01-21-2014 | #31 | ||
Join Date: Jul 2013
Location: Atlanta
Posts: 451
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Re: Daily driving a ZR-1
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I'm just glad to have the car in my brother's shop now. He does restorations, not normal mechanic work, but he's going to help me out and I am very grateful. He's a Corvette nut who loves the ZR-1, and says he's actually looking forward to it. I'm planning on a trip back down in the next few weeks and give him a hand. If anyone is in the Tallahassee area and wants to stop by, go for it. http://www.fastfineclassics.us/
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Mark '90 ZR-1 #1322 Daily Driver, 64k and counting Black/Gray [IMG]http://i208.photobucket.com/albums/bb49/mlitherland/IMG_0326_zps3d50d8cb.jpg[/IMG] |
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01-21-2014 | #32 |
Join Date: Apr 2004
Location: ATL. GA.
Posts: 2,170
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Re: Daily driving a ZR-1
Pardon, my ignorance here but how could you blow a head gasket and not get coolant in the oil? Could it possibly be an injector housing gasket?
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Steve 1990 Steel Blue/Black #2355 1990 Red/Red #1473 1991 Quasar /Black #118 Sold 1991 Turquoise/Black #766 Parted Out 1993 Yellow/White #179 Sold 1990 Black/Gray #1361 Headers/4:10s Sold |
01-21-2014 | #33 |
Join Date: Jul 2013
Location: Atlanta
Posts: 451
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Re: Daily driving a ZR-1
Hi Steve, just replied to your pm. I'm honestly not sure. Does the injector housing gasket actually block coolant, or is it a fuel/air gasket? I don't know enough about the LT5 design to say one way or another. I'll break out the WSM and take a look.
[edit] on the oil question, again I'm not familiar enough with the LT5 design. The only routes I know would be through the block oil passages, back into the head, or past the rings. The first two would be the result of a very big blowout in a very bad place. My only other experience with this type of failure had the same result - coolant gone, and nothing in the oil. It's going to take some post mortem to figure out what really happened.
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Mark '90 ZR-1 #1322 Daily Driver, 64k and counting Black/Gray [IMG]http://i208.photobucket.com/albums/bb49/mlitherland/IMG_0326_zps3d50d8cb.jpg[/IMG] Last edited by 8cam; 01-21-2014 at 01:59 PM. |
01-21-2014 | #34 |
Join Date: Jul 2005
Posts: 243
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Re: Daily driving a ZR-1
This is why I never let anyone drive my cars and why I don't drive anyone else's. I'm glad you have the car in capable hands for the repair and I hope you get it back quickly.
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Constantine Registry Founding Member #0235 1991 Corvette ZR-1 -- Stock, 94 ZR-1 exhaust system, muffler delete. 1956 Chevrolet Belair -- Pro Street, 531ci Cadillac, 8-71 Blower, 8pt roll bar, built TH-400, 9" rear, 1,100 HP -- Street Car. https://www.youtube.com/watch?v=z8y4cwcvK0s 1968 Mustang "Pegasus" -- Zeeker Chassis, 584ci Dart Block, Brodix Big Brodies, 2-1150 Dominators, FTI 'Glide, 1168 hp, best ET & Trap(holding back) 8.57@159 -- 7.9X -- 1/4 mile car. 1970 Chevelle -- 468ci, TKO600, shaved and smoothed everything. |
01-21-2014 | #35 |
Join Date: Apr 2004
Location: ATL. GA.
Posts: 2,170
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Re: Daily driving a ZR-1
Ok, was just looking at the pics on Marc H's site of blown head gaskets, it would have to be a major blowout to have also blown thru the outside also.
http://www.zr1specialist.com/HAT%20W...d%20gasket.htm
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Steve 1990 Steel Blue/Black #2355 1990 Red/Red #1473 1991 Quasar /Black #118 Sold 1991 Turquoise/Black #766 Parted Out 1993 Yellow/White #179 Sold 1990 Black/Gray #1361 Headers/4:10s Sold Last edited by We Gone; 01-21-2014 at 02:35 PM. |
01-21-2014 | #36 |
Join Date: Jul 2013
Location: Atlanta
Posts: 451
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Re: Daily driving a ZR-1
Hmmm, then I wonder why there was a big puddle of coolant on the floor...would the injector housing gasket do that? I'll know more soon. Steve (my brother) is going to a compression check in the next couple days, and then start looking a little deeper.
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Mark '90 ZR-1 #1322 Daily Driver, 64k and counting Black/Gray [IMG]http://i208.photobucket.com/albums/bb49/mlitherland/IMG_0326_zps3d50d8cb.jpg[/IMG] |
01-21-2014 | #37 |
Join Date: Jun 2005
Location: pittsburgh
Posts: 4,632
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Re: Daily driving a ZR-1
could it be the rad? Maybe a hose? I've blown several rads while owning this car and it came out like a waterfall. could we get some details on how this happened?
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It's not the car, it's the people - Doug Johnson 90 r/r "KEYS ON" nick named "T.L.B" |
01-21-2014 | #38 | |
Join Date: Aug 2009
Location: South Dakota/California
Posts: 3,797
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Re: Daily driving a ZR-1
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To the Left there is a large hole above a hole...the bottom hole is coolant from the Head to the Injector Housing Coolant Manifolds.......if that breaks...coolant all over the floor On top of Injector Housing directly above that lower gasket there is a small port about 1/4 inch diameter that feeds coolant through the Plenum (small L) and on to the TB coolant connection....(which all those ports can be blocked) with no bad effects. That would then allow you to remove the Plenum without having to drain/refill with any coolant.
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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; 01-21-2014 at 04:08 PM. |
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01-21-2014 | #39 | |
Join Date: Nov 2013
Location: ..
Posts: 693
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Re: Daily driving a ZR-1
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ed ramos #3028 |
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01-21-2014 | #40 |
Join Date: Feb 2011
Location: San Marcos CA
Posts: 1,802
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Re: Daily driving a ZR-1
I'm hoping for the bad injector housing gasket coolant leak into the intake tract- that will be no big deal if it turns out to be the only thing wrong.
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