Idle Speed??

1980-1986 Datsun 720 forums. All 720-specific topics and discussion can be found here.
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alientravler
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Hey Guys and Gals!! What is the "normal" idle range for a 1982 4x4 720??


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PEZi
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manual or auto?


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alientravler
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PEZi720 wrote:manual or auto?
manual

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PEZi
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i can't remember for sure what the stock setting is... its either 700 or 800 rpm

i personally prefer 800

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alientravler
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PEZi720 wrote:i can't remember for sure what the stock setting is... its either 700 or 800 rpm

i personally prefer 800
Thanks Man!! Im at a little over 900 and it seems to run better than when it was set lower. The clutch even seems to not be slipping!! I found out that the clutch was replaced about 5 years ago and about a month after that the truck sat until now. Im hoping that the more I run it the better it will get.

flinterman2000
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alientravler wrote:The clutch even seems to not be slipping!!
Did you check to see if you have the clutch dampener. if you do you should remove it. It only serves as an anti stall device by allowing the clutch to slip a little if its released too aggressively.

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turbojunker
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alientravler wrote:
Thanks Man!! Im at a little over 900 and it seems to run better than when it was set lower. The clutch even seems to not be slipping!! I found out that the clutch was replaced about 5 years ago and about a month after that the truck sat until now. Im hoping that the more I run it the better it will get.
Your idle mixture could be off. My 510 likes to be idled up around 1000 or it loads up and idles rough.

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alientravler
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flinterman2000 wrote:
Did you check to see if you have the clutch dampener. if you do you should remove it. It only serves as an anti stall device by allowing the clutch to slip a little if its released too aggressively.
What does it look like?? I'll remove it at once as soon as Im sure what it is! PLEASE guys!! Anyone with a photo or diaigram of the culprit ???
Modified by alientravler at 2:59 PM 1/21/2010

Aven
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I wish I had a scanner.

My Haynes book shows it being located attached to the firewall. The base is square. The cylinder itself kind reminds me of a hot glue gun, the way its shaped. Going with that, it would be like the side of the glue gun was attached to a cylinder. It has two lines coming off it on the top side at about 25* to each other and a bleeder screw below it. So, one hose where the glue goes in, one where the handle would be and the bleeder screw where the glue comes out. Dang, I hope that makes sense.


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PEZi
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OH! you need a pic... lol. sorry man, sometimes i miss a post here and there

here ya go

don't forget to bleed the system after removing it


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alientravler
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Aven wrote:I wish I had a scanner.

My Haynes book shows it being located attached to the firewall. The base is square. The cylinder itself kind reminds me of a hot glue gun, the way its shaped. Going with that, it would be like the side of the glue gun was attached to a cylinder. It has two lines coming off it on the top side at about 25* to each other and a bleeder screw below it. So, one hose where the glue goes in, one where the handle would be and the bleeder screw where the glue comes out. Dang, I hope that makes sense.
Thanks very much!! Im looking again in the AM...BTW I have a very dear friend who works in Federal Way!! Thank You for the awesome photos mr> Moderator!!

Aven
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You're welcome.

A picture is so much better.

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turbojunker
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alientravler wrote:
Thanks very much!! Im looking again in the AM...BTW I have a very dear friend who works in Federal Way!! Thank You for the awesome photos mr> Moderator!!
I have a feeling yours may look like mine. I just have the line going down to the slave cylinder (farthest right line).

Every time I look at a Nissan 720 I see more and more minor differences from my Datsun.


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PEZi
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pretty sure its not an actual datsun vs. nissan difference... you just don't have the part

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turbojunker
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PEZi720 wrote:pretty sure its not an actual datsun vs. nissan difference... you just don't have the part
Nah, there are lots of little things that aren't the same. You've got the obvious taillights, grille, marker lights, bumper, and instrument cluster. I've picked up some small things out of the yard (brackets, etc.) only to find out that they were different. I'm assuming it was just things being upgraded as the years progressed. For instance, I like the Nissan shifter better than that big honkin' chrome thing that I had.

flinterman2000
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PEZi720 wrote:pretty sure its not an actual datsun vs. nissan difference.
A lot of the differences came as upgrades going from datsun to nissan.

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PEZi
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i know there's a lot of differences in between the different years... but in the case of the clutch damper i feel some just had it and some didn't... but i could be wrong

dogred
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flinterman2000 wrote:
A lot of the differences came as upgrades going from datsun to nissan.
They are the same company, just regular upgrades like the continual improvement of Silverado's and F-150's.

moredunes720
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I think the damper thing on the clutch is mostly found in 4x4 and posssibly the st and upper end models models for more aggressive driving situations as pezi indicated...that's my best uneducated guess. Either way, it's a pain if you need to bleed the clutch lines for any reason.

flinterman2000
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moredunes720 wrote:I think the damper thing on the clutch is mostly found in 4x4 and posssibly the st and upper end models models for more aggressive driving situations as pezi indicated
I agree with the higher end models more likely to have them but the datsun came with a flatish black dampner as my brothers 80 KC had but the later 84 had the aluminum molded ones like pezi's


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