Binky has ze issues
12-29-2006, 10:28 PM
#1
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Location: Sydney, Australia
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Binky has ze issues
Hey people,
I've been having some ongoing issues with the zed (1975 260Z with twin SU HS-6 setup) and cant seem to pin this down.
Car will idle very nicely at around 800rpm but will have stuff all power until under load at 1500-2000 and may even backfire once.
first thing I have done is check out the performance of the carbs, at the moment the rear carb is acting lean (spluttering and failing engine when piston lifted) but exhaust smells rich.
I have...
Cleaned the filter in the vacuum pot
Changed all the fuel and vacuum hoses
Changed the fuel filter (and thrown out the crappy little one in the pump)
Checked vacuum pump
Sworn, cursed and threatened
What am i missing...Certainly seems like a vacuum problem to me
I've been having some ongoing issues with the zed (1975 260Z with twin SU HS-6 setup) and cant seem to pin this down.
Car will idle very nicely at around 800rpm but will have stuff all power until under load at 1500-2000 and may even backfire once.
first thing I have done is check out the performance of the carbs, at the moment the rear carb is acting lean (spluttering and failing engine when piston lifted) but exhaust smells rich.
I have...
Cleaned the filter in the vacuum pot
Changed all the fuel and vacuum hoses
Changed the fuel filter (and thrown out the crappy little one in the pump)
Checked vacuum pump
Sworn, cursed and threatened
What am i missing...Certainly seems like a vacuum problem to me
I did notice some piston slop in the back one.
12-29-2006, 11:16 PM
#5
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Join Date: Sep 2005
Location: lemont, Illinois
Posts: 9,532
why are you excieted aboot that? lol. should be a learnin experience. luckly you can remove carbs on these cars easy as hell... dont know how the rebuild goes but hte kits are cheap... so shouldnt be to bad.
12-29-2006, 11:19 PM
#6
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Join Date: Jul 2003
Location: Salinas, CA
Posts: 3,074
Originally Posted by snwbrderphat540
why are you excieted aboot that? lol. should be a learnin experience. luckly you can remove carbs on these cars easy as hell... dont know how the rebuild goes but hte kits are cheap... so shouldnt be to bad.
12-29-2006, 11:59 PM
#8
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Join Date: Sep 2006
Location: Sydney, Australia
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Originally Posted by snwbrderphat540
you lol. im just kidding.. but you are excited ehem if i may
quote " REBUILD TIME!!!!!" thats excited right there
quote " REBUILD TIME!!!!!" thats excited right there
I have been meaning to get to my local SU guru for a tour around his shop etc. I think I will do that this week and ask his opinion...probably rebuild time
Anyway the elec dist will arrive this week so that will help too.
Im going to get rid of that horrible hose to the top of the valve cover and put a breather filter on it...Where the hell does that go?
12-30-2006, 12:23 AM
#9
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Join Date: Jul 2003
Location: Salinas, CA
Posts: 3,074
Originally Posted by Coolie
Hes got a point there...that was a little excited.
I have been meaning to get to my local SU guru for a tour around his shop etc. I think I will do that this week and ask his opinion...probably rebuild time
Anyway the elec dist will arrive this week so that will help too.
Im going to get rid of that horrible hose to the top of the valve cover and put a breather filter on it...Where the hell does that go?
I have been meaning to get to my local SU guru for a tour around his shop etc. I think I will do that this week and ask his opinion...probably rebuild time
Anyway the elec dist will arrive this week so that will help too.
Im going to get rid of that horrible hose to the top of the valve cover and put a breather filter on it...Where the hell does that go?
01-01-2007, 09:05 PM
#12
Über User
Join Date: Sep 2005
Location: lemont, Illinois
Posts: 9,532
what are you talking aboot? i have 260 only 20 ft away from me but im not sure what your takling about. you mean the nipple on the valve cover you plug to the intake or can put an oil breather on or what?
01-01-2007, 10:10 PM
#14
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Join Date: Sep 2005
Location: lemont, Illinois
Posts: 9,532
hmm.. i have no clue what size it is.. lol.. if i had to guess id go with a 1/4 inch maybe a 1/2..... i dotn really want to measuer.... dont you ahve yours? or did you like want to stop on your way homeor soemthing.. im confused
01-02-2007, 02:20 AM
#15
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Join Date: Sep 2006
Location: Sydney, Australia
Posts: 504
Yeah I stopped at the auto shop on the way home but thats ok, Ill get one another time. The main issue that I had was when I went to use the crank pulley nut to turn the engine...ITS LOOSE! its supposed to have 100ft/lbs!
01-02-2007, 09:46 AM
#16
Queen of Yachts
Join Date: May 2006
Location: warmspott, trollville.......somewhere sailing the seas--fla, virgin islands...wherever....warm water....LOL
Posts: 2,957
gee--coollie----i hope that fixes it-----but, ya know--that little noise i heard was not really so excited-----:
E X C I T E D
that's excited........i hope yiou do not have to rebuild anything now........and give Binky a pat from me, ok??.........
E X C I T E D
that's excited........i hope yiou do not have to rebuild anything now........and give Binky a pat from me, ok??.........
Last edited by z-hag; 01-02-2007 at 09:49 AM.
01-02-2007, 01:36 PM
#17
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Join Date: Sep 2006
Location: Sydney, Australia
Posts: 504
The pulley was still on tight but man its scary...I dont have a socket that big, gotta go to the hardware place and get a 1/2 inch set.
Having nightmares about pulleys and belts flying everywhere.
Having nightmares about pulleys and belts flying everywhere.
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