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#1 |
![]() Join Date: Jul 2009
Location: Texas
Posts: 793
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Okay I have finally gotten back in the states and have some time. I am going to pull my Plenum on my 91 Z this weekend so I can rebuild my starter. Is there anything else I need to attend to While I'm in there. All advice and links are welcome about anything My car has 88,000 miles on it.
Dave |
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#2 |
![]() Join Date: Dec 2003
Location: New Hampshire
Posts: 421
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Look for brittle vacuum hoses, lose connections, oil and dirt in the valley. Check the drain hole is clear.
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ZR-1 Mom Founder ZR-1 Net Registry Founder ZR-1 Net NCM Lifetime Member |
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#3 | |
![]() ![]() Join Date: Aug 2009
Location: South Dakota/California
Posts: 3,796
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![]() Quote:
![]() Compressed Air works great from below on the valley drain tube just to the rear of the oil pan on passenger side. Now........get ready for some fun ![]() Oh......drain some coolant first so when you remove the plenum the Throttle Body (TB) coolant is not getting into the Injector Housing. Or....here we go..... ![]() Block the TB coolant when you are there ![]() LT5 Eliminated Systems
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Left Clickable 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 Last edited by Dynomite; 02-25-2013 at 11:53 PM. |
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#4 |
![]() Join Date: Jan 2012
Location: New Jersey
Posts: 308
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check the crankcase breather hoses and especially the clamps mine were loose and letting oil leak out of them, also the vent cover bolts,gasket,etc,etc.
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#5 |
![]() Join Date: Mar 2007
Location: Crystal Lake, IL
Posts: 7,194
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remove that pesky additional aluminum from the runners if you have not already
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LGAFF 90 #966-150K miles-sold 92 #234-sold 1987 Callaway TT #17 1991 ZR-1 #1359 |
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#6 |
![]() Join Date: Jul 2009
Location: Texas
Posts: 793
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How much coolant should I drain for a upper plenum pull??
Dave |
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#7 |
![]() Join Date: Jul 2009
Location: Texas
Posts: 793
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I removed one and a eighth gallons by tapping into the line that goes to the radiator from the coolant resevior like is depicted below is this sufficient for a upper plenum pull?
Dave |
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#8 | |
![]() ![]() Join Date: Aug 2009
Location: South Dakota/California
Posts: 3,796
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![]() Quote:
![]() PLENUM Plenum pull TIPS Plenum Removal Simplified TIPS LT5 IH, Fuel Rails, Plenum Install Tricks Plenum pull questons Plenum pull tools and parts Plenum pull parts Under the plenum Plenum bolts install Porting Plenum & Cam cover restored pictures Plenum gasket drawing Ebay ZR1 LT5 Plenum
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Left Clickable 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 Last edited by Dynomite; 02-27-2013 at 12:52 AM. |
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#9 |
![]() Join Date: Jul 2009
Location: Texas
Posts: 793
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Here is a link to what I have done so far
http://www.facebook.com/media/set/?s...1&l=bf12a0aa41 it looks like my a/c compressor is leaking and its a little oily on the vent box and looks like some one did a little mild porting in the past, what do you all think any observations or suggestions?? Last edited by mgbrv8; 02-27-2013 at 02:03 PM. |
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#10 |
![]() Join Date: Mar 2007
Location: Crystal Lake, IL
Posts: 7,194
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If you are referring to the cresent shaped cuts in the IH to head surface that is factory matching, not porting done later.
PORT IT!!!
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LGAFF 90 #966-150K miles-sold 92 #234-sold 1987 Callaway TT #17 1991 ZR-1 #1359 |
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