Lost the upper tensioner spring for 2000

[cktrap]

damn you guy's are making my head hurt!! It's great info, but I'm glad I don't have to do all that math

[spl310]

With a 1600, you can skip the advanced calculus....

[nats226ny]

Thanks Lee for the correction............."last time I use you as a reference Dave." My spring measurement stand on there own.

Gary

[dbrick]

With a 1600, you can skip the advanced calculus....

And get a tensioner for a TR7?

[cktrap]

you might want to ckeck this out
http://cgi.ebay.com/ebaymotors/datsun-r ... ccessories" onclick="window.open(this.href);return false;

[sfdaugherty]

I received my spring assortment today. The closest fit is .42" diameter, .047 wire diameter (23.3 inch pounds), but only 2" long. It fits perfectly but is 7/8" shorter than the original. It seems to have adequate pressure when the about 1/2" of the "piston" is out from the body of the tensioner (which is where a wear line in the backing plate indicates the tensioner foot has spent most of it's time.

I would be more comfortable with a 2 1/2" spring or even a 3" but haven't found one yet.

Shannon

[dbrick]

You should be able to stretch the spring a bit and not affect the tension.

[sfdaugherty]

A couple of guys on the forum offered me springs and one is on it's way. You guys are the best.

I was too impatient to wait for the stock replacement so I used my aftermarket spring and put in one washer as a shim (two wouldn't fit). I fired it up after sitting for a week plus and, lo and behold, no rattle. I'll take it to work this week just to see if it's really fixed.

Thanks to everyone for the tips.

Shannon

[dbrick]

Great to hear it worked. I'm also glad the discussion came up and I found out my math was wrong, so I'll recheck mine.

[Lee2000]

Dave,
Don't forget that the pressure the tensioner "sees" is at the very end of the line, so even if you have a super strong oil pump(higher than the 63psi stock relief spring setting), and considering the chain feed hole, I doubt you'll have more than 20 to 30 psi in the tensioner. Now you can use your "new" math skills to help you make a spring adjustment....

[dbrick]

There's also the distinct possibility that the oil tube fixed the noise and I was just deluding myself as to the spring working...

[Lee2000]

We all want to know...are you generally delusional?...

[nats226ny]

Uhh, you might not want to answer that one Dave.

[dbrick]

We all want to know...are you generally delusional?...

Well, that's like asking someone if they're lying, the answer is always "no". Of course I'm not delusional.

[spl310]

We all want to know...are you generally delusional?...

Well, that's like asking someone if they're lying, the answer is always "no". Of course I'm not delusional.

Even a paranoid is right sometimes, eh?