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10-12-2013
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#1 |
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Join Date: Dec 2012
Location: NC
Posts: 1,783
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TOP END REFINISHING
2nd ed.:
DEFINITELY read Cliff's - user <Dynomite> - links when he links them. They're not always directly to the pertinent information about what you're on at some point in repair - you'll have to read it ALL to get to the info, but it's ALL there, and you HAVE to go through it. (Thanks a ton for that stuff Cliff). Use your bookmarks tool in your browser for the info when you hit it, and note that sometimes you'll run across info that's IMPORTANT at a LATER point... edit: This is continued from the DataMaster thread, for 'hesitation' diagnosis http://www.zr1.net/forum/showthread.php?t=21259 ------------------------------------------------------------------------- Next in the 'Hesitation' troubleshoot is spark plugs and wires check. Meaning access to the distributor to yank the wires. This is about to become a Plenum Pull. ed.: This is now a plenum pull thread. Link to the best procedure / tips / tricks? Last edited by Schrade; 12-15-2013 at 10:20 AM. |
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10-12-2013
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#2 |
 Join Date: May 2013
Location: Beaver, PA
Posts: 515
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Re: Throttle hesitation diagnostics?
I guess if you are going under there it might be wise to check all vac lines, check valves and mechanical/electrical connections too.
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10-12-2013
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#3 | |
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Join Date: May 2007
Location: Chicagoland, IL
Posts: 9,686
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Re: Throttle hesitation diagnostics?
Quote:
There is no distributor. You mean the DIS and ignition coil housing. The biggest PITA for me are the 2 Ignition Module connectors up under the plenum. Other than that it's about a 15-20 min job IF you don't need to drain the coolant. That TB looks like it hasn't been off for some time. Any obvious signs of torn gasket or vacuum leaks. Last edited by XfireZ51; 10-12-2013 at 06:03 PM. |
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10-12-2013
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#4 |
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Join Date: Dec 2012
Location: NC
Posts: 1,783
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Re: Throttle hesitation diagnostics?
11 bolts out - she's loose. Something holding it from underneath?
and all the surrounding plumbing unhooked and tagged... ??? |
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10-12-2013
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#5 | |
  
Join Date: Aug 2009
Location: South Dakota/California
Posts: 3,816
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Re: Throttle hesitation diagnostics?
Great Photos....thanks....
 Quote:
__________________
Clickable links On Iphone Touchable Links -Solutions- LT5 Modifications/Rebuild Tricks Low Mileage ZR-1 Restoration 1990 Corvette (L98) Modifications LT5 Eliminated Systems LT5 Added Systems LT5/ZR-1 Fluids 1995 LT5 SPECIFIC TOP END REBUILD TRICKS |
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10-12-2013
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#6 | |
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Join Date: Aug 2009
Location: South Dakota/California
Posts: 3,816
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Re: Throttle hesitation diagnostics?
Quote:
 See Removing Plenum (including the 10 minute Plenum Removal) 15. Disconnect two small electrical connectors rear under Plenum (MAP and DIS). 16. Unscrew 1/4 bolt in Main DIS Connector rear of Plenum. |
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10-13-2013
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#7 |
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Join Date: May 2007
Location: Chicagoland, IL
Posts: 9,686
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Re: Throttle hesitation diagnostics?
That the cam sensor plug. Feel underneath, should be a tang to unlock it. Be careful tho not to break the tang. Pull down and push back plug at the same time. You also unbolted the DIS connector right?
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10-13-2013
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#8 |
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Join Date: Dec 2012
Location: NC
Posts: 1,783
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Re: Throttle hesitation diagnostics?
Drum roll...
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10-13-2013
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#9 |
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Join Date: Dec 2012
Location: NC
Posts: 1,783
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Re: Throttle hesitation diagnostics?
... and now this message from our sponsor.
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10-13-2013
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#10 |
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Join Date: Dec 2012
Location: NC
Posts: 1,783
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Re: Throttle hesitation diagnostics?
This is regular heat sink paste? For mounting CPU heatsinks???
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Linear Mode
