooling I don't really know. Your block is fine.:classic:

Behind which plug are you talking?

I agree:classic:

I'm getting ready to work on my diff and as I was looking at it I remembered that i've always had a problem with the fluids coming out of the vent. This is my second diff and i've always made certain to not overfill. Back when my car was running I would wash the diff every now and then with a high pressure hose to get the oil/crud off. Then after a couple of months it would be there again. I noticed on my Chevy truck there is a two foot hose attached to the diff that goes up with the vent cap at the end of the hose. Now I'm wondering do I just have a case of bad luck when it comes to my diff's leaking or is this a common problem? And what do you guys think about putting a piece of hose to the top of the diff?

While you have the head off inspect the cylinder walls. Look for scratches that could indicate a broken ring. Also unless you plan on removing the front engine cover make sure you properly secure the timing chain tensioner. Good luck.

I agree with you Stephen, If we can help then help I will. Silent, all radiators will eventually build up with crud. Even a well maintained engine if the cooling system isn't flushed yearly. It's all part of preventative maintanace. Now if you want to keep the original radiator then have it boiled out and rodded. This is where they take the radiator apart boil it to loosten up all the crud then they will run a metal rod through the passages to clear it. Alot of work but sometimes cheaper than a new one. Now I don't know about the 280zx having problems with overheating but if that is the case then I would suggest getting a larger capacity radiatior. This is usually refered to as "rows" 3 row vs. a 4 row the 4 row would be better. Now if you could get a 4 row radiator for your car I would think you would have any overheating issues solved. That is of coarse depending on the condition of the rest of the cooling system. Try Motorsports Auto they are in southern california and could get you a new radiator.

You've got my vote on that too.

Kats, your attention to detail is quite overwhelming. I'd love the opportunity to see your car some day. Good job!

You guys always have the cool stuff.:classic:

At 5.90 hr you should start with a good tune-up. Everything else would be some serious $. Headers 150 (ceramic coated? add 150) Exhaust 150 Cam 500 Ignition 100+ And these are just estimates, personally the L28 makes pretty good HP. Spend your money on fixing her up. Suspension, interior paint etc.. then when you get that pay raise you can start saving for some extra ponies. :classic:

Not sure, most places have some kind of minimum charge for the hour. But you figure after an hour of bending and stuff you will have a pretty nice fitting tube.

That Aluminized tubing is very common for exhaust systems. Go to any muffler shop and they should be able to bend you a custom tube.